The Shizuoka Water & Maglev Tunnel Problem

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jok
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The Shizuoka Water & Maglev Tunnel Problem

Post by jok »

Shizuoka Prefecture is concerned that the water balance in the important Oi River will be severely disrupted by the construction of the tunnel for the Japanese high-speed Maglev system. The river is of considerable importance for the drinking water supply of some 600,000 people in the prefecture and is also important for the region's paper industry, which has a high demand for water. The prefecture is demanding the detour and complete return to the Oi River of all water that could be affected by the tunnel.

One of the reasons why the prefectural government and water users have demanded that JR Tokai guarantees to return the entire volume of water (from the tunnel construction is that JR Tokai has been claiming that there will be no impact from the construction of the linear railway line. JR Tokai has made several predictionsregarding the issue that seem insufficient from a scientific point of view. They lacked prior studies of geology, river flow, groundwater levels, and precipitation. It seems difficult to predict the extent of the impact when data is insufficient. The prefectural government has therefore demanded that all relevant data be researched and made available before a decision is made on tunnel construction ...

The conflict plays out against the backdrop of years of conflict of a fundamental nature between the prefecture and JR Tokai. The prefecture has long considered itself disadvantaged by JR Tokai, especially with regard to the connection of the prefectural airport and the city of Shizuoka by conventional Shinkansen trains. The bitterness in the prefecture about the plans and decisions of JR Tokai seems to be great.

While the prefectural government has consistently demanded the return of all water from the tunnel in order to avoid the impact of the construction work on the middle and lower reaches of the river, the Central Japan Railway Company has stepped up its insistence that the impact can be avoided. Without the prefecture's approval, JR Tokai will not be able to realize the tunnel for a long time. This is already delaying the entire line construction and the start of operations by years.

Image

Source: 水資源をめぐるリニア中央新幹線の有識者会議が紛糾…赤羽国交相がJR東海に苦言
https://response.jp/article/2020/05/11/334444.html Accessed 2021-04-05

The solution (in my opinion) will be a compromise that will require significant concessions from JR Tokai, including possibly a Maglev station in the prefecture (not planned so far), elaborate water return lines, and Nozomi Shinkansen stops in Shizuoka city.

For those who are interested in the overall context in more detail: Here is a link to a publication of the IMB on this topic:

https://www.researchgate.net/publication/344407084_A_Maglev_a_Tunnel_a_River_On_the_Delays_in_the_Realiziation_of_the_Tokyo-Nagoya_Maglev_Line
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Did the Department improperly alter the documentation of meetings?

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Did the Ministry of Land, Infrastructure, Transport and Tourism improperly alter the documentation of meetings?

Did the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) add text to the documentation of an expert meeting on the construction of the Shinkansen Central Line in Shizuoka Prefecture that was not actually said?

In an interview with the MLIT, it seems that in the documentation of the 9th meeting held in February this year, some words were added that were not actually said, such as "I think it is time to prepare and publish an interim summary" and "I strongly believe that it is necessary to summarize the results from a scientific and technical point of view." However, the MLIT claims rather the opposite: that some of what was actually said was deleted.

The Ministry of Land, Infrastructure, Transport and Tourism is quoted as saying, "We followed the corrections made by the committee members when we circulated the draft minutes" and "In the past, we have made additions and corrections to the minutes to make them easier to understand in written form, as long as the purpose of what was said remains unchanged, and we believe it is within the scope of such corrections this time as well."

Source: TBS News Japan, 7日 23時25分
https://news.tbs.co.jp/newseye/tbs_newseye4240715.html
Accessed: 2021-04-07
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Linear track meeting fails to take minutes as said

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The Ministry of Land, Infrastructure, Transport and Tourism (MLIT) has announced that the minutes of a meeting of experts on the Shizuoka construction zone of the Central Shinkansen Line were not prepared as said, and some parts were added or deleted after the fact. The Ministry of Land, Infrastructure, Transport and Tourism (MLIT) says it made the changes at the request of committee members, but experts say the minutes are meaningless.

Info: Based on Source: https://www.hokkoku.co.jp/articles/-/378893
Accessed: 2021-04-07

From the perspective of a domocratic form of government, it seems surprising that the results were changed. Any addition to the protocols is questionable. Behind the scenes, there seems to be going on a struggle for interpretive sovereignty ...
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Re: The Shizuoka Maglev Website

Post by IMB »

Translated form Japanese:
Shizuoka Prefecture has recently renewed its website with information on the problem of reduced flow of the Oi River due to the construction of the Central Linear Shinkansen Line. In addition to releasing a new video explaining the geological structure of the Minami-Alps, [...] the site has been strengthened by organizing the status of the prefectural and national expert meetings.

 At the beginning of the website, the reason for the prolonged delay in resolving the issue is stated: "The dialogue is taking a long time because it is difficult for JR Tokai to submit data as a basis for dialogue. The Ministry of Land, Infrastructure, Transport and Tourism (MLIT) clearly stated the position of the expert panel: "The MLIT, feeling threatened by the speed of progress in the dialogue, established the panel to provide guidance to JR.

[...]
The website was redesigned after the prefectural assembly pointed out the need to strengthen the dissemination of information. Yasuhiro Oribe, director of the prefectural government's Life and Environment Department, stressed, "Through this site, we hope to convey the prefecture's position, which is often misunderstood, in an easy-to-understand manner to people in and outside the prefecture.
Source (in Japanese): 南アルプスの特殊な地質説明 静岡県がHP刷新【大井川とリニア】
https://www.at-s.com/news/article/shizuoka/883853.htm
Accessed: 2021-04-08
.
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Citizens' group protests against Maglev line

Post by jok »

Citizens' group in Kakegawa signs petition of 3,650 people to the governor to "not allow the start of construction"

 On April 7, a citizens' group called "Ogasa-Kakegawa Association for Protecting the Water and Nature of the Oigawa River from Linear," headed by Katsuyuki Sano, submitted 3,650 signatures to Governor Heita Kawakatsu, urging him not to approve the start of construction of the Shizuoka section of the Minami-Alps Tunnel for the Central Linear Railway.

 According to the citizens' group, there are about 80 members. Most of the water used for domestic, agricultural and industrial purposes in the Ogasa and Kakegawa areas, including Kakegawa City and Kikugawa City, comes from the Oi river.

Source: Mainichi Shimbun, 2021/4/8 Local Edition (in Japanese).
Online: https://mainichi.jp/articles/20210408/d ... 20/118000c
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Credibility problem of the MLIT?

Post by IMB »

The following text is a summary of key statements from a Japanese text in the Nikkan Sports Shimbun.
https://www.nikkansports.com/general/co ... 00087.html
Accessed: 2021-04-09

リニア中央新幹線有識者会議 国交省お粗末の限り/政界地獄耳
Title Translation: Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) has done a lousy job at the expert panel meeting on the Central Shinkansen line.
2021年4月9日8時28分

Summary
In April 2021, the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) held an expert meeting to discuss the impact of the Shizuoka construction area on water resources. The Ministry of Land, Infrastructure, Transport and Tourism (MLIT), which was supposed to mediate the conflict between JR Tokai and Shizuoka Prefecture, did not play its role. The MLIT's Railroad Bureau was out of control.

The Ministry of Land, Infrastructure, Transport and Tourism (MLIT) is suspected to have been in agreement with JR Tokai from the beginning. The problem this time was the exchange of opinions on how to summarize the interim report at the 9th meeting (February 28). It was found that the minutes were not prepared as stated, and some parts were added or deleted after the fact. This means that all of the policies set forth by the ministry have failed.

From the beginning, there were strong protests from the media and the prefecture that the comments made by the chairperson of the expert panel, Shoji Fukuoka (Professor at Chuo University's Research and Development Organization), after the meeting, did not reflect the content of the meeting.

Heita Kawakatsu, the governor of Shizuoka Prefecture, criticized the earlier meeting on March 23, saying, that the meetings follow JR Tokai's documents and lacks neutrality. He also said that the chairperson's comments were compiled outside the meeting in an undisclosed location and called for the chairperson to be replaced.
Original document/report: Nikkan Sports Shimbun (in Japanese) https://www.nikkansports.com/general/co ... 00087.html
Accessed: 2021-04-09
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"Chairman's talk is a waste of time" (?)

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Governor and others criticize Chairman of Expert panel: The Chairman's talk "is a waste of time":

The Ministry of Land, Infrastructure, Transport and Tourism's expert panel (chaired by Fukuoka Shouji, a professor at Chuo University's Research and Development Organization) has issued a written statement summarizing its discussions on the construction of the Shizuoka section of the Minami-Alps Tunnel for the Central Linear Shinkansen (Maglev). Shizuoka prefectural Governor Kawakatsu Heita and the chiefs of the Oigawa River basin are opposing the statement and have argued that the statement is unnecessary.
The Shizuoka prefectural government is also calling for an improvement in the method of producing the report privately after the meeting.

The Ministry of Land, Infrastructure, Transport and Tourism's Railway Bureau, the secretariat, insists that the chairman's report is indispensable.

Info based on Mainichi Shimbun (online): https://mainichi.jp/articles/20210410/d ... 20/183000c
Accessed 2021-04-10
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Re: The Shizuoka Water & Maglev Tunnel Problem

Post by jok »

Records differing from those of experts' meeting appear in minutes
Shizuoka Prefecture criticizes MLIT over water problem in linear railway construction


Shizuoka Prefecture has strongly criticized the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) for recording in the minutes of a national expert meeting to discuss water issues in the construction of the Central Linear Railway.

Governor Kawakatsu is quoted as saying: "The chairperson's comments seem to reflect the intentions of the secretariat. We were astonished to learn of this.
 According to the prefectural government, in the minutes of the ninth meeting of the expert panel held in February 2021, the chairperson of the panel made comments such as, "I think it is time for the expert panel to reflect the results of its discussions and issue an interim report," but no such comments were actually made.
 The prefectural government has called for full disclosure of the experts' meeting, but the official said, "The minutes are meant to summarize what was said in an easy-to-understand manner, but they go beyond the scope of not changing the purpose of the meeting, giving the impression that the discussion was exhaustive. It gives the impression that the discussion has been exhausted. Transparency has not been ensured," he said, strongly criticizing the MLIT.

Information translated from Japanese Source: https://news.yahoo.co.jp/articles/f7b04 ... 8470a71aa2
Accessed: 2021-04-14
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Expert panel "distrustful" of draft interim report

Post by IMB »

有識者会議 難波副知事中間まとめ案に「不信感」
Translation: Expert panel "distrustful" of Vice Governor Namba's draft interim report

Summary of a report by Shota Wada, Asahi Shimbun.
https://www.asahi.com/articles/ASP4K74GXP4KUTPB002.html
Accessed 2021-04-18

Image
The 11th meeting of the expert panel on linear technology held at the Ministry of Land, Infrastructure, Transport and Tourism (2:04 p.m., April 17, 2021, Kasumigaseki, Tokyo; photo of the Ministry of Land, Infrastructure, Transport and Tourism)
https://www.asahi.com/articles/ASP4K74GXP4KUTPB002.html
Accessed 2021-04-18

The Ministry of Land, Infrastructure, Transport and Tourism (MLIT) held a meeting of experts at the ministry on April 17 [...]. The government presented a revised draft interim report based on the content of the previous meeting.

After the meeting, Takashi Namba, Vice Governor of the Ministry of Land, Infrastructure, Transport and Tourism, said, "I was quite surprised at the contents of the draft based on the analytical model, such as the fact that river flow in the middle and lower reaches will be maintained. After the meeting, Mr. Takashi Namba, Vice Governor of Japan, expressed his dissatisfaction with the way the report was compiled, saying, "I was quite surprised at the contents of the report, and I thought that JR Tokai and the Ministry of Land, Infrastructure and Transport (MLIT) did not understand it.

 The meeting mainly discussed efforts to avoid or reduce the impact on the use of water resources. [...]

The total amount of water inflow that may occur as a result of the tunnel excavation was estimated based on the example of the Seikan Tunnel.
[...]

Vice Governor Namba is reported as saying: "I would like you to stop using models for analysis. I can't help but have a sense of distrust.


url]https://www.asahi.com/articles/ASP4K74GXP4KUTPB002.html[/url]
Accessed 2021-04-18
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Re: The Shizuoka Water & Maglev Tunnel Problem

Post by Miss Maglev »

Summary and translation of Japanese article:
リニアで対話路線を重視 岩井氏が正式出馬表明
https://www.asahi.com/articles/ASP5H0DN3P5GUTPB00V.html
Accessed: 2021-05-15

On June 14, Shigeki Iwai, 52, former Vice Minister of Land, Infrastructure, Transport and Tourism, held a press conference in Shizuoka City to announce his candidacy in the upcoming gubernatorial election. With regard to the issue of the Central Linear Railway Shinkansen, which is considered to be the biggest point of contention, Iwai indicated that he would promote dialogue with the central government and JR Tokai, highlighting the differences between him and the current Governor Heita Kawakatsu, who is taking a more confrontational stance.

 Iwai said, "The water of the Oi River is the water of life. We cannot proceed without the understanding of the residents. On the other hand, he said, "It is also important to communicate well with them," pointing out the need for discussions with the national government and JR to overcome the situation.

https://www.asahi.com/articles/ASP5H0DN3P5GUTPB00V.html
Accessed: 2021-05-15
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Maglev Tunnel as an election campaign theme

Post by Miss Maglev »

The election for Shizuoka Prefecture's governor, which will be held in June 2021, is expected to be a head-to-head contest.
 Supporters of newcomer Shigeki Iwai (former vice minister of Land, Infrastructure, Transport and Tourism) harshly criticized the current prefectural administration of incumbent Govenor Heita Kawakatsu, saying, "The Governor talks about a lot of problems, but there are no results to show what he has done".

 On the other hand, Govenor Kawakatsu described the MLIT (Ministry of Land, Infrastructure, Transport and Tourism) and the Central Japan Railway Company (JR Tokai) as "powerful forces" in a video message he sent to the opening of his office in Shizuoka City on March 16. Speaking about himself on the campaign trail, he said, "I feel like a weak person standing up to a giant. Once the water is lost, it will not come back. We have to resist," he said.

 Govenor Kawakatsu, who has criticized JR and the national government's handling of the water problem in the Linear-Maglev project, has previously ridiculed Mr. Iwai, then vice minister of MLIT, as now being "the face of the national government" (because of Mr. Iwai's support for the Linear-Maglev project), and seems to be positioning the gubernatorial election as a " substitute war" against the proponents.

Info based on a report of Sankei NEws:
静岡知事選、リニア建設巡り「代理戦争」 推進・反対で舌戦
https://www.sankei.com/politics/news/21 ... 18-n1.html
Accessed on May 18, 2021.
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Maglev Tunnel as an election campaign theme

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In an interview on May 18, JR Tokai president made no mention of the Shizuoka gubernatorial election, instead saying that 'eliminating residents' concerns is the most important thing' for linear maglev construction.

Shin Kaneko, President of JR Tokai, stressed the need to continue to explain the ongoing conflict with the prefecture over the outflow of spring water from the tunnel construction. "The most important issue in the water problem is to resolve the concerns of the people in the middle and lower reaches of the Oi River about the use of water".

 Last week, a citizens' group submitted about 20,000 signatures to the prefectural government regarding the construction of the linear line Shinkansen. The prefectural government has informed the JR Tokai about this.

Info based on
JR東海社長、静岡県知事選に言及せず リニア工事には「住民の不安解消が一番大事」
https://news.yahoo.co.jp/articles/4b7b7 ... b132e03ee1
Accessed May 19, 2021
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Maglev Tunnel as an election campaign theme

Post by Miss Maglev »

県知事選 4選狙う現職VS前国交副大臣 コロナ、リニア 政策の違いは 

Image
Source: https://www.tokyo-np.co.jp/article/105375
Accessed 2021-05-20

Summary of a report in Japanese media:
Info based onhttps://www.tokyo-np.co.jp/article/105375
Accessed 2021-05-20


As for the linear railway, current Governor Kawakatsu has not approved the start of construction of the Shizuoka section, citing concerns about the decline in the volume of water in the Oi River and the impact on the natural environment of the Southern Alps.

Governor Kawakatsu pointed out that, Mr. Iwai, his competitor in the upcoming election, was the "face of the Ministry of Land, Infrastructure, Transport and Tourism" because he was the Vice Minister of Land, Infrastructure, Transport and Tourism, and that he was composed of "conflicting opinions on the side of advancing the linear railway and the side of stopping it.

Mr. Iwai said that the construction of the Linear maglev should not begin without the understanding and cooperation of the residents of the Shizuoka basin. He emphasized that the understanding of the watershed area is a prerequisite.

Governor Kawakatsu pointed out that "the most important difference" is how to return all the spring water generated by the tunnel construction, including that flowing out of the prefecture, and rejected JR Tokai's proposal to return all the spring water in Yamanashi Prefecture over a period of up to 20 years, saying, "I have concerns about whether we can protect the water and organisms in the basin.

Mr. Iwai recognized that the "gap with the prefecture has not been bridged even at the (MLIT's) expert meeting" regarding the return of all the water. It is important to base the decision on scientific evidence. It is important to base the decision on scientific evidence, and we need to think about it without bias," he said, without stating the necessity of returning the entire amount.


Info based onhttps://www.tokyo-np.co.jp/article/105375
Accessed 2021-05-20
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Shizuoka disapproval of the draft interim report

Post by Miss Maglev »

 Shizuoka Prefecture has expressed its disapproval of the draft interim report of the Ministry of Land, Infrastructure, Transport and Tourism's expert panel to review JR Tokai's environmental measures for the Shizuoka section of the Central Linear Shinkansen, making the future of the discussion uncertain. Governor Heita Kawakatsu has gone so far as to call for the replacement of the chairperson of the panel, claiming that the panel is not neutral and approves of JR Tokai's plans.

Source: https://www.chukei-news.co.jp/news/2021 ... 250801_01/
Accessed: May 25, 2021
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Re: The Shizuoka Water & Maglev Tunnel Problem

Post by Eurorapid »


静岡県知事選公開討論会 リニア問題白熱 川勝氏/生態系や水質にも問題 岩井氏/住民判断 ルート変更も

Shizuoka gubernatorial election open debate: Kawakatsu: Linear railroad issue heated up; Iwai: Residents may decide to change route

Translated info and summary of a Japanese report

https://www.at-s.com/news/article/shizuoka/906481.html Accessed on 2021-05-26

On June 25, incumbent Heita Kawakatsu (72) and former councilor Shigeki Iwai (52), both of whom have announced their candidacy in the upcoming gubernatorial election [...] attended an open debate hosted by the Shizuoka Junior Chamber of Commerce and Industry at Shimizu Terrsa in Shimizu Ward, Shizuoka City. When Mr. Iwai took a tough stance against JR Tokai, saying that "changing the route or stopping the construction is an option", Mr. Kawakatsu responded with "a very important comment", and a heated discussion ensued.
[...]

They asked each other questions on the issue of the linear Maglev. Kawakatsu asked Mr. Iwai whether he agreed or disagreed with the draft of the interim report compiled by the expert committee of the Ministry of Land, Infrastructure, Transport and Tourism, which states that after the tunnel is dug, spring water from Yamanashi Prefecture will be pumped up for about 20 years. Mr. Iwai emphasized his strict stance, saying, "We will not approve the project unless the residents of the basin understand it. Mr. Kawakatsu responded by saying that it was only natural to obtain the understanding of the local residents and asked again whether he agreed or disagreed with the draft report, but time ran out.
 Mr. Iwai's reference to changing the route and stopping construction was also in response to Mr. Kawakatsu's question, and Mr. Iwai responded, "If the local residents make a decision, I will convey that decision. If the local residents make a decision, I will convey it to them." When Mr. Kawakatsu asked whether Mr. Iwai was speaking from the responsibility of the LDP as a whole, Mr. Iwai said, "That may happen based on the situation at the time".


https://www.at-s.com/news/article/shizuoka/906481.html Accessed on 2021-05-26
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Re: The Shizuoka Water & Maglev Tunnel Problem

Post by Miss Maglev »

どうなるリニア 静岡・川勝知事〝けんか戦法〟の歴史と功罪
Summary of a Japanese Media report
We have been asking JR Tokai to return all the spring water from the tunnel, but they have not responded in good faith. It is difficult to cooperate with JR Tokai at this time.

In October 2009, Governor Heita Kawakatsu, who had just won a third term in office at the time, held a press conference to express his dissatisfaction with JR Tokai over the decline in the volume of water in the Oi River in relation to the Shizuoka construction zone of the Central Linear Shinkansen. In a press conference, he vented his dissatisfaction with JR Tokai, saying, "They have not expressed any remorse, they have not given any explanation, and they have not promised to bring back the full amount of water.


Source: https://www.sankei.com/article/20210601 ... VJSKLG5SA/ Accessed: 2021-06-01
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Aerial view of the Tunnel area in the Japanese Alps

Post by Miss Maglev »

2021-06-07_tunnel_aerial_view
2021-06-07_tunnel_aerial_view
.
The upper stream of the Oi River, where a tunnel for the Central Linear Railway is planned.

Photo by website: https://www.at-s.com/news/article/shizuoka/911903.html Accessed june 7, 2021
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JR Tokai: "We will resolve the maglev problem as soon as possible"

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2021-06-10 JR Tokai president statement
2021-06-10 JR Tokai president statement
Screenshot of yahoo Japan: 6/10(木) 12:48配信 https://news.yahoo.co.jp/articles/fa0cb ... 2b79b8b436 Accessed: 2021-06-10

Before a top meeting with the Shizuoka governor over the linear railway construction, JR Tokai President Kaneko reiterated his stance to solve the water problem as soon as possible.

Earlier, JR Tokai President Kaneko had met with the governor at the prefectural government office and asked for his understanding of the preparatory work before digging the tunnel. However, the prefectural government did not give permission and the construction has not started until today. In a press conference on June 9, 2021, JR Tokai President Shin Kaneko said that he would continue to explain the situation in an easy-to-understand manner at the national expert committee in order to resolve the concerns of the residents. He said that JR Tokai will continue to work hard to solve the problem: "We will do our best".

Info based on yahoo Japan: 6/10(木) 12:48配信 https://news.yahoo.co.jp/articles/fa0cb ... 2b79b8b436 Accessed: 2021-06-10
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JR, the National Government, and Shizuoka Prefecture

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JR, the National Government, and Shizuoka Prefecture to Discuss the Future of the MLIT Expert Meeting: Discussion Points and Impacts on the Volume of Water in the Midstream and Downstream Areas

Summary and English translation of Japanese Media Report: Source: https://www.at-s.com/news/article/shizuoka/913850.html
Accessed: 2021-06-11

One of the main issues in the Shizuoka Prefecture gubernatorial election to be held on March 20 is the water supply problem of the Oi River due to the construction of the Central Linear Railway Shinkansen. How will the construction of a long tunnel through the Southern Alps, the source of water, affect the use of water in the middle and lower reaches of the river? The following is an overview of the discussions at the expert panel held by the Ministry of Land, Infrastructure, Transport and Tourism, including JR Tokai's explanation and the views of the prefectural government.

The Ministry of Land, Infrastructure, Transport and Tourism (MLIT) has held 11 expert meetings since last April. No conclusions were reached in April this year in Tokyo.

JR Tokai's view and explanation

 The Ministry of Land, Infrastructure, Transport and Tourism's Expert Council was set up by the Ministry's Railway Bureau in April last year to provide guidance to JR. Experts in hydrology, tunnel engineering, and other fields are discussing the impact of the tunnel on water use on the following themes:
1) how to return all the spring water from the tunnel to the surface water of the Oi River, and
2) the impact of the tunnel on the groundwater in the middle and lower reaches of the Oi River.
JR also presented a proposal to return spring water generated in Yamanashi and Nagano prefectures over a period of time after the tunnel is penetrated, as a measure to ensure the return of all spring water from the tunnel as requested by the prefecture.

Surface water
JR Tokai's explanation: Can be maintained by making up for the decrease
 According to the flow forecast (assuming the tunnel is not covered with concrete or tarpaulins), surface water in the middle and lower reaches of the tunnel will not decrease. The flow rate will be maintained because the spring water from the Shizuoka section will be returned to the Oi River to compensate for the decrease in surface water upstream.
 However, if the geological conditions and precipitation assumptions on which the projections are based are different, the amount of water flowing out of the prefecture and the amount returned to the Oi River will change, and the amount of surface water in the middle and lower reaches of the river may decrease.
 Considering the safety of the construction, until the tunnel is penetrated, spring water from the sections dug from the Yamanashi and Nagano prefectures will not be returned to the Oi River and will flow out of the prefecture. Even in such a case, if the water from the tunnel in the Shizuoka section is pumped up and returned to the Oi River, the volume of surface water in the middle and lower reaches of the river will be maintained, except in the case of power outages.

Discussions at the MLIT expert meeting: Unclear if the predictions are correct

 If the volume of water inflowing into the tunnel is the volume assumed by JR Tokai, the facility plan is to be able to return the entire volume of water inflowing into the Oi River after the tunnel is penetrated using a conduit tunnel and pump-up.
 However, according to JR's construction plan, the tunnel will be excavated from the Yamanashi side near the border between Shizuoka and Yamanashi prefectures to ensure construction safety, so the spring water will flow out of the prefecture until the tunnel is penetrated, and not all of it will be returned.
 JR's predictions for the flow rate of the tunnel have shown that the amount of surface water will be maintained even if the tunnel water flows out of the prefecture, but the predictions are based on existing data on geology and precipitation, and have not been examined to see if they are sufficient. It is unclear if the predictions are correct.


The prefectural government's view: Conduct additional surveys before construction begins.

  If the spring water from the tunnel were to flow out of the prefecture, it would inevitably have an impact on water use in the middle and lower reaches of the Oi River. The Ministry of Land, Infrastructure, Transport and Tourism (MLIT) expert panel has been particularly inadequate in discussing the impact of the spring water flowing out of the prefecture. Additional geological surveys are needed before the start of construction and the accuracy of the estimated amount of outflow from the prefecture needs to be improved.
 In order to avoid the impact of outflow, it is important to have a detailed understanding of the volume of "sudden water inflow" that occurs in large quantities at the tip of the tunnel during excavation. If the estimated volume of water near the border of the two prefectures is low, then the border of the construction area should be aligned with the border of the two prefectures, and the tunnel should be bored downward from the Shizuoka side toward the border of Yamanashi and Nagano prefectures to prevent water from flowing out of the tunnel.
 In the event of a prolonged power outage due to an earthquake or other large-scale disaster, securing the backup power supply needed to pump up the spring water will also be an issue.

Groundwater
JR Tokai's explanation: Water level drop converged in upstream
 According to the analysis of the composition of groundwater in the upstream and middle and downstream areas, the main recharge source of groundwater in the middle and downstream areas is not considered to be groundwater in the upstream area. The extent of groundwater level decrease due to tunnel excavation has converged near the exit of the conduit tunnel.

Discussion by MLIT expert committee: Continuation of water level observation is necessary.
 Once the groundwater in the upstream area becomes surface water, it flows down and becomes groundwater in the middle and downstream areas, so if the amount of surface water in the middle and downstream areas is maintained, the impact on the amount of groundwater will be very small. If the amount of surface water in the middle and lower reaches of the river is maintained, the impact on the amount of groundwater will be very small. We do not know the specific impact and should continue to observe groundwater levels.

The prefectural government's view: Observation should be useful for countermeasures.
 There is no zero impact. A series of observation wells should be installed from upstream to midstream and downstream. It is necessary to increase the number of observation points for groundwater levels and take measures to understand them. It is necessary to increase the number of observation points of groundwater level to understand the situation.

Proposal to return water inflow after penetration
JR Tokai explained that it would take 10 to 20 years to return the same amount of water.
 It is inevitable that spring water from the tunnel will flow out of the prefecture, but instead, after the tunnel is penetrated, the same amount of water will be returned to the tunnels in Yamanashi and Nagano prefectures over a period of time. The estimated outflow to the Yamanashi side is 3 to 5 million tons (equivalent to about 10,000 elementary school swimming pools). It is estimated that it will take 10 to 20 years to return the same amount of water.

Discussions at MLIT expert meeting: Effective risk countermeasures
 Isn't this an effective risk management measure? The secretariat (Ministry of Land, Infrastructure, Transport and Tourism, Railway Bureau) and I thought about this idea. There is an issue of time lag, but the idea is to compensate for the spring water that has flowed out. JR will consult with the prefectural government and cities and towns in the basin regarding the specific method.

The prefectural government's view: The impact cannot be avoided.
 If it takes a long time to return the water, the water in the Oi River will decrease in the meantime, and the impact cannot be avoided. It is questionable whether the amount and quality of water to be returned will be sufficient when considering the possibility of a massive outflow due to a sudden spring. The detailed geology of the area is unknown, and there is a possibility that the situation will not turn out as expected.


Source: https://www.at-s.com/news/article/shizuoka/913850.html Accessed: 2021-06-11
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Miss Maglev
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Status of the Shizuoka Water & Maglev Tunnel Problem

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 Talks on the resumption of construction of the linear railway between the prefectural government, which is concerned that the tunnel construction will reduce the flow of the Oi River, which runs through Shizuoka Prefecture, and JR Central, which is the main operator of the project, are running at a parallel track.
 In April last year, the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) set up an expert panel consisting of river engineering experts to mediate between the prefecture and JR Tokai. In March of this year, the ministry released a draft of an interim report that was in line with JR Tokai's assertion that the flow rate in the middle and lower reaches of the river would be maintained if the spring water discharged during the construction work was returned through a water channel tunnel.
 However, Mr. Kawakatsu protested. The expert panel is also discussing the impact on the ecosystem around the construction zone, and the timing of the final report cannot be predicted. Even if the final report is completed, it is unclear whether the prefectural government will accept it, and a MLIT official said, "We have no choice but to carefully fill in the gaps (in the arguments between JR Tokai and the prefecture).

 The suspension of construction on the Shizuoka section has made it difficult to open the Tokyo-Nagoya line between Tokyo and Nagoya in 2027, as originally planned, and the prospect of a new opening remains uncertain.
Kawakatsu stressed to his supporters in Shizuoka City on the evening of the 20th (after his victory in the gubernatorial elections) "the people of the prefecture have entrusted me with the question of whether or not we can protect the natural environment. Afterwards, he told reporters, "I will continue to have a thorough dialogue with JR Tokai".


English translation and summary of a Japanese Media report https://www.jiji.com/jc/article?k=2021062000383&g=pol
Accessed June 20, 2021

Image
Shizuoka Governor Heita Kawakatsu takes questions from reporters on a forest road leading to the construction site of the Central Linear Railway in Shizuoka City in July 2020.
Japanese Media report https://www.jiji.com/jc/article?k=2021062000383&g=pol
Accessed June 20, 2021
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NHK: The Shizuoka Water & Maglev Tunnel Problem

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Summary and translation of a Japanese report NHK

Image
Source: https://www3.nhk.or.jp/news/html/202106 ... 61000.html Accessed: 2021-06-24

The Central Japan Railway Company (JR Tokai) is aiming to open a line between Shinagawa and Nagoya in 2027. It will connect the two major cities in as little as 40 minutes, passing through Shizuoka and other prefectures.
Expectations for economic revitalization are high, and there are many calls for an early opening.
On the other hand, Shizuoka Prefecture is concerned about the impact on the water of the Oi River, which supports the lives of 620,000 people in the basin and is called "the water of life" by the locals. The reason for this is that a linear railway tunnel is planned to run under the headwaters of the Oi River, deep beneath the Southern Alps.

In October last year, about 100 people in the basin, including tea growers, a specialty of Shizuoka Prefecture, filed a lawsuit in court to stop the construction in the prefecture.

The tunnel, which is considered to be one of the most difficult to build along the linear railway line, will be dug at a depth of up to 1,400 meters below the surface of the mountain. It is believed that a large amount of groundwater, which is the source of water for the Oi River, is stored underground.
According to an estimate by JR Tokai, if no measures are taken, the water in the Oi River will decrease by up to 2 tons per second as a result of the groundwater gushing into the tunnel due to the construction.

This is said to be equivalent to enough water for 600,000 people.

[...]

Ahead of the gubernatorial election, NHK conducted an Internet survey of 1,000 prefectural residents over the age of 18.
When asked what they expected most from the linear railway, the answer chosen by the largest number of people, 41%, was "Nothing.
The answer chosen by the largest number of respondents (41%) was "I have no expectations," far exceeding the next most popular answers of "shortening travel time" (18%) and "revitalizing the Japanese economy" (16%).
There are no plans to build a linear line station in Shizuoka Prefecture. In my interviews, I often hear people say, "Since there will be no station, there is no benefit.

On the other hand, when asked what they are most worried about, 37% answered "the impact on water resources", followed by "the impact on the ecosystem of the Southern Alps (20%)", indicating that nearly 60% are concerned about the impact on the environment.

The survey suggests that people are becoming more concerned about the destruction of the environment rather than their expectations for the linear line.


Source: https://www3.nhk.or.jp/news/html/202106 ... 61000.html Accessed: 2021-06-24
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Miss Maglev
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Shizuoka Water & Maglev Tunnel Problem

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Summary of translated Japanese Media news:  In 2014, the prefectural government requested JR to return all spring water generated in the in-prefecture section during the construction period and after the railway was put into service as part of the environmental impact assessment procedure, and President Kaneko announced the return of all water.

 Mutsumi Asaba, secretary-general of the Oigawa Right Bank Land Improvement District, which supplies water to farmers, said of the president's statement, "I feel like he is evading responsibility. JR doesn't have the attitude of not allowing water to flow out as much as possible. The relationship of trust is important," he said.

 It is said that a large amount of water is released when excavating through water-containing ground, and JR has repeatedly explained the possibility of the tunnel tip being underwater during excavation. When the Minami-Alps Tunnel is dug from Yamanashi and Nagano prefectures, the spring water in Shizuoka Prefecture flows out to other prefectures at a gradient, and the amount of spring water on the Yamanashi side alone is said to be equivalent to about 10,000 elementary school swimming pools.
   
 A spokesman for JR Tokai said that when asked by Governor Heita Kawakatsu (at a top-level meeting in June last year) what he would do if the full amount could not be returned, President Shin Kaneko said, "In the end, we will make sure that people who use water from the Oigawa River do not suffer. The press conference held on June 17 this year was to the same effect. He did not say whether or not the full amount of water would be returned during the construction period.


Info Source: https://www.at-s.com/news/article/shizuoka/931015.html Accessed: July 18, 2021
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Miss Maglev
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Joined: 23. Apr 2021, 13:30

Re: The Shizuoka Water & Maglev Tunnel Problem

Post by Miss Maglev »

The construction of the Central Linear Railway, which JR Tokai aims to open between Shinagawa, Tokyo and Nagoya in 2027, has come to a standstill. This is because Governor Heita Kawakatsu, who is concerned about the environmental impact of the construction of a tunnel under the Southern Alps in northern Shizuoka Prefecture, has refused to allow construction to begin. Kawakatsu won the gubernatorial election in June, when the linear railway issue was the main point of contention. Since then, with the support of the people of the prefecture, he has been pressing the company to change the route of the project at various occasions, and the situation has become increasingly confusing.

Image

Source: https://sankei-sankei-prod.cdn.arcpubli ... EUFMKY.jpg
https://www.sankei.com/article/20210728 ... FJISYSC4I/ Accessed: 2021-07-28
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