About the holding of "Tokyo Gaikan Tunnel Construction Review Committee Expert Committee" (March 19, 3rd year of Reiwa)
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- About the holding of "Tokyo Gaikan Tunnel Construction Review Committee Expert Committee" (March 19, 3rd year of Reiwa)
The 7th Tokyo Gaikan Tunnel Construction Review Committee Held the Expert Committee
March 19, 3rd year of Reiwa
East Nippon Expressway Co., Ltd.
The 7th meeting of "Tokyo Outer Ring Tunnel Construction Review Committee Expert Committee (Chair: Atsushi Koizumi, Professor Emeritus of Waseda University)" was held as follows.
1 date and time
Friday, March 19, 3rd year of Reiwa 10: 00-12: 20
2 places
NEXCO EAST Kanto Regional Head Office Tokyo Outer Ring Construction Office Meeting Room
3 Outline of deliberation
- About recurrence prevention measures
We confirmed the recurrence prevention measures for safe future shield tunnel construction in the Tokyo Gaikan Expressway. - About the report
It has been compiled as a report of this committee.
- Minutes Summary [PDF: 235KB]
- About recurrence prevention measures [PDF: 3.6MB]
- Report (Cover / Introduction / Table of Contents) [PDF: 187KB]
- Report (1. Outline of depression / cavity and history of occurrence) [PDF: 309KB]
- Report (2. Establishment of committee) [PDF: 237KB]
- Report (3. Survey results) [PDF: 38.4MB] (Corrected on July 16, 3rd year of Reiwa)
- Report (4. Ground characteristics) [PDF: 1.1MB] (Corrected on July 16, 3rd year of Reiwa)
- Report (5. Construction data) [PDF: 24.9MB]
- Report (6. Depression / cavity estimation mechanism) [PDF: 1.5MB]
- Report (7. Situation of loose ground and repair) [PDF: 6.2MB]
- Report (8. Measures to prevent recurrence) [PDF: 3.6MB]
- Report (Batch download) [PDF: 73.5MB] (Corrected on July 16, 3rd year of Reiwa)
- Report (reference material) [PDF: 43.0MB] (Corrected on July 16, 3rd year of Reiwa)
- Errata [PDF: 2.1MB]
- We have confirmed with each member of the committee about the revised content of the report, and confirmed that there has been no change in the discussions and results of the committee's estimation of the mechanism and measures to prevent recurrence.
We sincerely apologize for the inconvenience caused to many people due to the correction of a part of the report.
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