Japan Society of Civil Engineers 2026 Annual Meeting
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Session Details

Section VI

山岳トンネル(2)

Wed. Sep 2, 2026 10:30 AM - 11:50 AM JST
Wed. Sep 2, 2026 1:30 AM - 2:50 AM UTC
Room 25, 2nd Floor, Building 3 (Hokkai-Gakuen University)
10:30 AM - 10:40 AM JST(1:30 AM - 1:40 AM UTC)

[VI-108]Construction Performance of a Small Cross-Section, Downhill Gradient Tunnel with Fragile Shale and Large Water Inflow

*Sota Yonemoto1, Ayumu Ido1, Tomoyuki Suzuki1, Kentarou Maruyama2 (1. KAJIMA CORPORATION, 2. Central Nippon Expressway Company Limited)
10:40 AM - 10:50 AM JST(1:40 AM - 1:50 AM UTC)

[VI-109]Pre-drainage Countermeasures for Tunnel Excavation in Water-bearing Unconsolidated White Tuffaceous Silt Layers

*Ryo Hemmi1, Kenji Saikawa2, Kazuhiro Koiwa1, Takuya Todate1, Daiki Yoshida1, Dohta Awaji1 (1. Shimizu corporation, 2. Aomori River and National Highway Office, Tohoku Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism)
10:50 AM - 11:00 AM JST(1:50 AM - 2:00 AM UTC)

[VI-110]Tunnel Excavation in Water-Bearing Unconsolidated White Tuffaceous Silt Layer

*Shin Sugaya1, Kenji Saikawa2, Kazuhiro Koiwa1, Takuya Todate1, Daiki Yoshida1, Dohta Awaji1, Ryo Hemmi1 (1. Shimizu corporation, 2. Aomori River and National Highway Office, Tohoku Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism)
11:00 AM - 11:10 AM JST(2:00 AM - 2:10 AM UTC)

[VI-111]Large amounts of groundwater seepage and countermeasures that occurred during tunnel construction in volcanic ground

*Toshihiro Koyama1, Junji Uno1, Takanori Kimura1, Ami Muraoka1, Norihisa Nakahara1, Fujio Sushida1, Shoichiro Saito2 (1. TEKKEN CORPORATION, 2. Japan Railway Construction, Transport and Technology Agency)
11:10 AM - 11:20 AM JST(2:10 AM - 2:20 AM UTC)

[VI-112]Changes in well water levels at water purification plants due to tunnel seepage and countermeasures

*Kenshirou Inaba1 (1. TOKYU-CNSTRUCTION)
11:20 AM - 11:30 AM JST(2:20 AM - 2:30 AM UTC)

[VI-113]Comparison and Validation of Resistivity Interpretation from Airborne Electromagnetic Surveys with Construction Performance Records

*Keizo Soga1, Nobuhiro Asai1, Toru Abe1, Kohei Tone1, Tadaharu Okada2, Kentarou Kanayama2 (1. TAISEI CORPORATION, 2. Dia Nippon Engineering Consultants Co., Ltd.)
11:30 AM - 11:40 AM JST(2:30 AM - 2:40 AM UTC)

[VI-114]Countermeasures for Tunnel Deformation in Fragile Mudstone Layers

*Kazuhiko Sanehisa1, Shinya Iwaki1, Hidenori Wakai1 (1. TOYO CONSTRUCTION CO.,LTD.)
11:40 AM - 11:50 AM JST(2:40 AM - 2:50 AM UTC)

[VI-115]Countermeasures Against Deformation and Selection of Support Patterns in Ground with a Cap Rock Structure

*Tomohito Urahashi1, Akio Ichikawa1, Masayuki Imai1 (1. takenaka civil engineering)
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