Japan Society of Civil Engineers 2025 Annual Meeting
Advanced Search

Session Details

Oral PresentationSection VI

山岳トンネル（覆工・吹付）(1)

Thu. Sep 11, 2025 9:30 AM - 10:50 AM JST
Thu. Sep 11, 2025 12:30 AM - 1:50 AM UTC
223
9:30 AM - 9:40 AM JST(12:30 AM - 12:40 AM UTC)

[VI-527]Rebound rates of temperature-controlled dry shotcreting system in a small-section Tunnel

*Tamami Nishihara1, Koki Kumagai1, Akinobu Hirama1, Yasuaki Kaneko2 (1. Tobishima corporation civil engineering division, 2. Tobishima corporation technical research center)
9:40 AM - 9:50 AM JST(12:40 AM - 12:50 AM UTC)

[VI-528]CO2-Driven Technology for Reducing Rebound in Shotcrete Applications

*Yusuke Fujikura1, Hirano Katsuori1, Suematsu Yukito1 (1. Fujita Corporation)
9:50 AM - 10:00 AM JST(12:50 AM - 1:00 AM UTC)

[VI-529]Evaluation of Carbon Emission Reduction in High-Strength Sprayed Concrete with Fly Ash Replacement

*Naoko Gokitani1, Tetsuya Hironaka1, Saitoh Takahiro1, Rajib kumar Biswas1 (1. OKUMURA CORPORATION)
10:00 AM - 10:10 AM JST(1:00 AM - 1:10 AM UTC)

[VI-530]Improvement of Workability of Sprayed Concrete in Hot Season with Liquid Accelerator by Using High Range Water Reducing Admixture (Delayed Type)

*Shota Hiyama1, Tatsuya Usui1, Takahiko Watanabe1, Masato Simono1, Masaya Suzuki2, Hide Takamori2, Ikuhide Togami2 (1. TAISEI CORPORATION, 2. Sika Japan Ltd.)
10:10 AM - 10:20 AM JST(1:10 AM - 1:20 AM UTC)

[VI-531]Mix Improvement and Strength Properties of Sprayed Concrete with Liquid Accelerator in Hot Season

*Eiji Fujiki1, Tatuya Usui1, Tatuhiko Watanabe1, Masato Simono1, Masaya Suzuki2, Hide Takamori2, Tomoya Nagasawa2 (1. Taisei Corporation, 2. Sika Japan Ltd)
10:20 AM - 10:30 AM JST(1:20 AM - 1:30 AM UTC)

[VI-532]On-site demonstration test of ultra-high strength shotcrete

*Daisuke Kio1, Takashi Nakagawa1, Atsushi Ichinose1, Yuusuke Koshiyama1, Kenichi Moriya1, Tooru Tanaka1, Shuto Sugizono2 (1. TODA CORPORATION, 2. West Nippon Expressway Company Limited)
Back to Category List