シールドトンネル (3)

[VI-101] Evaluation of measurement accuracy of γ-ray density meter on foam-conditioned soil

Kenji Murata¹, Ryoji Kodama¹, Jun Ozeki¹, *Tomoaki Hirayama², Kenji Shinkawa², Satoshi Takayanagi², Weichen Liu², Issei Sato², Kenichi Kawano², Hideki Nagatani², Atsushi Shiomi³ (1. East Nippon Expressway Company, 2. Kajima Corporation, 3. Soil and Rock Engineering Company)

Keywords:γ-ray density meter, foam as a soil conditioning agent, shield method, measurement accuracy, volume of excavated soil