技術開発 (1)

[VI-222] Measurement Accuracy of Scattering RI Density Meter for Excavated Soil in TBM Chamber

*Kaichi Mori¹, Shinji Kushida¹, Kenichi Kawano¹, Hideki Nagatani¹, Atsushi Shiomi² (1. Kajima Corporation, 2. Soil and Rock Engineering Co.,Ltd.)

Keywords:RI Density Meter, Caesium Source of Radiation, Measuring Accuracy, Excavated Soil Control, Mud Pressure Shielding Method, Foam Shielding Method