Study of groundwater sampling casing for monitoring device

Okihara, Mitsunobu*; Yahagi, Ryoji*; Iwatsuki, Teruki  ; Takeuchi, Ryuji  ; Murakami, Hiroaki  

One of the major subjects of the ongoing geoscientific research program, the Mizunami Underground Research Laboratory (MIU) Project in the Tono area, central Japan, is accumulation of knowledge on monitoring techniques of the geological environment. In this report, the conceptual design of the monitoring system for groundwater pressure and water chemistry was carried out. The currently installed and used system in research galleries at various depths was re-designed to make it possible to collect groundwater and observe the water pressure on the ground.