併用探査による降雨に伴う斜面内の地下水挙動のモニタリング手法

概要

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Generally, the groundwater flow in rock slope depends on the direction for the development of rock joints sets, those are very complicated. It is a very important problem on civil and disaster prevention engineering to grasp the groundwater behavior included to the flow conditions in rock slope. In particular, the groundwater flow in a rock slope which has random joint sets is very complicated, and the specific methods which to monitor this flow don't have been developed. The electric resistivity methods have been mainly used to make a survey of the aquifer. However, the investigations in associate with the continuous monitoring of the groundwater flow in rock slope are very few.In this paper, the continuous change of electric resistivity are measured in order to monitor the movement of groundwater flow in rock slope site by dipole-dipole electric resistivity technique on the period of rainfall, and the proposed analysis of groundwater flow in this slope based on the measured resistivity data are tried out. As the results, it is shown the possibility that proposed technique is very useful for the monitoring of groundwater flow in rock slope, and the groundwater conditions through the fracture zone and the rock joints in this site are monitored by this technique.
日本材料学会の論文