岩盤の引抜せん断試験について

概要

論文の詳細を見る
In large construction built on the rock such as large concrete arch dams, the importance of knowledge about the properties of foundation has been recognized. But almost all the methods of foundation test on site are required for excavation with the greatest cars and it could be greatly influence the results of the test. Then, we studied a new method of rock shearing test without excavation. At first, holes (φ100m/m depth 50~180^<cm>) are drilled on the test point by a rotary boring machine. The bundle of PC-wire are buried into the bore holes with mortal. To pull out the PC-wire by the B. B. R. V. jack, it gives the cone shaped failure to the foundation rock. By this method, we can have average value of shearing strength of foundation rocks economically.
一般社団法人日本応用地質学会の論文
1963-12-30