岩石の風化と崩壊(2) ―崩壊の要因としての岩盤の特性―

Abstract

We extend our investigations of characters of rocks for primary factor of landslide which wehave mentioned in our previous paper.In the investigation of landslide, it is the purpose of this paper to point out that the coherenceof rocks was expressed by weathering of rocks and alternation of rocks for the factor of landslide.In this type of investigation, the choice of the method is in itself a problem, we describethe procedure of survey for the determination of rock coherence and indication method of rockcoherence.We express the extent of rock coherence by the density of joint and the compressive strengh(hammer rebound).