岩盤の剪断強度に関する一考察

概要

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In this work, an empirical equation that is derived from Ladanyi's shear strength theory of jointed rock masses is proposed. This equation is expressed as follows.φ[numerical formula] While Ladanyi's equation is expressed as follow. [numerical formula] In this empirical equation, the factor "β" that depends on the continuity of rock joints is considered. The value of this factor "β" can be found, β=1 for highly joined rock masses, β=0 fro intact rock and 0<β<1 (in many casies β=0.5~0.85) for the intermediate states of the rock masses. Theoretical shear strength curves are suggested by the combination of general φ_b (basic friction angle), i (dilation angle), σ_c (uniaxial compressive strength) and "β". The relation between the theoretical shear strength carves and measured strength values which are obtained from in situ block shear test is examine in many casies.
一般社団法人日本応用地質学会の論文
1988-06-25