Shear Strength and Cracking Process of Non-persistent Jointed Rocks: An Extensive Experimental Investigation

In this paper, a number of artificial rock specimens with two parallel (stepped and coplanar) non-persistent joints were subjected to direct shearing. The effects of bridge length (L), bridge angle (γ), joint roughness coefficient (JRC) and normal stress (σ null null null null null null null null null null null null null null null n) on shear strength and cracking process of non-persistent jointed rock were studied extensively. The experimental...