supported by China Postdoctoral Science Foundation(No.2020M680007);Beijing Postdoctoral Research Foundation(No.2020-zz-087);National Natural Science Foundation of China(Nos.51478027 and 51174012);Fundamental Research Funds for Beijing Civil Engineering and Architecture(No.X20031)。
This study aims at proposing a reasonable roughness parameter that can reflect the peak shear strength(PSS)of rock joints.Firstly,the contribution of the asperities with different apparent dip angles to shear strength...