effective angle of internal friction

relation between normal stress and peak shear strength, relation between normal stress and residual shear strength, and relation between normal stress and frictional shear strength), the shear deformation properties of two kinds of cement concretes, the characteristics and description of shear faces.

介绍了丹江口大坝后期加高现场原位抗剪试验研究成果，内容包括：法向应力与峰值抗剪强度的关系；法向应力与残余抗剪强度的关系；法向应力与摩擦抗剪强度的关系；两种水泥混凝土剪切变形特性；剪切面特征及描述。