三峡工程岩体结构面刚度特性试验

Experimental Study on Stiffness Characteristics of Rockmass Structural Face in TGP

结合三峡永久船闸高边坡工程，在试验室条件下，对三峡岩体结构面的剪切刚度和法向刚度特性进行了专门试验研究。试验成果分析表明：剪切刚度量值决定于结构面本身的起伏糙度和强度以及法向应力的大小，法向刚度量值主要取决于结构面的张开状态及岩体的风化程度。

With respect to the high slope engineering of the TGP’s permanent lock, a special experimental study on the shear and normal stiffness charteristics of rockmass structural face in the TGP was conducted in the laboratory condition. The test results indicated that the values of the shear stiffness depend on the asperities and strengthes of structural face, as well as the values of normal stress acting on it, and the magnitudes of the normal stifness depend primarily on the opening state of the structural face and the degree of weathering level of rockmass.