中文摘要：

基于岩石结构面的数字精细化测量,利用fish语言建立裂隙结构面的数值仿真模型进行结构面直剪试验模拟,并对结构面的剪切力学参数进行了反演,反演的力学参数与节理面试验数据有较高的相似度。之后仿照Barton的JRC轮廓线建立了5种粗糙节理模型,并在不同法向荷载下进行直剪数值实验,所得结果与Barton准则进行对照发现两者能较好吻合,说明此数值方法不仅能有效还原任意粗糙节理的表面形貌,从细观角度分析粗糙节理的剪切特性,而且还能有效预测其剪切强度,可以为室内试验和工程应用提供参考和依据。

英文摘要：

Based on the detailed digital measure of the joint surface,exquisite joints model was built successfully by fish language,and direct shear tests were carried out for numerical simulation. And the mechanical parameters of the rock mass structure were obtained by reversal,which were highly consistent with the test results of joint rock. Then,five kinds of rough joints model imitating Barton＇s JRC contour line were built,and direct shear tests for numerical simulation under different constant loads were put forward. Compared with the Barton Standards,the results achieved a good agreement. It proved that this numerical method not only effectively restored any rough surface morphology of joints and analyzed shear characteristics of rough joints from micromechanics viewpoint,but also effectively predicted the shear strength,which could provide reference and basis for the indoor trials and engineering applications.