岩石硬性结构面粗糙度量化及其剪切试验研究

在前人研究的基础上,运用网格法,将结构面曲线与特定分度横向网格相叠合,得到曲线网格交点数Nr,通过数理统计和数值模拟,建立了Nr与JRC的关系预测模型,并回归分析建立了Nr-JRC函数公式,进而建立了基于结构面表面二维形态的剪切强度估算公式,进行了剪切试验反演,得出理论计算JRC值与试验获得JRC值接近,从而证明了该理论是可行的。在实际运用中为精确量化JRC提供了一种有效的新方法。更多还原

Research on Quantifying and Shear Test for Rock's Rigid Structure Surface Roughness

Based on previous studies,the grid method,that is,overlopping the structural plane curve with specific sub-degree horizontal grid,is used here to obtain the curvilinear grid intersection point value Nr.Then by mathematical statistics and numerical simulation,the statistical relation prediction model of Nr with JRC is establish,and the regression analysis is carried out to establish the Nr-JRC function relation.Thereby,the shear strength estimation formula is set up based on the structure surface with two-dimensional form,and shear test inversion is carried out to derived that the JRC value from theoretical calculation is close to that from test,which could prove that the theory as mentioned above is feasible and provide a new method for accurately measuring and quantifying the structure surface roughness JRC in the practical application.