The aim of this work is to provide a complete data set of direct shear tests and to propose a corresponding simulation approach. Tests have been conducted on crystalline rock samples applying constant normal load (CNL) and constant normal stiffness (CNS) boundary conditions. A physical consistent algorithm which explicitly calculates the forces acting on the fracture surface (FFS) has been developed. This FFS approach can explain the occurrence of surface degradation and shows the main shear characteristics. After all, shearing of rough rock joints remains a complex process and the differences between laboratory and simulation results are still significant in some cases. All data and input files are provided free for download and testing.

这项工作的目的是提供直接剪切试验的完整数据集，并提出相应的模拟方法。已经在恒定法向载荷（CNL）和恒定法向刚度（CNS）边界条件下对结晶岩样品进行了测试。已经开发出一种物理一致性算法，可以明确计算作用在骨折表面（FFS）上的力。这种FFS方法可以解释表面退化的发生并显示出主要的剪切特性。毕竟，粗糙岩石节理的剪切仍然是一个复杂的过程，并且在某些情况下，实验室结果与模拟结果之间的差异仍然很大。免费提供所有数据和输入文件，以供下载和测试。