Point Cloud Data of Fracture Surfaces with Different Roughness

This dataset includes three fracture surfaces with Z2 roughness values of 0.21, 0.30, and 0.32, respectively. These surfaces were obtained via Brazilian splitting tests on fine-grained granite, sandstone, and coarse-grained granite, and each measures 15 cm in length and 7.5 cm in width.

本数据集包含三个断裂面，其Z2粗糙度（Z2 roughness）值分别为0.21、0.30与0.32。上述断裂面均通过对细粒花岗岩、砂岩及粗粒花岗岩开展巴西劈裂试验（Brazilian splitting tests）获得，且每个断裂面的尺寸均为长15 cm、宽7.5 cm。