波纹度
地质学
表面光洁度
几何学
剪切(地质)
曲面(拓扑)
表面粗糙度
直剪试验
结构工程
接头(建筑物)
材料科学
岩土工程
机械
数学
复合材料
工程类
物理
岩石学
作者
Hang Lin,Zheyi Xiong,Taoying Liu,Ping Cao,Ping Cao
标识
DOI:10.1016/j.ijrmms.2013.12.010
摘要
The 3D reconstruction of rock joint surfaces is crucial for quantifying rock joints. Through the uniform discretization of 2D and 3D rock joints, it was determined that both the climbing angles along the shear direction and the projection lengths of the consecutive ascending/descending segments follow normal distributions. This statistical distribution of climbing angles and projection lengths provides an important reference for rock joint reconstruction, although hypothesis testing indicated that some joint profiles/surfaces do not follow normal distributions. A normal distribution-based method and a bubbling method were used to reconstruct the 2D joint profiles. The bubbling method demonstrated good applicability for the generation of 3D rock joint surfaces, especially because it included surfaces with different roughness in two orthogonal directions. Therefore, ten typical 3D rock joint surfaces were reconstructed using the bubbling method, where both the size of asperities (waviness or unevenness) and the joint roughness coefficient values were quantified. To reconstruct a joint surface with a certain roughness coefficient, scaling the elevation of a generated surface was demonstrated as an effective supplementary approach.
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