煤矿安全2019，Vol.50Issue(1)：62-66,5.DOI:10.13347/j.cnki.mkaq.2019.01.015
基于三维激光扫描仪的岩石破裂面粗糙度研究
Study on Roughness Distribution Characteristics of Rock Fracture Surface Based on 3D Laser Scanner
摘要
Abstract
For a deeper understanding of the mechanism of rock failure, the failure loads of two groups of 24 cylindrical rock samples were measured by pressure and shear tests. Using a high precision 3D laser scanner to scan the fracture surface of the rock sample, the characteristics of fracture surface roughness distribution are respectively obtained after the compression failure and shear failure. The radius of curvature of cross section curve is obtained using statistical analysis. It reveals the correlation relationship between the curvature radius and roughness coefficient JRC, and the failure load of sandstone, respectively. The results show that the farther away from the load center, the smaller the JRC in uniaxial compression test. The curvature radius of the roughness curve has a linear positive correlation with JRC and the shear strength in the shear test.关键词
三维激光扫描仪/剪切强度/岩石破裂面/粗糙度曲线/曲率半径Key words
3D laser scanner/shear strength/rock fracture surface/roughness curve/radius of curvature分类
矿业与冶金引用本文复制引用
王学宁,闫帅,宋远霸,张涛,徐博彪..基于三维激光扫描仪的岩石破裂面粗糙度研究[J].煤矿安全,2019,50(1):62-66,5.基金项目
国家自然科学基金资助项目(51504142) （51504142）
山东科技大学人才引进科研启动基金资助项目(2017RCJJ013) （2017RCJJ013）
