文献类型：期刊文献

英文题名：Evaluation method of local failure characteristics for joint based on white light scanning technology

作者：Song, Leibo[1,2];Zhang, Dan[1,2];Wang, Gang[1,2];Du, ShiGui[3];Hu, Gaojian[1,2];Han, Guansheng[1,2];Wang, Xingkai[1,2];Liu, Xiqi[4]

机构：[1]Shaoxing Univ, Sch Civil Engn, Shaoxing 312000, Peoples R China;[2]Shaoxing Univ, Key Lab Rock Mech & Geohazards Zhejiang Prov, Shaoxing 312000, Peoples R China;[3]Ningbo Univ, Sch Civil & Environm Engn, Ningbo 315211, Zhejiang, Peoples R China;[4]Wuhan Univ, Sch Civil Engn, Key Lab Geotech & Struct Engn Safety Hubei Prov, Wuhan 430070, Peoples R China

年份：0

外文期刊名：NATURAL HAZARDS

收录：SCI-EXPANDED(收录号：WOS:000871521500001)、、Scopus(收录号：2-s2.0-85140404135)、WOS

基金：This work was funded by the National Natural Science Foundation of China (Grant No. 42002275), Natural Science Foundation of Zhejiang Province (Grant No. LQ21D020001, LQ21E040003), the China Postdoctoral Science Foundation (Grant No. 2021M692319) and Hubei Key Laboratory of Roadway Bridge and Structure Engineering (Wuhan University of Technology) (Grant No. DQJJ202104).

语种：英文

外文关键词：Rock joint; 3D White light scanning technology; Shear failure characteristics; Joint morphology

外文摘要：Joint is an important factor affecting the stability of engineering rock mass. To quantitatively analyze the local failure characteristics, the point cloud data of joint before and after shear were obtained by 3D white light scanning technology. Firstly, the problem of cloud surface skew of point cloud data was solved by constructing rotation matrix and translation matrix, and the datum of joint was determined. Then, according to the marked points and the undamaged area, the joint point cloud data before and after shear are aligned, and the point cloud data with equal spacing were obtained by interpolation algorithm. Finally, a 3D description method of joint local failure characteristics is proposed. The proposed method can determine the scope of surface failure of joint, quantitatively analyze the locality of its failure characteristics, provide data support for distinguishing the types of shear failure and offer theoretical basis for further research on shear mechanism.