文献类型：期刊文献

英文题名：Class Ratio Transform with an Application to Describing the Roughness Anisotropy of Natural Rock Joints

作者：Yong, Rui[1,2];Huang, Lei[3];Hou, Qinkuan[1];Du, Shigui[1,2]

机构：[1]Shaoxing Univ, Zhejiang Collaborat Innovat Ctr Prevent & Control, Shaoxing 312000, Zhejiang, Peoples R China;[2]Ningbo Univ, Sch Civil & Environm Engn, Ningbo 315211, Zhejiang, Peoples R China;[3]China Univ Geosci, Three Gorges Res Ctr Geohazards, Minist Educ, Wuhan 430074, Hubei, Peoples R China

年份：2020

卷号：2020

外文期刊名：ADVANCES IN CIVIL ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:000572082200001)、、Scopus(收录号：2-s2.0-85092493452)、WOS

基金：This study was funded by the National Natural Science Foundation of China (No. 41502300), Zhejiang Provincial Natural Science Foundation (No. LQ16D020001), and Zhejiang Collaborative Innovation Center for Prevention and Control of Mountain Geological Hazards (No. PCMGH-2017-Z03).

语种：英文

外文摘要：In this study, we explore the potential of class ratio transform with an application to describing the roughness anisotropy of natural rock joints. Roughness smooth coefficient, used for suitably smoothing the roughness parameter values to realize an anisotropic model, is proposed to represent the apparent anisotropy of surface roughness. The geometric irregularities of roughness parameters in polar plots allow transforming to a regular roughness asperity pattern, which can be readily approximated by the ellipse function. The joint roughness coefficients in different orientations of natural rock joints were measured and revealed to be identical after applying the smoothing process using the class ratio transform method. The results show that the roughness smooth coefficient increases with sample size but decreases as azimuthal interval narrows. This method demonstrates the ability in describing the roughness anisotropy and inferring the roughness parameters Z(2),R-p, and theta(max)*/(C+1)(2D).