文献类型：期刊文献

英文题名：New Statistical Quantification Method for the Size Effect Behavior of Rock Mass Using Compressive Strength as an Example

作者：Huang, Man[1];Liu, Dan[1];Hong, Chenjie[2];Tao, Zhigang[2];Du, Shigui[3];Huang, Yixiao[4]

机构：[1]Shaoxing Univ, Dept Civil Engn, 508 Huancheng West Rd, Shaoxing 312000, Peoples R China;[2]China Univ Min & Technol Beijing, Sch Mech & Civil Engn, Ding 11 Xueyuan Rd, Beijing 100083, Peoples R China;[3]Ningbo Univ, Sch Civil & Environm Engn, 818 Fenghua Rd, Ningbo 315000, Peoples R China;[4]Zhejiang Univ Sci & Technol, Sch Sci, 318 Liuhe Rd, Hangzhou 310023, Zhejiang, Peoples R China

年份：2022

卷号：22

期号：11

外文期刊名：INTERNATIONAL JOURNAL OF GEOMECHANICS

收录：SCI-EXPANDED(收录号：WOS:000853874400005)、、EI(收录号：20223612692780)、Scopus(收录号：2-s2.0-85137142616)、WOS

基金：The study was funded by the National Natural Science Foundation of China (Grant No. 41427802) and the Natural Science Foundation of Zhejiang Province (Grant No. LY18D020003). This support is gratefully acknowledged.

语种：英文

外文关键词：Rock mass; Statistical method; True REV; Size effect law model; Uniaxial compressive strength

外文摘要：The statistical law on mechanical parameters of rock mass with size is the key to the study of the size effect. Since the existing statistical methods of the size effect only consider the continuity of the size but not the difference between the samples of each size, a new statistical method that considers single size and multisize is proposed. Based on the proposed method, the true representative elementary volume (TREV) value is used to determine the size effect stability threshold. Combined with the analysis of the three major size effect theories, the unified size effect law model and variation index k are proposed. The results are validated by statistical test data on the uniaxial compressive strength (UCS) obtained in realistic failure process analysis (RFPA) numerical test and from other works, which proves that the proposed method can reflect the variation law of UCS value with size and provide a basis for theoretical research on the size effect in mechanical behavior.