文献类型：期刊文献

英文题名：Simulation Study on the Size Effect of Secant Modulus of Rocks Containing Rough Joints

作者：Sun, Mingzhi[1,2];Hu, Gaojian[3];Hu, Jianli[4];Zhang, Huanqing[5];Li, Yu[3];Wang, Weiping[1,2];Zhang, Guangbin[6]

机构：[1]Sinosteel Maanshan Gen Inst Min Res Co Ltd, State Key Lab Safety & Hlth Met Mines, Maanshan 243000, Peoples R China;[2]Natl Engn Res Ctr Huawei High Efficiency Cycl Util, Maanshan 243000, Peoples R China;[3]Shaoxing Univ, Sch Civil Engn, Shaoxing 312000, Peoples R China;[4]Shangdong Gold Design Consulting Co Ltd, Yantai 264100, Peoples R China;[5]Nat Resources & Planning Bur Yishui Cty, Yishui 276400, Peoples R China;[6]Yantai Blue Ocean Mine Engn Design Co Ltd, Yantai 264100, Peoples R China

年份：2022

卷号：14

期号：23

外文期刊名：SUSTAINABILITY

收录：SSCI(收录号：WOS:000897453500001)、SCI-EXPANDED(收录号：WOS:000897453500001)、、Scopus(收录号：2-s2.0-85143784948)、WOS

基金：This work was supported as follows: Large parameter continuous mining technology for deep thick and large orebody (2022YFC2904101), Yantai Blue Ocean Mine Engineering Design Co., Ltd. entrusted project (K22-01430000-011), Shenyang Research Institute of China Coal Technology and Engineering Group entrusted project (K22-01430000-002), Zhejiang Collaborative Innovation Center for Prevention and Control of Mountain Geological Hazards (PCMGH-2017-Y-05), Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province (ZGRMG-2019-07).

语种：英文

外文关键词：roughness; secant modulus; size effect; mathematical model; characteristic secant modulus

外文摘要：The secant modulus reflects the ability of rocks to resist deformation, and it is mostly used to evaluate rock strength and deformation evolution. Due to the existence of rough joints in rocks, the secant modulus changes according to rock size. Therefore, it is very important to effectively obtain the secant modulus to evaluate rough-jointed rock deformation. In this paper, the regression analysis method is used, and 25 sets of simulation models are set up to discuss the influence of joint roughness and rock size on the rock secant modulus. The research shows that the secant modulus increases exponentially with the increase in rock size, and it increases as a power function with the increase in joint roughness. The characteristic size of the secant modulus increases exponentially with the increase in joint roughness, also as a power function. This paper gives the specific forms of these four relationships. The establishment of these relationships enables the prediction and calculation of the secant modulus and provides guidance for rock deformation analysis.