文献类型：期刊文献

英文题名：ROADWAY SUPPORT DESIGN BASED ON IN-SITU STRESS AND ITS ASYMMETRICAL DISTRIBUTIONS IN A COAL MINE

作者：Guo, Hongiun Ji, Ming Zhao, Weisheng

第一作者：Guo, Hongiun

通信作者：Ji, M[1];Ji, M[2]

机构：[1]Jiangsu Vocat Inst Architectural Technol, Xuzhou 221116, Jiangsu, Peoples R China;[2]China Univ Min & Technol, State Key Lab Coal Resources & Safe Min, Xuzhou 221116, Jiangsu, Peoples R China;[3]China Univ Min & Technol, Key Lab Deep Coal Resource Min, Minist Educ China, Xuzhou 221116, Jiangsu, Peoples R China;[4]Sch Mines, Xuzhou 221116, Jiangsu, Peoples R China;[5]Guizhou Inst Technol, Inst Min Engn, Guiyang 550003, Peoples R China

第一机构：Jiangsu Vocat Inst Architectural Technol, Xuzhou 221116, Jiangsu, Peoples R China

通信机构：corresponding author), China Univ Min & Technol, Key Lab Deep Coal Resource Min, Minist Educ China, Xuzhou 221116, Jiangsu, Peoples R China;corresponding author), Sch Mines, Xuzhou 221116, Jiangsu, Peoples R China.

年份：2020

卷号：65

期号：2

起止页码：299-315

外文期刊名：ARCHIVES OF MINING SCIENCES

收录：;Scopus(收录号：2-s2.0-85090726904);WOS:【SCI-EXPANDED(收录号:WOS:000540533200008)】；

基金：This paper is supported by Guizhou Science and Technology Plan Project (Guizhou Science and Technology Cooperation Support [2019]2882, Guizhou Science and Technology Cooperation Foundation [2018]1061, Guizhou Science and Technology Cooperation Platform Talents [2017]5789-12), Youth Science and Technology Talent Growth Project of Guizhou Education Department (Guizhou Education Combined KY Character [2017] 219), and the Fundamental Research Funds for the Central Universities (Grant No. 2017XKQY044).

语种：英文

外文关键词：in-situ stress; the stress in the rock surrounding roadway; the displacement in the rock surrounding roadway; the plastic zone in the rock surrounding roadway; support parameters

摘要：Through in-situ stress measurements, stress data were obtained from an auxiliary transportation roadway in a coal mine in Shanxi Province, China. Based on the principles of elastic mechanics and using a generalized plane strain model, the mechanical effects of the in-situ stresses on an idealized roadway were calculated and the distributions of stresses, displacements, and plastic zones determined. Building on this model, the vulnerable zones in the roadway cross section were identified. Ground support specifications were developed and during specification design, comprehensive consideration was given to factors affecting the stability of the rock surrounding the roadway. A scientific and reasonable support scheme was put forward. Practical experience in the coal mine shows the normal forces of anchor bolt and cable, the minimal convergence of roof to floor, and a generally good support in the auxiliary transportation roadway. The support should ensure safe production during its service life. This study provides a new method for designing roadway support systems that can be particularly valuable for high-stress roadways.