文献类型：期刊文献

英文题名：The Influence of Fracture Strain Energy on the Burst Tendency of Coal Seams and Field Application

作者：Guo, Hongjun Ji, Ming Liu, Dapeng Liu, Mengxi Zhao, Weisheng

第一作者：Guo, Hongjun

通信作者：Ji, M[1]

机构：[1]Jiangsu Vocat Inst Architectural Technol, Xuzhou 221116, Jiangsu, Peoples R China;[2]China Univ Min & Technol, Sch Mines, Key Lab Deep Coal Resource Min, Minist Educ China, Xuzhou 221116, Jiangsu, Peoples R China;[3]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, Sch Mines, Key Lab Deep Coal Resource Min, Minist Educ China, Xuzhou 221116, Jiangsu, Peoples R China.

年份：2021

卷号：2021

外文期刊名：ADVANCES IN CIVIL ENGINEERING

收录：;Scopus(收录号：2-s2.0-85104913046);WOS:【SCI-EXPANDED(收录号:WOS:000662888800006)】；

基金：+is study was supported by the Jiangsu University Natural Science Research Project (20KJB560032), Jiangsu University Natural Science Research Project (Key) (18KJA560001), Guizhou Science and Technology Plan Project (Guizhou Science and Technology Cooperation Support ([2019]2882) and Guizhou Science and Technology Cooperation Platform Talents ([2017]5789-12)), Xuzhou Science and Technology Project (KC17156), Jiangsu Construction System Science and Technology Project (Guidance) (2020ZD30, 2019ZD080, and 2019ZD070), and Educational Science Research Project (Key) (ES2020-6). +e authors thank Esther Posner, PhD, from Liwen Bianji, Edanz Editing China (http://www.liwenbianji.cn/ac), for editing the English text of a draft of this manuscript.

语种：英文

摘要：Coal is typically considered a special engineering rock mass because of its low strength, high internal fracture development, good permeability, and random distribution of microparticles and fractures. The results of cyclic loading and unloading tests indicate that the strain energy during the coal deformation process can be divided into three parts: plastic strain energy; fracture strain energy; and base-material strain energy. The energy composition ratio differs depending on coal strength. Lower proportions of fracture strain energy are associated with higher elastic energy indexes, and there is a negative correlation between fracture strain energy and other coal burst tendency indexes. The results were applied on the 4206 isolated island working face of coal mine A in Yan'an, Shanxi, China, yielding good benefits. The findings presented here provide a theoretical basis for understanding the principle of coal seam bursting and guidance for reducing burst risks.