文献类型：期刊文献

英文题名：Study on Cross Main Tunnel Mining Next to Large Fault Structure

作者：Wang, Shuli Zhu, Guangli Zhang, Kaizhi

第一作者：Wang, Shuli

通信作者：Zhu, GL[1]

机构：[1]Shandong Univ Technol, Sch Resources & Environm Engn, Zibo 255000, Peoples R China;[2]Guizhou Inst Technol, Guiyang 550003, Peoples R China

第一机构：Shandong Univ Technol, Sch Resources & Environm Engn, Zibo 255000, Peoples R China

通信机构：corresponding author), Shandong Univ Technol, Sch Resources & Environm Engn, Zibo 255000, Peoples R China.

年份：2021

卷号：39

期号：4

起止页码：3239-3248

外文期刊名：GEOTECHNICAL AND GEOLOGICAL ENGINEERING

收录：EI(收录号：20210509852674);Scopus(收录号：2-s2.0-85099949122);WOS:【ESCI(收录号:WOS:000613184800001)】；

基金：This research was supported by National Natural Science Foundation of China (51904177) and Shandong Natural Science Foundation (ZR2019BEE078).

语种：英文

外文关键词：Fault structure; Cross main tunnel mining; Coal pillar; Numerical simulation

摘要：Fault structure cut continuity of coal seam, inducing rock burst accident and mine water disaster easily, which bring serious threat to coal resources mining. Working face layout is very important, when next to fault structure and cross main tunnel mining. Based on a mining technical problem in Hongqi coal mine (Jining China), which 3161 working face next to large normal fault F6-2 and cross main tunnel mining, using methods of theoretical analysis and numerical simulation to study the above technical problem. Main research works are as follows: (1) With theory of mining stress distribution, calculate the minimum safety rock pillar thickness, and contrast with the thickness of floor strata, determine feasibility of cross main tunnel mining. (2) According to elastic-plastic failure theory of coal pillar, determine the critical width of coal pillar to keep stable. (3) Using FLAC(3D) to establish numerical model of 3161 working face mining, analyze distribution and evolution of mining stress. Research results could give a guidance to cross main tunnel mining next to fault structure.