文献类型：期刊文献

英文题名：Research on Evolution Rule of Inclination Fracture Field and Support Technology in Close Distance and Inclined Coal Seam Mining

作者：Liu, Ping Liu, Huai-qian Ma, Qing Lu, Qing-he Liu, Mao-qi

第一作者：Liu, Ping

通信作者：Liu, HQ[1]

机构：[1]Guizhou Univ, Coll Min, Guiyang 550025, Guizhou, Peoples R China;[2]Shandong Univ Sci & Technol, Coll Min & Safety Engn, Qingdao 266590, Shandong, Peoples R China;[3]Guizhou Inst Technol, Coll Min, Guiyang 550003, Guizhou, Peoples R China

第一机构：Guizhou Univ, Coll Min, Guiyang 550025, Guizhou, Peoples R China

通信机构：corresponding author), Guizhou Univ, Coll Min, Guiyang 550025, Guizhou, Peoples R China.

年份：2019

卷号：37

期号：3

起止页码：2081-2090

外文期刊名：GEOTECHNICAL AND GEOLOGICAL ENGINEERING

收录：EI(收录号：20184706113289);Scopus(收录号：2-s2.0-85056742433);WOS:【ESCI(收录号:WOS:000465591800068)】；

基金：Funding was provided by Guizhou Science and Technology Department (Grant No. Qian Ke He LH Zi [2016] 7464th).

语种：英文

外文关键词：Close distance and inclined coal seam; "Triangular closed" structure; Roadway support; Load-bearing arch

摘要：This paper studies the evolution rule of inclination fracture field in close distance and inclined coal seams. It can fully understand the evolution rule and distribution characteristics of overlying strata in the coal cutting process. Taking the 21003 mining face of a mine in Guizhou as the engineering background, numerical simulation is used to simulate the evolution process of the overlying strata fracture field and deformation characteristics caused by the mining effect of the mining roadway during coal cutting. Finally, it is concluded that triangular closed structure at the bottom of mining face greater than upside during mining face, resulting in a large deformation of the roadway at the bottom of mining face; the composite support technology can effectively control the large deformation of surrounding rock roadway caused by the triangular closed structure.