煤炭与化工2024，Vol.47Issue(3)：37-39,3.DOI:10.19286/j.cnki.cci.2024.03.009
大埋深沿空掘巷非对称支护技术的数值模拟研究
Numerical simulation of asymmetric support technology in roadway excavation along goaf with large buried depth
杜乐乐1
作者信息
- 1. 冀中能源股份有限公司邢东矿,河北邢台 054000
- 折叠
摘要
Abstract
Aiming at the problem of large asymmetric deformation in the supporting process of goaf roadway in filling mining,the distribution characteristics of prestressed field under different supporting schemes were determined by numerical simulation with the case of No.11216 transport roadway in Xingdong Mine.The simulation results showed that,considering the support effect and cost comprehensively,the top cable arrangement was 3-3-3,the solid coal wall cable arrangement was double,and the coal pillar wall cable arrangement was single.The in-situ deformation observation results of surrounding rock showed that the support scheme could effectively control the deformation of roadway.关键词
大埋深/充填开采/沿空掘巷/非对称形变/顶锚索布置/帮锚索布置/偏心距Key words
large burial depth/filling mining/roadway excavation along goaf/asymmetric deformation/top cable arrangement/help anchor cable layout/eccentricity分类
矿业与冶金引用本文复制引用
杜乐乐..大埋深沿空掘巷非对称支护技术的数值模拟研究[J].煤炭与化工,2024,47(3):37-39,3.
