Numerical simulation of asymmetric support technology in roadway excavation along goaf with large buried depth
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.
large burial depthfilling miningroadway excavation along goafasymmetric deformationtop cable arrangementhelp anchor cable layouteccentricity
国家科技期刊平台
NSTL
万方数据
维普
