摘要
针对新矿集团新巨龙煤矿-800 m水平托顶煤巷道围岩变形破坏严重的问题,通过现场调研,得出了该类巷道变形破坏特征,顶板变形破坏明显高于两帮。基于数值模拟,探讨了托顶煤巷道围岩的塑性破坏范围,提出了高强度锚网索联合支护,确定了支护参数,并将锚网索联合支护应用于现场,取得了较好支护效果,为此类托顶煤巷道的支护设计提供了借鉴。
According to the serious problem of Xinwen mining group, Xinjulong coal mine -800 m level of top-coal deformation of surrounding rock, through field investigation, the roadway deformation and failure characteristics is obtained that the characteristics of roadway deformation and roof deformation damage is significantly higher than two sides coal walls.Based on numerical simulation, discusses the range of plastic failure of roadway surrounding rock of the top-coal and puts forward the high strength of anchor wire rope combined support, determines the support parameters, and the applying of anchor wire rope combined support to field application, obtains a good supporting effect, with such caving roadway supporting design provides reference.
出处
《煤炭技术》
CAS
北大核心
2016年第3期81-83,共3页
Coal Technology
关键词
深部
托顶煤巷道
数值模拟
支护
deep
top coal roadway
numerical simulation
support
