摘要
以宁夏石沟驿煤矿运输巷锚网支护为背景,进行了支护参数正交试验设计,运用UDEC数值计算,并通过"极差分析法"分析寻找出关键参数.研究表明:影响松软破碎煤巷锚网支护效果的敏感因素是锚杆长度和间排距.借助灰色模糊关联理论分析,综合考虑围岩变形和锚杆用钢量,最终获得经济合理的巷道整体优化支护方案.
Based on the cable-mesh support for roadway in Shigouyi Coal Mine, the orthogonal design and UDEC modeling were carried out. Throughout ＂maximum difference analysis＂ the key influence factors were recognized. The study shows that the sensitive factors in influence of the bolt-mesh support in the crushed and soft roadway are the length and the interval of the bolts. By grey-fussy relevance analysis, the integrated optimum support scheme was obtained in consideration of the deformation of the surrounding rocks and the amount of the steel used for bolts.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2009年第8期1037-1042,共6页
Journal of China Coal Society
关键词
煤巷
锚网支护
参数识别
优化
模糊理论
roadway
bolt-mesh support
parameter discernment
optimization
fussy theory
