文档介绍：第 26 卷第 6 期岩土力学
2005 年 6 月 Rock and Soil Mechanics Jun. 2005
文章编号:1000-7598-(2005) 06―0859―06
一次动压煤矿巷道预应力锚索支护设计与参数优化
高谦 1,刘福军 2,赵静 1
(,北京 100083;,山西阳泉 045000)
摘要:针对阳泉矿区一次采场巷道,采用正交数值分析方法和灰色理论中的关联度分析,进行了支护参数的优化决策。选
择了 8 因素 3 水平的正交数值试验方案,进行 18 次数值计算,研究了不同的一次动压条件(应力环境)和支护参数的巷道
稳定性与变形特征。在计算中,考虑了围岩锚固的“强度效应”,提出了锚固效应在数值计算中的实施方案;提出了巷道稳
定性和变形收敛率两类评价准则,确定了相应的局部优化方案。在此基础上,综合支护成本和施工难易程度等因素,采用了
灰色理论进行最佳方案的关联度分析,由此获得一次动压巷道的最优支护方案。该研究已应用于阳泉矿区一次采场巷道支护
设计,取得了较满意的支护效果。
关键词:煤矿巷道;一次动压;预应力锚索;优化设计
中图分类号:TD 353 文献标识码:A
Prestressed anchor supporting design and parameters
optimization for a coal tunnel affected by first mining
GAO Qian1, LIU Fu-jun2, ZHAO Jing1
( of Science & Technology of Beijing, Beijing 100083, China; Coal Corporation, Yangquan 045000, China)
Abstract: For the tunnel affected by first mining in Yangquan mining area, the thesis designed orthogonal experiments, analyzed the
results with the method of numerical simulation and optimized the supporting parameters by the means of associated analysis of grey
theory. The thesis selected the orthogonal experiments which needs 18 times numerical simulation including 8 factors with 3 levels
each one. According to the results, the thesis researched the tunnel stabilization and deformation in the condition of different stress
and su