基于灰色模糊理论的巷道锚网支护设计与优化  

Design and optimization of bolt and wire mesh support for a tunnel based on the grey-fuzzy theory

作　　者：周跃峰[1] 王金安[1] 胡建军[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083

出　　处：《北京科技大学学报》2007年第12期1177-1181,共5页Journal of University of Science and Technology Beijing

基　　金：教育部高等学校博士学科点专项科研基金资助项目(No.20040008025)

摘　　要：为解决采空区下薄顶煤巷道支护设计中所面临的各种力学问题,通过七因素三水平的正交实验方案,进行了27次数值模拟实验.按照三个评价标准,分别分析了各关键因素对巷道稳定性的影响,并筛选出相应的最优方案.利用灰色模糊理论对巷道支护方案进行了综合评价及整体优化设计.研究中考虑了支护费用及施工时间等成本性指标,分析了巷道支护后围岩的应力变化、位移特征和破坏机理,制定了可行的施工方案.所采用的支护技术在窑街煤电公司天祝矿正式投入使用后,取得良好的经济效益.In order to solve the mechanical problems during tunnel-supporting design under the mined gob with a thin roof coal seam, orthogonal experiments with 7 factors and 3 levels including 27 numerical simulations were carried out. The influence of the key factors on the tunnel stability was analyzed and corresponding optimized schemes were chosen according to 3 evaluation standards. The grey-fuzzy theory was utilized to make comprehensive evaluation and overall optimizing design. Cost factors such as supporting expense and construction time were considered during the study. The stress transformation, displacement character and failure mechanism of wall rock after support were analyzed, and a feasible construction plan was established. After utilizing the introduced supporting technique formally in Tianzhu Mining Zone of Yaojie Coal-electricity Inc. in China, favorable economical benefit is brought.

关 键 词：巷道 锚网支护 灰色关联 模糊理论 

分 类 号：TD322[矿业工程—矿井建设]