采矿与安全工程学报2011,Vol.28Issue(4):576-580,5.
回采巷道锚杆支护效果模糊综合评判
Fuzzy Comprehensive Evaluation of Bolt Support Effects in Deep-Mining Gateway
摘要
Abstract
Bolt support has become the main form of surrounding rock control in deep-mining gateway. Good or bad supporting effect, is related not only to the support patterns, but also to the surrounding rock properties and mining conditions. To evaluate the bolt support effect in gateway accurately, taking the gateways in Pingdingshan MiningArea as the research object, 32 deep-mining gateways are selected as samples to study in this paper. Based on seven indexes such as surrounding rock strength, support strength, gateway depth, surrounding rock integrity, mining influence, gateway section and coal pillar width, etc, the bolt support effects in gateway can be divided into four kinds including better, good, common and poor by the fuzzy clustering analysis. Based on the above method, the bolt support effect in new driving gateway is pre-evaluated under given conditions, which provides the basis for bolting parameters, determination.关键词
回采巷道/锚杆支护/围岩稳定/模糊聚类Key words
gateway/bolt support/ surrounding rock stability/ fuzzy clustering分类
矿业与冶金引用本文复制引用
申艳梅,韦四江..回采巷道锚杆支护效果模糊综合评判[J].采矿与安全工程学报,2011,28(4):576-580,5.基金项目
国家自然科学基金项目(50874037) (50874037)