厚煤层矩形巷道应力分布及支护对策研究  

Study on supporting measures and stress distribution of thick coal rectangular roadway

作　　者：廖向阳 谭小华 李青锋[3] 

机构地区：[1]潞安环能股份有限公司五阳煤矿,山西长治046204 [2]湖南省煤业集团周源山煤矿,湖南郴州423404 [3]湖南科技大学煤矿安全开采技术湖南省重点实验室,湖南湘潭411201

出　　处：《矿业工程研究》2011年第1期1-6,共6页Mineral Engineering Research

基　　金：国家自然科学基金资助项目(50874042)

摘　　要：随着煤炭开采向深部发展,围岩地应力也越来越大,巷道断面积、形状的选择对于降低围岩集中应力和巷道变形尤其重要.首先采用复变函数方法构建矩形巷道的复应力函数,得出矩形巷道的围岩应力计算公式,从理论上分析了矩形巷道围岩应力的主要影响因素;然后以某一具体矿井的生产地质条件为背景,应用FLAC5.0数值模拟软件模拟分析不同巷道尺寸时的围岩应力分布情况,提出了巷道开挖后的支护对策.With the deep mining development of coal mining, ground stress is more and more high in surrounding rock, and it is especially important that the shape and section area of roadway is optimally selected for decreasing local stress concentration and deformation of surrounding rock. First of all, the complex stress function was constructed by complex function method, calculation formula was obtained for surrounding rock stress of rectangular tunnel, and its main influence factors was analyzed. Then, based on a specific productive geological conditions, distribution of surrounding rock stress of different roadway dimension was analyzed by FLAC5.0 numerical simulation software, and the supporting measures of excavated roadway was put forward.

关 键 词：矩形巷道 断面优化 复应力函数 数值模拟 

分 类 号：TD263[矿业工程—矿井建设]