煤柱宽度对综放回采巷道围岩力学特征影响分析  

Analysis on coal pillar width influenced to mechanics characteristics of surround rocks in fully mechanized coal mining gateway

作　　者：杨科[1] 王树全[2] 刘全明 

机构地区：[1]安徽理工大学,安徽淮南232001 [2]淮南矿业集团谢桥煤矿,安徽淮南232001 [3]煤炭科学总院北京开采研究所,北京100013

出　　处：《煤炭工程》2005年第12期50-52,共3页Coal Engineering

摘　　要：依据谢桥煤矿1151(3)综放工作面工程地质及开采技术条件,在对影响该条件回采巷道护巷煤柱宽度的因素分析基础上,应用计算机数值模拟(FLAC2D),模拟并分析了不同煤柱宽度煤柱及巷道围岩在回采期间的应力分布及变形情况,获得了不同煤柱宽度巷道围岩在回采期间的力学特征,为综放开采回采巷道煤柱宽度的合理留设、支护参数选择、巷道围岩稳定性控制及安全生产提供理论依据。According To the geological and mining technical conditions of the No. 1151 （3） fully mechanized top coal caving mining face in Xieqiao Mine and base on the analysis on the factors affected to the width of coal pillars protected to the mining gateway, the paper simulated and analyzed the different width coal pillars and the stress distribution and deformation of the surrounding rocks in the mining gateway with the computer numerical simulation （FLAC2D） The mechanics features of the gateway surrounding rocks with different coal pillar widths were obtained, which would provide the theoretical basis for the rational setting of the coal pillar width, support parameter selection, stability control of the gateway surrounding rock of the mining gateway and for the economic production.

关 键 词：综放 回采巷道 煤柱宽度 数值分析 

分 类 号：TD822.3[矿业工程—煤矿开采]