输煤巷道安全距离设计及其稳定性  

Safety Distance Design for Coal Handling Roadway and Its Stability

作　　者：王胜[1] 

机构地区：[1]辽宁建筑职业学院土木工程系,辽宁辽阳111000

出　　处：《煤矿安全》2014年第10期222-224,共3页Safety in Coal Mines

基　　金：辽宁省教育厅科学研究一般资助项目(L2013524);国家自然科学基金资助项目(51179031)

摘　　要：为掌握复杂因素作用下输煤巷道破坏和失稳原因,采用A.H.威尔逊法及FLAC3D有限差分软件,分析采空区和边坡开挖土体卸荷复杂因素对输煤巷道稳定性的影响,得出采空区本身对输煤巷道的影响不大,但边坡土体卸荷后,采空区与边坡土体的塑性区重合。在采空区与土体卸荷耦合作用下,塑性区扩展到左侧巷道,建议巷道施工时对左侧巷道进行重点支护,以确保矿区安全生产。In order to grasp the failure and instability reason of coal handling roadway under complex factors, we adopted A. H. wilson method and FLAC3Dfinite difference software to analyze the influence of gob and excavated soil in unloading slope on the stability of coal handling roadway. The results showed that gob has less impact on coal handling roadway, but the goal coincided with the plastic zone slope soil after unloaditag the slope. Under the coupling of gob and soil unloading, the plastic zone expanded to the left side of roadway. The left side of the roadway should be focused to ensure mine safety production when roadway was constructed.

关 键 词：输煤巷道 煤柱 A.H.威尔逊法 耦合作用 塑性区 安全距离 

分 类 号：TD322.4[矿业工程—矿井建设]