基本顶岩层断裂位置对沿空掘巷影响分析  

Influence on Gob-side Entry Driving by Strata Fracture Position of Basic Roof

作　　者：王帅[1] 桂兵[2] 王红红[1] 吴修光[2] 刘浩[1] 

机构地区：[1]山东科技大学矿业与安全工程学院,山东青岛266590 [2]兖州煤业股份有限公司济宁三号井煤矿,山东济宁272169

出　　处：《煤矿开采》2016年第3期68-70,共3页Coal Mining Technology

基　　金：国家自然科学基金项目(51374139);山东省自然科学基金项目(ZR2013EEM018)

摘　　要：为研究基本顶断裂位置对窄煤柱和沿空巷道稳定性的影响,建立了沿空巷道基本顶断裂结构力学模型,通过UDEC非线性数值模拟软件,对3种模型进行了模拟研究。研究表明:当基本顶断裂线位于巷道正上方时,巷道围岩变形和煤柱应力较大,不利于沿空巷道的维护;当基本顶断裂线位于煤柱外侧时,沿空巷道实体煤帮变形较小,是巷道维护的有利位置。In order to studying influence on narrow coal pillar and gob-side entry stability by fracture position of basic roof, fracture mechanic model of gob-side entry was built, then three different models were studied on the basis of UDEC nonlinear numerical simula- tion software. The results showed that surrounding rock deformation of entry and coal pillar stress were all large, when fractured line of basic roof located up on the roadway, its disadvantage for god side entry maintenance, but coal side of god side entry deformation was smaller when fractured line of basic roof located out of coal pillar scope, its better for entry maintenance.

关 键 词：基本顶 断裂位置 沿空掘巷 数值分析 窄煤柱 

分 类 号：TD322.1[矿业工程—矿井建设]