煤矿分层开采煤柱护巷方式数值模拟研究  

Research on Numerical Simulation of Coal Mine Slice Mining Pillar Protecting Roadway

作　　者：齐全 

机构地区：[1]汾西矿业集团中兴煤业,山西交城030500

出　　处：《山西焦煤科技》2015年第10期47-49,共3页Shanxi Coking Coal Science & Technology

摘　　要：以某矿分层开采为研究对象,结合数值模拟软件,分别建立上下层预留10 m煤柱模型,上层预留10 m煤柱、下层预留4 m煤柱模型和上下层都预留4 m煤柱模型3个数值计算模型,从煤柱的应力分布和破坏情况进行综合分析,研究表明:为保证煤柱应力集中程度较低,影响范围较小,受采动影响变化也较小,确定上、下煤层都留设4 m煤柱(无煤柱)方案为最优方案。A coal mine slice mining is as the research object,combines with the numerical simulation software,three numerical calculation models that upper layer and lower layer reserve 10 m pillar,upper layer reserves 10 m pillar and lower layer reserves 4 m pillar,upper layer and lower layer reserve 4 m pillar are set up respectively. The stress distribution and destruction of coal pillar are synthetically analyzed. The research shows that in order to ensure the lower pillar stress concentration degree,the limited scope of influence,and the smaller influence change by mining,determines that upper and lower coal seam reserving 4 m pillar is the optimal solution.

关 键 词：无煤柱护巷 分层开采 数值模拟 

分 类 号：TD323[矿业工程—矿井建设]