杨村煤矿下组薄煤层底板采动效应特征研究  

Study on the Floor Mining Effect Characteristics Under Group Thin Seam in Yangcun Coal Mine

作　　者：黄震[1] 姜振泉[1] 朱术云[1] 段宏飞[1] 张蕊[1] 王杰 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221116 [2]汾西矿业集团曙光煤业(有限)责任公司,山西孝义032300

出　　处：《煤矿安全》2012年第7期45-48,共4页Safety in Coal Mines

基　　金：中国矿业大学青年科研基金资助项目(2009A029);江苏省研究生培养创新工程资助项目(CXZZ11-0306)

摘　　要：杨村煤矿下组煤的开采受到底板承压水的威胁,采动底板破坏深度的研究是底板岩层阻水能力评价的关键。以杨村煤矿4602工作面水文地质条件为基础,建立了下组薄煤层底板工程地质模型,通过数值模拟软件FLAC3D模拟研究煤层底板采动变形破坏规律,得出在正常采动情况下底板最大破坏深度约为12 m;并与该工作面底板实测结果进行了对比验证,二者结果基本一致。研究结果为杨村煤矿下组煤的合理开采、支护及底板岩层阻水性的评价提供了参考依据。The safe mining of under -group coal seam in Yangcun coal mine has been seriously threatened by confined water under floor. Therefore, the study of failure depth of mining floor is the key to evaluate the water - resisting ability of floor. Based on the hydro- geological conditions at 4602 working face in Yangcun coal mine, the engineering geological model of under - group coal seam floor was set up. Studying on the deformation and failure laws of coal seam floor mining by FLAC3D ,the maximum failure depth of floor is about 12 m under nomal mining condition. Compared with the working face floor measured results, the two results are in agreement. The re- sults provide reference for rationally mining of under - group coal seam and calculating the indexs of water - resisting ability of floor in Yangcun coal mine

关 键 词：带压开采 工程地质模型 变形机理 数值模拟 现场实测 

分 类 号：TD322.1[矿业工程—矿井建设]