高召宁;孟祥瑞;王辉;

• 1:煤矿安全高效开采省部共建教育部重点实验室
• 2:安徽理工大学能源与安全学院

摘要(Abstract)：

回采工作面煤层被采出以后,上覆岩层产生离层、断裂、垮落等运动,形成的冒落带和裂隙带范围对煤矿安全生产影响极大。以顾桥煤矿1116(1)综采工作面为工程背景,采用数值模拟和井下电法测试技术,研究了淮南矿区11-2煤层开采时覆岩移动破坏的规律。结果表明:在垂直方向上,采空区上方覆岩破坏分区特征明显,由下而上依次为双拉应力破坏区、拉伸裂隙区、剪切破坏区和未破坏区域;冒落带最大高度11.5¹4.5m,裂隙带最大高度4514.5m,裂隙带最大高度45⁴7.5 m;覆岩破坏最终形态类似于马鞍形,破坏在水平方向的范围要比开采区域大。

关键词(KeyWords)： 安全工程;电法;模拟分析;覆岩移动;覆岩破坏

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金委员会与神华集团有限公司联合资助项目(51174255);; 国家自然科学基金项目(51274008);; 中国博士后科学基金项目(2012T50567)

作者(Authors): 高召宁;孟祥瑞;王辉;

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