浅埋深短长壁工作面矿压显现特征  

Characteristics of ground pressure at shallow short wall face

作　　者：任艳芳[1,2] 

机构地区：[1]煤炭科学研究总院开采设计研究分院,北京100013 [2]天地科技股份有限公司开采设计事业部,北京100013

出　　处：《辽宁工程技术大学学报（自然科学版）》2013年第1期29-32,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：国家科技支撑计划资助项目(2012BAB13B02);国家重点基础研究发展计划(973)资助项目(2010CB226806)

摘　　要：掌握浅埋深短长壁工作面矿压显现特征,采用现场观测和数值模拟方法对荣达煤矿试采工作面进行矿压显现特征研究,分析了浅埋深短长壁工作面矿压显现规律及覆岩结构特征.研究结果表明:由于采高及工作面长度等开采参数较小,短长壁工作面开采后对顶板岩层的破坏程度有限,基岩层并未全部断裂至地表,上覆岩层中仍然可以形成稳定的承载结构.In order to understand the characteristics of ground pressure at shallow short wall working face, this paper investigated the characteristics of ground pressure at a test face in Rongda coal mine through filed observation and numerical simulation, and analyzed the ground pressure occurrences and overlying rock structure features at short wall face. The results show that because the mining height and length of working face are small, the damage extent of overlying strata rock is limited after the short wall face mined. The damage of bedrock strata is not extended to surface, therefore, a stable bearing structure could be formed in the overlying strata rock.

关 键 词：浅埋煤层 短长壁工作面 矿压显现 覆岩结构 来压特征 承压拱 结构失稳 薄基岩 

分 类 号：TD325[矿业工程—矿井建设]