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Discussion on the Countermeasures of Prevention and Treatment of Pressure Bump in Yanbei Coal Mine

机译：延北煤矿防治对策探讨

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摘要

Pressure bump is a motive phenomenon with a sharp and fierce destructive because of sudden release of deformation energy when the original balance of rock mechanics around coal mine roadway was destroyed. It is one of the major disasters which threaten safe production of coal mine. Impact tendentiousness index which tests on the coal is an important index that distinguishes the extent of impact Based on a large amount of systematic and thorough impact tendentiousness index tests on the roof, floor and coal sample of coal seam in Yanbei Coal Mine, the paper identifies that the coal seam and the strata of roof and floor in Yanbei Coal Mine have medium impact tendentiousness and the impetus phenomena in Yanbei Coal Mine are pressure bump and it belongs to mediuM impact tendentiousness. The factors by analysis that affect the pressure bump in Yanbei Coal Mine include Changes of geological conditions, effect of coal seaM sublevel mining and effect of coal quality. The paper presents countermeasures of prevention and treatment, such as emphasizing forecasting and prediction, optimizing mining-district design and reducing the area where stress concentrates, coal seam water infusion and drilling and pressure relief.
机译：冲击地压是变形的能量突然释放时，各地煤矿巷道岩石力学原有的平衡被破坏的尖锐和激烈的破坏性，因为动机的现象。这是危及安全生产煤矿的主要灾害之一。其测试在煤冲击倾向性指数是一个重要的指标区分冲击的基于GIS的雁北煤矿，纸张识别煤层的顶板，底板和煤样大量的系统和彻底冲击倾向性指数测试的程度该煤层和顶底板的雁北煤矿地层具有中等冲击倾向性和雁北煤矿动力现象是压力凸块和属于中等冲击倾向性。通过分析影响冲击地压雁北煤矿的因素包括，煤炭质量的作用的地质条件的变化，煤层采分段的效果。预防和治疗的本文提出的对策，如强调预测和预测，优化采矿区设计和减少的区域中应力集中，煤层注水和钻井和压力释放。

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