提升煤矿井下安全管信息化水平实现性能稳定.docVIP

提升煤矿井下安全管理信息化水平实现性能稳定 煤矿的地质灾害主要表现为由于煤炭开采而造成的地表沉陷以及由此引发的地面建筑物的险情，煤矸石排放占用土地以及造成的污染，露天开采所造成的周边地面滑坡等。煤炭资源的开采对生态环境的破坏是严重的，煤矿关闭后留下的是满目疮痍。 The main geological disasters in coal mine is the surface caused by coal mining subsidence and ground buildings caused by this situation, emission of coal gangue occupied land, pollution, caused by the surrounding ground surface mining landslide. Destruction of the coal resources exploitation on the ecological environment is serious, coal mines shut down after leaving the see evidence of peoples distress everywhere. 每到雨季，煤矿事故频繁发生，很多煤矿事故都是发生在地下水活跃的煤矿地带和水库岸带。水的作用主要表现为对的软化、泥化作用、水的冲刷作用、静水压力和动水压力变化的影响等。煤矿边坡中的泥质岩层，在雨水渗人或地下水位升高而受到浸湿时就会软化，抗剪强度降低。页岩、凝灰岩、黏土岩等亲水性很强，水对其软化作用也很显著。水的冲刷作用使河岸变高、变陡；水流冲刷坡脚，切断滑动面下段都可使煤矿的抗滑阻力减小。由于雨水渗人、河水位上涨或水库蓄水等种种原因，使得地下水位上升，导致潜在滑体内动水压力升高。或者地下水由煤矿中排出时，水力梯度增大，均可以对煤矿稳定不利。此外，水库放水期间，库水位迅速下降，使得煤矿中的水不能及时排出，常导致库岸的滑动。地震对煤矿稳定性的影响主要包括以下几方面。从震源开始分布于地壳中的弹性振动，向周围介质传递时具有一定的加速度，因此便产生地震力，其数值等于加速度与物体质量的乘积。同时，地表物体和建筑物内部将产生一种与地震力大小相等、方向相反的惯性力，因此地震总会在煤矿内引起一种附加应力，这种附加应力存在的时间如同引起它的地震振动的延续时间一样，也是很短的，但足以导致整个煤矿的失稳。此外，地震还会使饱水的砂质煤矿因振动液化而移动，使抗滑力减小。根据当地的调查情况，把影响煤矿稳定性的因素按其在煤矿变形破坏中的作用大小排序，并分出等级。同时，对每一个因素也根据各地段条件差异分若干档次。 Every rainy season, the frequent occurrence of coal mine accidents, many coal mine accidents occur in active coal zone and groundwater reservoir bank zone. The role of water is mainly on softening, argillization, water erosion, the hydrostatic pressure and the influence of hydrodynamic pressure change etc.. Coal mine slope in argillaceous rock, in the rain or the rise of groundwater level by softening will be wet, the shear strength reduction. Shale, tuff, clay rock, a strong hydrophilic, water on the softening effect is also very significant. The erosion of water make the banks of high, steep; flow scouring slope sliding surface, cut off the lower section can make mine skid resistance decreases. Due to rain infiltration, Kawa Mikui rose or reservoir storage and other reasons, makes the rise of ground water level, resulting in potential