覆岩移动特性的数值模拟及其在煤矿安全中的应用

煤与瓦斯突出是煤矿生产中的主要事故之一，特别是在高瓦斯煤层群条件下，如何消除煤与瓦斯突出危险性对实现煤与瓦斯的安全高效共采是非常重要的。文中根据某矿具体地质条件，利用数值模拟方法，模拟了首采煤层的开采对远程卸压煤层的卸压作用，结合大量现场实测数据，论证了对远程卸压瓦斯进行抽放从而实现在高瓦斯煤层群开采条件下煤与瓦斯安全高效共采的可行性。

Numerical simulation of movement characteristics of rock seams above the initial coal seam and its application in the safe production of coal mine

It is very important to eliminate the outburst danger and to realize the safe high-efficient exploitation of coal and gas especially in high-gas coal seams because the outburst of coal and gas is one of the main accidents in coal production. This article simulates the pressure-relief effect of the coal seams in long-distance after the initial coal seam is mined by using the software of ANSYS according with the factual geologic conditions of a mine. At the same time it demonstrates the feasibility of the long-distance pressure relief gas extraction and the safe high-efficient exploitation of coal and gas together in high-gas coal seams combining with a great deal of local data.