“三下”煤层安全高效开采技术研究

Research on safety and high efficiency mining technology of "three down" coal seam

我国"三下"煤层储量丰富,对其进行开采有利于减少煤炭的浪费,研究"三下"煤层的开采技术有重要意义。本文从煤层开采引起岩层下沉、移动出发,分析"三下"煤层的开采技术和安全高效开采需改善的问题,为"三下"煤层开采提供了一定依据。

Coal resources ＂three unders＂ in our country is rich, on its exploitation is conducive to reduce the amount of coal waste, it is important to study ＂three unders＂ coal seam mining technology, this paper from the stratum subsidence and mobile caused by mining ,the problems that need to improve were analyzed, the results provide a certain basis for＂three unders＂ coal seam mining.