论文部分内容阅读
根据煤层赋存的水文地质条件和地形排水条件， 选择一合适的含煤块段超前进行多煤层集中开采， 有意识地在相应的地表形成一个较大的下沉盆地． 当周围煤层后续开采时， 新形成的下沉盆地中积水会自动或被疏导流入老盆地中， 使周围的农田不积水或少积水， 减少开采沉陷积水淹田的损失．
According to the hydrogeological conditions of the coal seam and the drainage conditions of the terrain, an appropriate coal-bearing block is selected for advanced mining of multiple coal seams, and a larger subsidence basin is consciously formed on the corresponding surface. When the coal seam surrounding the subsequent mining, the newly formed subsidence basin in the water will be automatically or diverted into the old basin, so that the surrounding farmland no water or less water, reducing subsidence mining subsidence flood water loss.