减小高潜水位矿区开采沉陷积水淹田的有效途径

A effective way to prevent damage of farmland due to mining

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 conditions of the coal seam and the ground form, a ground subsidence basin is formed due to concentrated extracting in mining areas. When the around coal seams are extracted,the water in the new subsidence basin can be collected to the old one and protect the farmland.This is successfully tested in Hunchun mining area.