梅河矿区的一井和二井在厚含水砂砾层下开采缓倾斜和倾斜的特厚煤层。采厚已达16米,裂隙带距砂砾层底板只剩6米(砂砾层与基岩之间无隔水层),采区涌水量始终保持1—3米~3/时之间,采煤工作面无淋水。目前已经成功的开采了4个采区,采出煤炭150万吨。近十年来在梅河一井共打了35个三带高度钻孔,分别对四个采区的1、2、3、4、6、7、8等人工分层进行了观测,获得了以下几项成果; 1、证实了裂隙带的峰区沿着采区周 One well and two wells in the Meihe mining area exploit gently inclined and inclined thick coal seam under thick water-bearing gravel layer. Mining thickness has reached 16 meters, the gap with gravel from the floor only 6 meters (gravel and bedrock without aquifuge), the mining area water inflow has remained between 1-3 m ~ 3 / h, coal mining Face without water. At present, four mining areas have been successfully mined and 1.5 million tons of coal have been mined. In the last ten years, a total of 35 three-zone drilling holes were drilled at Meihe Well, the artificial stratification of 1, 2, 3, 4, 6, 7, 8 and so on in the four mining areas were observed respectively. Results; 1, confirmed that the crack zone peak area along the mining week