一、水文地质概况 青山泉矿区位于徐州东部煤田的西北边缘,现有二、三号并两对斜井生产。二号井为箕状向斜,三号井为缓状沟槽式向斜盆地,北、西为古生代寒武、奥陶两纪灰岩露头组成的低山环抱,东、南为准平原。 我矿开采系上石炭纪太原群(屯头系)17、20、21计三层煤层,太原群地层含13层石灰岩,厚度为1—2米,总厚45.3米。各层灰岩溶洞裂隙发育,透水性强,含水丰富。 I. Overview of Hydrogeology The Qingshanquan Mine is located on the northwest edge of the coalfield in the east of Xuzhou. The existing No. 2 and No. 3 inclined shafts are also produced. Well No. 2 is a half-way syncline. Well No. 3 is a gentle trenching syncline basin. The north and west are surrounded by low mountains formed by the Paleozoic Cambrian and Ordovician limestone outcrops. The east and south are in the same plain. My mining department is on the Carboniferous Taiyuan (Tuen Tau) 17,20,21 total three coal seam, the Taiyuan group contains 13 layers of limestone, a thickness of 1-2 meters, a total thickness of 45.3 meters. Various layers of limestone cave fissures development, water permeability, rich in water.