在矿井中做好防水排水工作,是保证矿井安全生产的重要一环。矿井的防水和排水分地面与井下两部分,现分述如下。一、地面的防水和排水措施。1.拦洪坝与排洪沟。当矿区地形较高时,可在矿层露头外修砌拦洪坝或排洪沟截洪,防止山洪流入矿区。特别是地势低平、天然水系 Doing waterproof drainage work in the mine is an important part of ensuring safe production of the mine. Mine waterproofing and drainage are divided into two parts, the ground and the downhole, which are described below. First, the ground waterproof and drainage measures. 1. Flood dams and flood discharge trenches. When the topography of the mining area is relatively high, flood protection dams or flood discharge trenches can be constructed outside the outcrop of the mine to prevent floods from flowing into the mining area. Especially low-lying, natural water systems