赵各庄矿关井后井下水位控制及对周边矿井的影响评价

Underground water level control and influence evaluation on surrounding mines after Zhaogezhuang mine shut-in

煤矿停产关井后,矿井开采形成的地下空间还会继续流出地下水。停止排水后,井下水位在自然压力作用下逐步上涨,并恢复到一定高度。开滦赵各庄矿与林西矿相邻相通,当赵各庄矿井地下水的水位上升至-570 m后,将通过沟通地点进入林西矿。需要保持赵各庄矿上部水平排水,以控制井下水位高度,防止影响相邻矿井安全。实现对赵各庄矿井下水位的有效监测,是控制好井下水位的必要措施。本文通过对赵各庄矿水文地质条件、矿井淹没情况、井下水位监测和邻矿井下涌水量的研究,计算了赵各庄矿关井后下部水平的涌水量,分析评价了赵各庄矿关井后保持上部排水条件下对相邻矿井的影响。

After coal mine shut-in,underground water would continue to flow out from the underground space formed by mining.After drainage stop,the underground water level would rise gradually under natural pressure and be restored to a certain height.Kailuan Zhaogezhuang mine and Linxi mine were adjacent to each other.When the underground water level of Zhaogezhuang mine rised to-570 m,the underground water would enter Linxi mine through the communication site.It was necessary to keep the upper horizontal drainage of Zhaogezhuang mine to control the underground water level and prevent the adjacent mines safety from being affected.Realization of effective monitoring the underground water level in Zhaogezhuang mine was a necessary measure to control the underground water level.According to the study of hydrogeological conditions,mine inundation conditions,underground water level monitoring and adjacent mines water inflow in Zhaogezhuang mine,the paper calculated the lower horizontal water inflow of zhaogezhuang mine after shut-in,and analyzed and evaluated the influence on adjacent mines of maintaining upper drainage condition after shut-in.