淹井矿井井筒排水试验方案

摘要

板集煤矿由于副井井筒发生突水事故造成井下巷道和主井、副井和风井井筒全部淹没，被泥砂和水充填。在治理过程中先后采取了井筒内抛填石子、井筒周围探查地层、地面注浆、冻结等治理方案措施，在冻结壁达到一定程度后将开始对井筒进行排水。由于目前在国内外均无类似案例经验可以借鉴，而在排水及后续的清淤过程又可能存在因前期治理不到位出现威胁井壁以及施工人员安全的因素，因此制定科学合理的方案尤为重要。该方案通过对前期治理过程中的地质、水文现象进行科学分析，合理确定了排水试验的方式以及获取的水文地质参数，能够为后续的排水工作提供指导依据。%Due to water inrush accidents caused by underground tunnel air shaft,the main shaft of Banji coal mine and its shaft auxiliary were submerged,with mud and sand and water filled in.In the process of governance,it has taken the wellbore to throw fill stones,around the wellbore formation,exploration,and frozen ground grouting treatment scheme of measures.The frozen wall to a certain extent will begin drainage on wellbore.Because currently both at home and abroad,there are no similar cases from which the experience can be learnt,and may be in the drainage and dredging processes subsequent exist because early governance is not in place with the factors threatening the wall as well as the safety of construction workers.Therefore,it is important to make a scientific and reasonable plan.Through the scientific analysis of geological,hydrological phenomena in the process of pre -treatment,reasonable drainage test mode and obtaining hydrogeological parameters are determined,which can provide guidance for the drainage of the follow -up job.