露天煤矿采空区及火区探测的技术研究

摘要

Because of destruction from the small coal pit excavation in Yanjiagou open-cut coal mine,goaf and fire area are more,the scope is unknown,has a great influence on open-pit mining.Find out the specific area,in order to take preventive measures in advance in the production,for mining safety and improving the coal recovery rate of the goaf is of great significance.Discusses by using the high-density resistivity method detecting and drill hole de-tecting the goaf.Compare two kinds of detection results.Ensure that do not leave any corner in the process of ascer-taining abandoned roadway,fire area and water.And puts forward after determine the specific location of goaf and fire area,the blasting and filling method and mud grouting method is adopted for treatment of goaf and fire area.%闫家沟露天煤矿因小煤窑采掘破坏，采空区及火区多，范围不详，对露天采煤影响很大。查明这些特殊区域，以便在生产中提前采取预防措施，对采矿安全及提高采空区的煤炭回收率具有重要意义。论述了采用地面高密度电法探测和钻机穿孔探测采空区，将两种探测成果进行对比，确保在探明空巷、火区、积水的过程中不留任何死角，并提出在确定采空区及火区的具体位置后，采用爆破充填法及黄泥注浆法处理采空区及火区。