潘家窑井田7号煤层带压开采安全性分析  

Safety Analysis of Mining with Pressure in the No.7 Coal Seam of Panjiayao Mine Field

作　　者：赵璐 王欣欣 白金吉 Zhao Lu;Wang Xinxin;Bai Jinji(School of Coal Engineering,Shanxi Datong University,Datong 037000,China)

机构地区：[1]山西大同大学煤炭工程学院,山西大同037000

出　　处：《山东煤炭科技》2025年第1期126-130,共5页Shandong Coal Science and Technology

摘　　要：潘家窑煤矿在开采时深受奥陶系石灰岩岩溶裂隙含水层的威胁,7号煤层存在带压开采问题,且煤层底板突水和断层是危害矿井安全的一个重要灾害问题。为了确保煤层的正常开采,现运用突水系数法和安全隔水层厚度计算法等多种方法综合进行奥陶系碳酸盐岩裂隙岩溶水带压开采突水危险性评价,对奥陶系碳酸盐岩裂隙岩溶水带压开采的突水危险性进行了综合评价。结果显示:7号煤层底板标高626.89~926.39 m,其煤层底板标高低于奥灰水水位标高,属带压开采区,确定了奥灰水是矿井主要充水水源之一,现用瞬变电磁法来排查采空区、矿井无线电波坑道透视技术勘测陷落柱和断层等多种方法来防治该煤层的带压开采问题。Panjiayao Coal Mine is deeply threatened by the karst fissure aquifer of Ordovician limestone during mining.The No.7 coal seam has the problem of mining with pressure,and water inrush and faults in the coal seam floor are an important disaster issue that endanger the safety of the mine.In order to ensure the normal mining of coal seams,various methods such as water inrush coefficient method,calculation method of safety water-resisting layer thickness and others are used to comprehensively evaluate the water inrush dangerousness in Ordovician carbonate rock fissure and karst water mining with pressure.The water inrush dangerousness in Ordovician carbonate rock fissure and karst water mining with pressure is comprehensively evaluated.The results show that the floor elevation of the No.7 coal seam is 626.89-926.39 m,which is lower than the water level elevation of Ordovician limestone water.It belongs to the mining with pressure area,and it is determined that the Ordovician limestone water is one of the main water sources of water filling in the mine.Now,various methods such as transient electromagnetic method to investigate goaf,wireless radio wave tunnel perspective technology to explore collapse columns and faults,and so on are used to prevent and control the problem of mining with pressure in this coal seam.

关 键 词：带压开采 煤层底板突水 安全隔水层厚度 突水系数法 涌水量 

分 类 号：TD353[矿业工程—矿井建设]