甘肃省环县刘园子煤矿采空区地表变形预测及危险性评估  

Surface deformation prediction and hazard assessment of goaf in Liuyuanzi Coal Mine,Huanxian County,Gansu Province

作　　者：张磊 ZHANGLei(Geological Survey of Gansu Province,Lanzhou 730000,Gansu,China)

机构地区：[1]甘肃省地质调查院,甘肃兰州730000

出　　处：《资源信息与工程》2024年第5期83-86,共4页Resource Information and Engineering

摘　　要：本文系统分析了环县刘园子煤矿采空区对地表沉降的影响。该煤矿开采层主要为侏罗系下统延安组,已形成21条趋向于北东-南西方向的地表裂缝。定量评估了地表沉降、位移以及影响范围,地表最大移动距离为912.2 mm,最大沉降1 365.80 mm,采空边界平均影响半径为209 m,覆盖面积约为0.926 km^(2)。研究表明,该区域的采空区塌陷引发山体滑坡的可能性较低,预测的危险性为中等。采空区的塌陷对邻近居民有一定的潜在影响,对煤矿设施及刘园子村的大部分区域则影响有限。研究结果为煤矿开采影响评估和地表稳定性维护提供了重要依据。In this paper,the impact of goaf of Liuyuanzi Coal Mine in Huanxian County on the surface settlement is systematically analyzed.The coal mine was mainly mined in the Lower Jurassic Yan'an Formation,which has formed 21 surface cracks in the direction of northeast to southwest.The surface settlement,displacement and the impact range were evaluated through quantitative calculation.The maximum surface movement distance is 912.2 mm,the maximum settlement is 1365.80 mm,and the average radius of impact range of the mining boundary is 209 m,covering an area of approximately 0.926 km^(2).The study shows that the possibility of landslides caused by goaf collapse in this area is low,and the predicted hazard is moderate.The collapse of the mine goaf has a certain potential impact on the neighboring residents,while has limited impact on the coal mine facilities and most areas of Liuyuanzi Village.The research results provide an important basis for the assessment of coal mining impacts and the maintenance of surface stability.

关 键 词：煤矿采空区 地表变形 危险性评估 环境监测 地质灾害预警 

分 类 号：P694[天文地球—地质学]