马道头矿3#煤层开采地表沉陷规律研究及智能监测策略  

Research on Surface Subsidence Law and Intelligent Monitoring Strategy in No.3 Coal Seam of Madaotou Mine

作　　者：刘乙霖[1] 欧阳敏 岳鑫 LIU Yilin;OUYANG Min;YUE Xin(Tongda Science and Technology Research Institute,Datong Coal Mine Group Co.,Ltd.,Datong 037000,China;Coal Mining and Designing Branch,China Coal Research Institute,Beijing 100013,China;School of Mines,China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]大同煤矿集团有限责任公司同大科技研究院,山西大同037000 [2]煤炭科学研究总院开采研究分院,北京100013 [3]中国矿业大学矿业工程学院,江苏徐州221116

出　　处：《煤炭技术》2022年第4期44-48,共5页Coal Technology

摘　　要：针对浅埋煤层开采地表下沉问题,以马道头煤矿地质条件为基础,利用UDEC进行数值模拟:从力→裂隙→位移的时空演化顺序分析了该地质条件下不同采动程度的覆岩移动规律;结合下沉、水平移动、倾斜、曲率、水平变形5个参数对该地质条件下不同采动程度的地表沉陷规律进行了分析。针对目前采掘活动引起的覆岩移动及地表沉陷问题的“灰箱”现状,阐明了要在构建精准静态三维地质模型的基础上,构建随采掘活动不断在时空上变化的动态四维地质模型,并设计了基于无人机倾斜摄影的地表沉陷智能监测方案和基于多场感知的覆岩移动智能监测方案。Aiming at the problem of surface subsidence in shallow coal seam mining.Based on the geological conditions of Madaotou coal mine,using UDEC to carry out numerical simulation:from the force → fracture → displacement of space-time evolution sequence,the overburden movement law of different mining degrees under the geological conditions is analyzed.Combined with five parameters of subsidence,horizontal movement,inclination,curvature and horizontal deformation,the surface subsidence laws of different mining degrees under the geological conditions are analyzed.In view of the current situation of "gray box" of overburden movement and surface subsidence caused by mining activities,expounds that on the basis of constructing accurate static three-dimensional geological model,it is necessary to build a dynamic four-dimensional geological model that changes in time and space with mining activities,the intelligent monitoring scheme of surface subsidence based on UAV tilt photography and the intelligent monitoring scheme of overburden movement based on multi field perception are designed.

关 键 词：浅埋厚煤层 地表沉陷 智能监测 

分 类 号：TD327[矿业工程—矿井建设]