Application of NEMV technology in goaf exploration of Chenjiashan Coal Mine
Chenjiashan Coal Mine mainly mines 4-2 coal seams of the Yan'an Formation of the Jurassic system.The natural conditions of the mine are complex;coal,oil and gas coexist,and water,fire,gas,coal dust and roof disasters are all existed.There are many small coal kilns distributed near the shallow 4-2 coal seam outcrop line in the southeast boundary of the mine,and whether there is any cross-border behavior in historical mining,which has potential safety hazards to the safety production of the mine.At the same time,due to the steep slopes of the surface hills and dense vegetation in the area,which cannot be detected by traditional exploration techniques,the NEMV exploration technology based on stress-natural electro-magnetic pulse was used to explore the area.UAV is adopted for data collection,which is not affected by ground conditions,and can accurately identify coal seam occurrence and geological structure patterns,and conduct fine exploration of areas with unclear hydrological conditions such as goaf areas and waterlogged areas.According to the distribution of abnormal areas in the plane diagram of coal seam stress coefficient,a total of 2 goafs and 2 small coal pits theft areas were found in the study area,which effectively solved the practical problems in coal mining.
NEMV exploration technologyChenjiashan Coal Minestress abnormalitygoafstolen mining in small coal pits
国家科技期刊平台
NSTL
万方数据
维普
