摘要
榆神矿区是陕北煤炭基地建设的核心地区,矿区地处沙漠边缘,水资源贫乏,浅埋煤层开采对浅层地下水影响显著,并造成水位下降和生态环境变化。榆树湾煤矿是榆林能源集团榆神煤电公司的主力矿井,核定生产能力1 000万t/a,近年来矿井涌水量一直保持在800 m^(3)/h以上,目前地表水对矿井涌水危害不大,影响矿井涌水的因素是采空面积和开拓长度的增大,采掘破坏影响的顶板含水层向矿井充水通道变多,导致矿井涌水量逐渐增大。分析矿井水文地质条件、矿井充水因素,矿井涌水量与大气降水、采掘面积等因素的关系,提出从区域上研究水文地质条件,分析矿井涌水量持续来源的途径,建立矿区地下水动态、井下出水点监测系统,采取一系列保水措施,从根本上解决矿井涌水量较大的难题,促进煤矿产能提升,服务绿色矿区建设。
The Yushen mining area is the core area for the construction of the coal base in northern Shaanxi,the mining area is located on the edge of the desert and lacks water resources,shallow coal seams mining has a significant impact on the shallow groundwater,and causing the water level drop and the ecological environment change.Yushuwan Coal Mine is the main mine of Yulin Energy Group Yushen Coal and Electricity Company,with an approved production capacity of 10 million t/a,the mine water inflow has remained above 800 m^(3)/h in recent years.At present,surface water is not very harmful to mine water inflow.The factors affecting mine water inflow are the increase of goaf area and development length.The roof aquifer affected by mining damage has more water-filling channels to the mine,resulting in a gradual increase in mine water inflow.The relationship between mine hydrogeological conditions,mine water filling factors,mine water inflow and atmospheric precipitation,mining area and other factors is analyzed,and it is proposed to study hydrogeological conditions from a regional perspective.Analyze the ways of the continuous source of mine water inflow,establish a monitoring system for groundwater dynamics and underground water outlet points in the mining area,and take a series of water-retaining measures to fundamentally solve the problem of large mine water inflow,promote the improvement of coal mine performance,and serve the construction of green mining areas.
作者
白如鸿
刘壮
刘宁平
高兴斌
贺铜章
BAI Ruhong;LIU Zhuang;LIU Ningping;GAO Xingbin;HE Tongzhang(Shaanxi Yulin Energy Group Co.,Ltd.,Yulin 719000,China)
出处
《陕西煤炭》
2022年第5期144-148,共5页
Shaanxi Coal
关键词
矿井涌水量
萨拉乌苏组
保水开采
榆神矿区
mine water inflow
Salawusu formation
water-retaining mining
Yushen mining area
