摘要
针对非煤地下矿山前期无序开采遗留盲采空区地质资料不全、采空区位置及空间形态等难以确定这一技术难题,选取某锑矿为研究对象,采用高密度电阻率法为技术手段,在该锑矿+325m中段以上进行盲采空区勘查试验研究。研究结果表明:将盲采空区特点及现有地质资料和高密度电阻率法反演推断结果相结合,可较为准确的识别采空区异常;根据地形地质和水文地质资料,勘查区地形坡度大,岩层产状陡、裂隙发育,+325m标高以上很少积水,与地球物理推断采空区异常电阻率特征反映一致。本次研究最终推断16个采空区异常,投影各异常平面面积总计9856m^(2),采空区体积估算约73382m^(3),其中无积水未填充采空区体积约50121m^(3)。本次研究可为存在类似采空区的矿山提供一定技术参考。
In view of the technical problems of incomplete geological data of blind goaf left by disorderly mining in the early stage of metal mines,the location and spatial form of goaf are difficult to determine.Taking an antimony mine as the research object,the high-density resistivity method is used as the technical means to carry out the blind goaf exploration test in the+325 level of the antimony mine.The results show that the combination of the characteristics of the blind goaf and the existing geological data and the inversion results of the high-density resistivity method can accurately identify the goaf anomaly.According to the topographic and hydrogeological data,the terrain slope of the detection area is large,the rock stratum is steep,the fracture is developed,and there is little water accumulation above the elevation of+325 m,which is consistent with the geophysical inference of the abnormal resistivity characteristics of the goaf.Finally,16 goaf anomalies are inferred,and the total area of each abnormal plane is 9856 m^(2).The volume of goaf is estimated to be about 73382 m^(3),of which the volume of goaf without water accumulation is about 50121 m^(3).This study can provide reference for mines with similar goaf exploration.
作者
周水祥
李文辉
ZHOU Shuixiang;LI Wenhui(Hunan Nonferrous Environmental Protection Research Institute Co.,Ltd.,Changsha 410100,China;Hunan Nonferrous Metals Labour Protection Academy Co.,Ltd.,Chagnsha 410014,China)
出处
《湖南有色金属》
CAS
2024年第1期8-12,共5页
Hunan Nonferrous Metals
关键词
矿山
电阻率
盲采空区
mines
resistivity
blind underground cavity
