露天转深部矿床水文地质特征及其水害防治对策——以贵州英坪深部磷矿区为例  

Hydrogeological characteristics and water disaster prevention countermeasures of open pit to deep deposit——A case study of deep phosphate mining area of Yingping in Guizhou

作　　者：曾凡祥 赵磊 曾道国 宋小军 巩鑫 ZENG Fan-xiang;ZHAO Lei;ZENG Dao-guo;SONG Xiao-jun;GONG Xin(Institute of Geology and Mineral Exploration,Non-Ferrous Metals and Nuclear Industry Geological Exploration Bureau of Guizhou,Guiyang,550005,China)

机构地区：[1]贵州省有色金属和核工业地质勘查局地质矿产勘查院,贵州贵阳550005

出　　处：《地下水》2021年第5期12-17,共6页Ground water

摘　　要：贵州英坪深部磷矿区,为现有英坪露天矿的深部延伸部分。对其矿床充水条件行了分析,确定了大气降水、灯影组、陡山沱组中的地下水、上部相邻矿山水是其主要充水水源。通过综合研究矿区水文地质特征,得出贵州英坪深部磷矿床为典型的受上部相邻矿山水补给能力强的岩溶孔洞裂隙充水矿床。根据英坪深部磷矿与相邻矿山空间位置关系特征、接触含水层赋水、导水性能特征分析,认为未来地下采掘越靠近上部英坪露采坑,易发生矿井突水、突泥、涌砂等危害,据此,提出地表结合地下水害防治措施具有较大可行性的结论,为此类矿床的研究提供了借鉴及参考。The deep phosphate mining area of Yingping,Guizhou,is a deep extension of the existing Yingping open-pit mine.The water-filling conditions of the deposits were analyzed,and it was determined that atmospheric precipitation,the groundwater in the Dengying Formation and the Doushantuo Formation,and the adjacent mine water above are the main water-filling sources.Through a comprehensive study of the hydrogeological conditions of the mining area,it is concluded that the deep phosphate deposit in Yingping,Guizhou,is a typical karst cavern-filled water-filled deposit with strong replenishment ability from the upper adjacent mine water.According to the characteristics of the spatial position relationship between the deep phosphate mine in Yingping and adjacent mines,and the analysis of the characteristics of water supply and water conductivity in contact with aquifers,it is believed that the closer the underground mining is to the upper Yingping open pit in the future,the mine water inrush,mud outburst and gushing are likely to occur.Based on this,it is concluded that the ground surface combined with groundwater hazard prevention and control measures have greater feasibility,which provides a reference and reference for the study of such deposits.

关 键 词：露天转深部矿床 水文地质特征 充水条件 水害防治对策 贵州英坪 

分 类 号：P641.43[天文地球—地质矿产勘探]