复合型矿山水文地质条件及矿坑涌水量研究  

Study on hydrogeological condition and water yield of compound mine

作　　者：杨闪 张晶 郝海强 YANG Shan;ZHANG Jing;HAO Haiqiang(North China Engineering Investigation Institute Co.,Ltd.,Shijiazhuang 050021,Hebei,China;Technology Innovation Center for Groundwater Disaster Prevention and Control Engineering for Metal Mines,Ministry of Natural Resources,Shijiazhuang 050021,Hebei,China)

机构地区：[1]华北有色工程勘察院有限公司,河北石家庄050021 [2]自然资源部金属矿山地下水灾害防治工程技术创新中心,河北石家庄050021

出　　处：《矿产勘查》2023年第7期1250-1258,共9页Mineral Exploration

基　　金：“金属矿山水文地质工程地质自动化监测预警平台项目”(HK2021-B8)资助。

摘　　要：本文以某金属矿山为例,为准确预测矿山设计阶段及实际开采阶段矿坑涌水量,以保证矿山安全开采和保护地下水资源,分析了矿区含水层隔水层分布、地下水补径排条件、地下水动态变化和矿床充水因素,将矿区平面上所处水文地质单元详细划分为西区、东区2个次级水文地质单元进行研究,每个次级单元概化为半圆形抽水大井,将矿区垂向上、上部开采相对较大区域概化为大井,深部开采面积急剧减小段概化为叠加的深部开采小井,矿山总体成为复合型矿山水文地质模型。根据抽水试验数据采用比拟法,对首采段矿坑涌水量进行计算并根据实际排水量进行了对比验证,并综合矿山实际开采数据,采用优化的比拟法和相关分析法,对深部矿坑涌水量进行了预测。通过对复合型矿山的概化及计算,为条件复杂矿山的矿坑涌水量计算提供了理论和实践依据。This paper taking a metal mine as an example,in order to accurately predict the water inflow during the design and actual mining stages,and ensure safe mining and protect groundwater resources,the distribution of aquifers and aquiclude,the conditions for groundwater recharge and discharge,the dynamic changes of groundwater level,and the factors affecting the water filling of the deposit are analyzed,the hydrogeological units on the mining area plane are divided into two sub hydrogeological units,namely the western and eastern regions,for the research.Each sub unit is generalized as a semi circular pumping well,the relatively large mining areas in the upper part of mining areas are generalized as large wells,while the sharply reduced deep mining areas are generalized as superimposed small well,thus,the overall mine is generalized as a hydrogeological model of a composite type mine.Based on the pumping test data,the analogy method is used to calculate the water inflow of the first mining section,and a comparative verification is conducted based on the actual drainage amount.Based on the actual mining data,the optimized analogy method and correlation analysis method are used to predict the water inflow of the deep mine pit.This paper,through generalizing and calculating composite mines,provides theoretical and practical basis for the calculation of pit water inflow in complex mines.

关 键 词：复合型矿山 矿坑涌水量 地质调查工程 水文地质单元 水文地质条件 

分 类 号：P641.72[天文地球—地质矿产勘探]