摘要
预测矿井涌水量的比拟法经验系数m和n的取值,在岩溶地区使用计算的矿井涌水量误差大,通过收集岩溶区同一水文地质单元中相邻多个矿井的排水资料进行整理分析,建立方程组,计算系数m和n,并采用排水井资料进行校核,误差<10%。瓮福磷矿区所在水文地质单元内比拟法公式系数修正后m=0.2770,n=2.762,证明了瓮福磷矿区矿井疏干的降深影响远大于开采面积的影响。在此基础上分别预测了小坝矿段+1000 m水平正常涌水量为8206 m^3/d,最大涌水量为28598 m^3/d;瓮安磷矿在+800 m开采水平的正常涌水量为8564 m^3/d,最大涌水量为29848 m^3/d。为下一步矿井安全生产提供技术依据。
Prediction of mine water inflow the analogy method of empirical coefficient m and n values,use great error in the calculation of the mine water inflow in karst region,by collecting adjacent in the karst area in the same hydrogeologic unit analysis of a number of mine drainage data establish a system of equations,the calculation coefficient m and n,and USES the drain well data;After the coefficient of comparison method in the hydrogeological unit where the Wengfu phosphate mine area is located is corrected,m=0.2770,n=2.762,which proves that the influence of mine drainage depth in Wengfu phosphate mine area is much greater than the influence of mining area.Based on this,the normal water inflow at the+1000 m level of small dam mine section is respectively 8206 m^3/d,and the maximum water inflow is 28598 m^3/d.The normal water inflow of Wengan phosphate mine at the mining level of+800 m is 8564 m^3/d,and the maximum water inflow is 29848 m^3/d,which provides the technical basis for the next step of mine safety production.
作者
戴柳珍
朱焕然
左涛
杨进
DAI Liu-zhen;ZHU Huan-ran;ZUO Tao;YANG Jin(geological Party,Guizhou Bureau of Geology and Mineral Exploration&Development,Guiyang 551400,Guizhou,China)
出处
《地下水》
2020年第6期22-23,46,共3页
Ground water
基金
贵州省瓮福磷矿区地下水环境状况调查与评价(黔地矿科合(2016)41号)。
关键词
系数修正
涌水量预测
岩溶
瓮福磷矿区
Coefficient correction
water inflow prediction
karst
Wengfu phosphate area
