摘要
位于峰峰矿区内的羊角铺水源地日开采奥陶系岩溶地下水达为9万m3,为一个大型的水源地。参照《饮用水水源保护区划分技术规范》大型水源地保护区范围确定应采用数值模型模拟计算的规定要求,本文根据羊角铺水源所在地下水系统的水文地质特征,结合模型技术的要求,利用目前国际上流行的visualmod flow软件,采用数值模拟法对地下水系统的溶质运移进行模拟预测,并据之确定出羊角铺水源地不同级别的保护区范围,具体是:以水源地地下水开采井为中心,溶质质点迁移100天的距离为半径所圈定的范围作为水源地一级保护区范围,溶质质点迁移1 000天的距离为半径所圈定且除去一级保护区以外的范围为二级保护区,将水源地所在的岩溶水子系统的奥陶系灰岩裸露补给区范围划定为准保护区范围。
Yangjiaopu protective district located in Fengfeng mining site is a large water source district.About 90 thousand m3 of karst water from Ordovician is explored in Yangjiaopu every day.＂Sub-divisional Technological Regulation for Source Protective Zones of Drinking Water（HJ/T338-200）＂ published by State Environmental Protection Administration in 2007 states that division of the large scale water protective zone should use numerical model to simulate and calculate.According this regulation,this paper simulate and forecast the solute transport of Yangjiaopu karst groundwater system using numerical simulation method with visual modflow software,to divide the extent of the water source protective zones in different grade.The division result is as follow： The area centered on the groundwater exploitation well and delimited by the radius of solutes transporting for 100 day,can be regarded as the first-grade protection zone.Excepting the first-grade protection zone,the area delimited by the radius of solutes transport for 1 000days,is consider as the second-grade protection zone.The bare Ordovices Limestone area recharging the karst water subsystem could be divided into prospective protection zone.
出处
《中国岩溶》
CAS
CSCD
2011年第1期47-52,71,共7页
Carsologica Sinica
基金
邯郸市环境保护局委托项目
邯郸市城市环境保护重点科研项目"邯郸市羊角铺饮用水水源地保护区划分"
关键词
岩溶地下水系统
数值模型
计算目的层
一级保护区
二级保护区
准保护区
karst groundwater system
numerical simulation
calculation of target zone
first-grade protection zone
second-grade protection zone
prospective protection zone
