山东淄博沣水泉域岩溶水系统模拟及水源地优化开采预测  

Numerical simulation and optimal exploitation scheme for the karst groundwater recourses system of Fengshui spring basin in Zibo region,Shandong Province,China

作　　者：郭达鹏[1] 康凤新 陈奂良 成建梅[1] 罗伟[4,1] GUO Dapeng KANG Fengxin CHEN Huanliang CHENG Jianmei LUO Wei(School of Environmental Studies, China University o.f Geosciences, Wuhan, Hubei 430074, China Shandong Provincial Bureau of Geology and Mineral Resources, Ji＇ nan, Shandong 250013, China Shandong Provincial Geo mineral Engineering Exploration Institute, Ji＇ nan, Shandong 250014, China Sichuan Bureau of Geology ~Mineral Resources Chengdu Hydrogeological Engineering Geological Brigade Chengdu , Chengdu,Sichuan 610081, China)

机构地区：[1]中国地质大学(武汉)环境学院,武汉430074 [2]山东省地质矿产勘查开发局,济南250013 [3]山东省地矿工程勘察院,济南250014 [4]四川省地质矿产勘查开发局成都水文地质工程地质中心,成都610081

出　　处：《中国岩溶》2017年第3期327-338,共12页Carsologica Sinica

基　　金：资助项目:山东省沣水泉域水文地质环境地质调查(12120113103900)

摘　　要：沣水泉域岩溶水系统是淄博市及周边地区最主要的供水水源,因原有大武水源地水质严重污染,急需开辟新的水源地,故须重新开展泉域岩溶水资源评价和开采规划工作。文章在充分概化研究区水文地质概念模型的基础上,借助FeFlow软件,建立了基于等效连续介质的三维非均质各向异性岩溶水模型,并利用2016年水位动态数据对模型进行识别和验证。经模型计算可知,在2000-2015年,研究区岩溶地下水日均补给量为104.47万m^3/d,排泄量为80.27万m^3/d,正均衡24.20万m^3/d。对原大武水源地与新增刘征水源地优化开采方案预测的结果表明,最优开采方案为:(1)保持大武水源地现状35.91万m^3/d开采条件下,刘征水源地最大开采量为5.5万m^3/d,刘征!大武富水地段最大可开采量为41.41万m^3/d;(2)满足刘征!大武富水地段最大开采条件,大武水源地最大可减采至33.41万m^3/d,刘征最大开采量为8万m^3/d。The Fengshui karst spring system is the most important groundwater resources for water supply in the area of Zibo,Shandong Province.Due to serious industrial pollution of the previous water source in Dawu area,a new water source located in Liuzheng area is identified and explored to carry out the re-assessment of the karst groundwater resources availability and then come up with an optimal exploitation scheme.Through understanding hydrogeological conditions and establishing conceptual model of the study area,a three-dimensional,heterogeneous and anisotropic karst water model has developed by using FeFlow software,based upon the equivalent continuum porous media theory and using the data derived from the 16 year borehole monitoring data.The results of water balance calculation from 2000 to 2015 shows that the average groundwater recharge of the study area is 1.0447×10^6 m3/d and the average discharge is 8.027×10^5 m3/d,with a net positive surplus of 2.420×10^5 m3/d.The model prediction results for the optimal pumping of the karst groundwater suggest that,（1）To maintain the current groundwater exploitation with 3.591×10^5m3/d in the Dawu area,the maximum exploitation should be 5.5×104 m3/d in the Liuzheng area,and the total exploitation in the Liuzheng-Dawu area is up to 4.141×10^5 m3/d;（2）To meet the need of maximum permissive groundwater exploitation in the Liuzheng-Dawu area,the maximum exploitation quantity can be decreased to 3.341×10^5 m3/d for Dawu area and increased to 8×10^4 m3/d for Liuzheng area.

关 键 词：岩溶地下水 地下水数值模拟 优化开采 FEFLOW 沣水泉域 

分 类 号：P641.8[天文地球—地质矿产勘探]