基于MODFLOW与气候模式的矿区地下水流模拟  

Groundwater Flow Simulation in Mining Area Based on MODFLOW and Climate Model

作　　者：刘中培[1,2] 李鑫 陈莹[3] 韩宇平 LIU Zhong-pei;LI Xin;CHEN Ying;HAN Yu-ping(North China University of Water Resources and Electric Power,Zhengzhou 450045,Henan Province,China;State Key Laboratory of Water Resources Protection and Utilization in Coal Mining,Beijing 100011,China;Water Resources Management Centre in Ministry of Water Resources,Beijing 100038,China)

机构地区：[1]华北水利水电大学,郑州450045 [2]煤炭开采水资源保护与利用国家重点实验室,北京100011 [3]水利部水资源管理中心,北京100038

出　　处：《中国农村水利水电》2021年第5期113-117,124,共6页China Rural Water and Hydropower

基　　金：水利部“948”项目(201328);国家自然科学基金项目(42072287);国家重点研发计划项目(2016YFC0401400);“煤炭开采水资源保护与利用”国家重点实验室开放基金项目(SHJT-16-30.7)。

摘　　要：为了研究煤炭开采对地下水水位的影响,在分析研究区水文地质特征及地下水水位监测资料的基础上,通过构建研究区的三维地质模型、地下水流数值模型以及未来气候变化情景,对研究区的地下水流进行了模拟和预测,进而来探究煤炭开采过程中潜水水位的变化情况。结果表明:①煤矿在现状条件下开采,研究区的地下水补给总量和排泄总量分别为573.22万m^(3)和1038.5万m^(3),均衡差为465.28万m^(3),研究区地下水系统处于负均衡状态。②预测结果显示,2020-2035年研究区的地下水资源量逐渐减少,潜水水位普遍下降;随着地下水开采量的减小,局部区域出现水位回升现象,地下水降落漏斗的范围也有所减小。In order to study the impact of coal mining on groundwater level,the groundwater flow in the study area is simulated and predicted by establishing the 3D geological model,groundwater flow numerical model and climate change scenarios in the future based on the analysis of hydrogeological characteristics and groundwater level monitoring data in the study area,which paves the way to delve into the change of groundwater level during the process of coal mining situation.The results show that:①Under the current conditions of coal mining,the total amount of groundwater recharge in the research area is 573.22×10^(4) m^(3) the total amount of discharge is 1038.5×10^(4) m^(3),and the balance difference is 465.28×10^(4) m^(3).The groundwater system in the research area is in a negative balance state.②It is predicted that the amount of groundwater resources in the research area will decrease gradually from 2020 to 2035,and the phreatic water level will generally decrease.With the decrease in groundwater exploitation,the water level will rise in some areas,and the scope of groundwater depression funnel will decrease.

关 键 词：三维地质模型 地下水演变 数值模拟 气候模式 煤炭开采 

分 类 号：TV11[水利工程—水文学及水资源] P641[天文地球—地质矿产勘探]