潮白河河道回灌入渗试验研究  

Study on Recharge Capability of Chaobai River

作　　者：张志永[1,2] 焦剑妮 姚旭初[3] 张成龙[1] 杨章贤[1] 

机构地区：[1]安徽省地质环境监测总站,安徽合肥230001 [2]中国地质大学(北京)水资源与环境学院,北京100083 [3]北京市水利规划设计研究院,北京100048

出　　处：《人民黄河》2014年第11期81-84,共4页Yellow River

基　　金：北京市科技计划项目(Z121100000312036);"十二五"国家科技支撑计划项目(2011BAC12B02)

摘　　要：通过对潮白河河道进行现场单双环试验和坑灌试验,查明包气带水文地质条件。用包气带水流模拟软件HYDRUS建立受水区地下水流模拟模型,预测潮白河河道包气带回灌能力,为南水北调余水合理回灌利用提供科学依据。预测结果表明:在每年的回灌期290 d内,保证12 km回灌河道有水的情况下,通过包气带底部边界流出的水量最小值为76.56亿m3。随着回灌水头的增加,通过包气带底部边界流出的水量相应增加,二者呈正相关。Field single and double ring infiltration test and water storage pit irrigation test were carried out in Chaobai River channel to identify the unsaturated zone hydrogeological conditions. With the use of HYDRUS,groundwater flow simulation model in the intake area was constructed to predict the unsaturated zone recharge capacity of Chaobai River channel and provided scientific basis for reasonable recharge. The prediction result shows that the minimum volume of water flowing through the bottom boundary of unsaturated zone is 7. 656 billion cubic meters if there is water in channel within annual 290 days’recharge period. With the increase of the head,the amount of water flowing through the bottom boundary of unsat-urated zone increases accordingly and the positive correlation is presented.

关 键 词：包气带 HYDRUS 数值模拟 南水北调 

分 类 号：P641.25[天文地球—地质矿产勘探]