CAJ | 학술논문

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。
통과대조백하하도진행현장단쌍배시험화갱관시험，사명포기대수문지질조건。용포기대수류모의연건HYDRUS건립수수구지하수류모의모형，예측조백하하도포기대회관능력，위남수북조여수합리회관이용제공과학의거。예측결과표명：재매년적회관기290 d내，보증12 km회관하도유수적정황하，통과포기대저부변계류출적수량최소치위76．56억m3。수착회관수두적증가，통과포기대저부변계류출적수량상응증가，이자정정상관。
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.