中国地质调查2025，Vol.12Issue(4)：78-85,8.DOI:10.19388/j.zgdzdc.2024.274
平陆运河建设对区域地下水流场的影响
Effect of Pinglu Canal construction on the regional groundwater flow field
摘要
Abstract
Pinglu Canal construction required long,deep foundation excavations that would largely alter the sur-rounding groundwater flow field.The key excavation section of Pinglu Canal was selected as the research object to establish a three-dimensional groundwater flow numerical model.The changes in the groundwater flow field un-der the condition of the drainage and drying period of Pinglu Canal construction and water storage submergence during operation were predicted.The results show that the current groundwater flow field in the study area is from south-west to north-east runoff in the northern Yujiang River basin and from north to south runoff in the south-ern Qinjiang River basin.And the groundwater flow field during the construction and operation phases was changed to the runoff of east-west canal channel section and discharged to the canal,and flowed into Qinjiang River with the canal from north to south.During the construction period of Pinglu Canal,the excavation depth of Madaotou cascade hubs was the largest,which had the greatest impact on the surrounding groundwater and resul-ted in the maximum groundwater level drawdown depth of 63.1 meters.The area with extensive groundwater level decline caused by the operation and water storage of Pinglu Canal was mainly in each navigation channel segment of the canal,with the maximum drawdown being 20.8 meters.The model prediction results have reflected the im-pacts of the construction of Pinglu Canal on the groundwater flow field,and provided data support for future of reg-ulatory programs and preventive and control measures for subsequent water resource-environmental management,which could help alleviate the groundwater environmental problems that may be caused by the construction of the canal at the source.关键词
平陆运河/地下水数值模拟/地下水流场/地下水水位Key words
Pinglu Canal/numerical simulation of groundwater/groundwater flow field/groundwater level分类
天文与地球科学引用本文复制引用
张勤军,陈驰清,滕龙,李健伟,郑焕君,康志强..平陆运河建设对区域地下水流场的影响[J].中国地质调查,2025,12(4):78-85,8.基金项目
广西科技重大专项"中国—柬埔寨典型岩溶关键带碳循环过程对比研究与应用示范(编号:桂科AA24206020)"、国家自然科学基金"酸雨条件下碳酸盐岩溶蚀过程及对岩溶碳汇效应的影响机制(编号:42372294)"、广西地质矿产勘查开发局"广西靖西市坡豆河流域岩溶碳汇调查评价(编号:GXDK202405)"及"广西矿山水文地质勘查关键技术研究人才小高地(编号:桂地矿综研[2024]6号)"联合资助. （编号:桂科AA24206020）
