摘要
以上海市某超深大基坑工程为例,对坑底以下深厚承压水进行研究分析,通过现场承压水单井及群井抽水试验获得的观测数据,与数值模拟的拟合曲线进行对比,评估现场抽水试验所得数据的可靠性。现场抽水试验过程中的地表沉降监测数据及试验完成后的回灌试验数据表明,地表沉降恢复量主要集中在抽水试验停抽后的短时间内。
Taking a super deep and large foundation pit project in Shanghai as an example, this paper studies and analyzes the deep confined water under the pit bottom, and evaluates the reliability of the data obtained from the field pumping test of single well and group wells of confined water and the fitting curve of numerical simulation. In addition, according to the monitoring data of land subsidence during the field pumping test and the recharge test data after the completion of the test, it shows that the land subsidence recovery is mainly concentrated in the short time after the pumping test is stopped.
作者
张睿敏
ZHANG Rui-min(Shanghai Shenyuan Geotechnical Engineering Co.,Ltd.,200011,Shanghai,China)
出处
《建筑技术》
2022年第2期192-195,共4页
Architecture Technology
关键词
超深大基坑
抽水试验
承压水
水文地质参数
super deep and large foundation pit
pumping test
confined water
hydrogeological parameters
