Centrifuge model test and field measurement analysis for foundation pit with confined water

作     者：Chunlin DING Xiaohong MENG 

作者机构：Key Laboratory of Road and Traffic Engineering of the Ministry of EducationTongji UniversityShanghai 200092China 

出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)

年 卷 期：2009年第3卷第3期

页      面：299-304页

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

主　　题：foundation pit with confined water centrifuge model test seepage-stress coupling field similarity relation field measurement deformation 

摘      要：The similarity law of centrifuge test was developed for the seepage field and stress field of a foundation pit with confined water by analyzing control equations,and a similarity index and a similarity coefficient of centrifuge test were *** on the deep foundation pit of the Huangxing Road Station of the Shanghai metro line M8,the deformation stability of the pit was ***,a comparative study was conducted on the test results of the pit deformation and the field measurement *** results show that the pit deformation regularity of the test is basically identical with that of the field measurement,and the difference in pit deformation between the test and the field measurement is within 50%.The centrifuge model test can effectively simulate the displacement response of the ground and retaining structure during dewatering and excavation for the pit with confined water,which provides a reliable basis for the design and construction of the pit with confined water.