A case study of braced excavation using steel sheet pile wall in Thi Vai soft clay

Dao Thi Van Tram, Le Trong Nghia and Nguyen Cong Oanh ()
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Dao Thi Van Tram: Faculty of Civil Engineering, University of Technology, HCM city, Vietnam
Le Trong Nghia: Faculty of Civil Engineering, University of Technology, Ho Chi Minh City, Vietnam
Nguyen Cong Oanh: Posco Engineering, Representative Office, Ho Chi Minh City, Vietnam

HO CHI MINH CITY OPEN UNIVERSITY JOURNAL OF SCIENCE - ENGINEERING AND TECHNOLOGY, 2014, vol. 4, issue 1, 48-60

Abstract: The paper presents a case study of braced excavation using sheet pile wall in Thi Vai soft clay in South East of Ho Chi Minh city, Vietnam. The study is focusing on stress-strain-displacement behavior with field monitoring of lateral displacement of the wall and settlement of the surrounding area while the 11m excavation of the pump pit was performed. Furthermore, comparison of calculated and monitored data is shown to get insight into actual behavior of the braced cut wall. It is finally found that the ratio between maximum lateral displacement to maximum excavation depth ranging from 1.12%, 3.08% and 3.35% respectively for inclinometers INC-01 to INC-03 and that between surface settlement to maximum excavation depth 0.93% without any failure of the braced excavation and effective stress analysis can be used for getting reasonable and practically accepted values of both lateral displacement and surface settlement.

Keywords: Soft clay; sheet pile; excavation; lateral displacement. (search for similar items in EconPapers)
Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:bjw:techen:v:4:y:2014:i:1:p:48-60

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