Buttress wall in limiting wall deformation caused by deep excavation: A case study for colluvial soil in Vietnam

• Autorzy: Bui Luc Manh , Wu Li , Do Minh Ngoc , Cheng Yao , Dong Dao Jun

Identyfikatory

DOI

10.24425/ace.2024.149876

• Języki publikacji: EN

Abstrakty

EN

The objective of this study is to assess the impact of utilizing a BW (Buttress wall) to control the deflection of a diaphragm wall in colluvial soil conditions in Vietnam. The physical and mechanical properties of the colluvial layers are evaluated using data closely monitored during a specific project, serving as validation for 3D numerical simulations utilizing the Hardening Soil Model. The analysis results closely match the field monitoring data, which has tested the accuracy of the simulation model. This forms the basis for further investigations into the dimensional parameters of BW walls, including length, thickness, and spacing between them. The results obtained from the parametric study demonstrate that altering the wall length and spacing between BWvwalls significantly limits the deflection of the diaphragm wall, while changes in thickness have a negligible effect. Through the 3D numerical simulations, a linear relationship between the maximum wall deflection and parameters such as wall length and spacing between BW walls has been established.

Słowa kluczowe

EN

buttress wall; colluvial soil; deep excavation; numerical analysis; deformation limit; wall

PL

ściana oporowa; gleba koluwialna; wykop głęboki; analiza numeryczna; ograniczenie deformacji; ściana

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2024
• Tom: Vol. 70, nr 2
• Strony: 477--492
• Opis fizyczny: Bibliogr. 25 poz., il., tab.

Twórcy

autor

Bui Luc Manh

• Faculty of Engineering, China University of Geosciences, Wuhan, China

• https://orcid.org/0009-0006-7816-8796

autor

Wu Li

• Faculty of Engineering, China University of Geosciences, Wuhan, China

• https://orcid.org/0000-0001-9651-3772

autor

Do Minh Ngoc

• Department of Geotechnical Engineering, Civil Engineering Faculty, University of Transport Technology, Hanoi, Vietnam

• https://orcid.org/0009-0007-8198-0985

autor

Cheng Yao

• Faculty of Engineering, China University of Geosciences,Wuhan, China

• https://orcid.org/0000-0003-2925-2773

autor

Dong Dao Jun

• Faculty of Engineering, China University of Geosciences, Wuhan, China

• https://orcid.org/0009-0005-9055-5564

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