ISSN: 2734-9438
Website: www.jomc.vn
Practical Calculation of Diaphragm Wall Deflection using Plaxis 3D Software
Abstract
In this article, the mathematical models within the Plaxis 3D software were used to simulate and assess the deflection of diaphragm walls, comparing with data collected from a real project. This scientific and effective approach is crucial, as analyzing and simulating the excavation stages before constructing diaphragm walls for underground levels becomes essential for controlling wall displacement and preventing potential soil erosion issues in the surrounding deep excavation, which could have serious consequences for neighboring structures. The numerical modeling results demonstrate that the deflection of the diaphragm wall varies inversely with its thickness, but this variation is relatively small and quite compatible with the observed data
References
- Chau Ngoc An (2012), Soil Mechanics, National University Publishing House, Ho Chi Minh City.
- Nguyen Ngoc Thang (2023), Simulation of Pile-Soil interaction using finite element theory in the case of laterally loaded pile, Journal of Construction, Vol. 62, Issue 4, pp. 102- 105.
- M. G. Freiseder and H. F. Schweiger (2007), Numerical Analysis of Deep Excavations, Application of Numerical Methods to Geotechnical Problems Conference, Technical University Graz, Austria, Vol. 397, pp. 283–292.
- Chang-Yu, Ou. (2006), Deep Excavation - Theory and Practice, Taylor and Francis Group, London, UK, pages 552.
- L. K. Hing., et al. (2014), Determination of soil stiffness parameters at a deep excavation construction site in Kenny Hill Formation, Geotechnical Services, Measurement, Vol. 47, pp. 645- 650.
- H. G. Kempfert, B. Gebreselassie (2006), Excavations and Foundations in Soft Soils, The Journal of Springer, Chapter 3, pp. 117-273.
- T.Schanz and P.A.Vermeer. (2015), On the stiffness of Sand, Pre failure deformation behavior geomaterials, Thomas Telford Publishing, Vol. 4, Issue 2, pp. 383-387.
- Nguyen Viet Trung and Nguyen Thi Bach Duong, (2009), Analysis of tunnel and sheet pile structures using Plaxis software, Transport Publishing House, Hanoi.
- PLAXIS 3D, Geotechnical Analysis Software, https://www.bentley.com/software/plaxis-3d/.
- Vo Phan and Ngo Duc Trung. (2015), Analysis of displacement of excavation diaphragm walls stability, Journal of Construction, Vol. 54, Issue 1, pp. 42- 45.
- Jim S., et al. (2018), Stability charts for unsupported plane strain tunnel headings in homogeneous undrained clay, International Journal of Geomate, Vol. 14, Issue 41, pp.19-26.
- Nguyen Ba Ke. (2002), Design and construction of deep foundation excavation, Construction Publishing House, Hanoi.
- Nguyen Ba Ke, (2006), Urban underground construction by excavation method, Construction Publishing House, Hanoi.
- Nguyen Ngoc Thang, (2022), Double-Layer Larsen sheep for deep excavation, Journal of Construction, Vol. 61, Issue 3, pp. 168- 171.
- Chau Ngoc An, Le Van Pha. (2007), Design of deep excavation supporting structure by considering the interaction between soil and structure, Journal of Science and Technology Development, Vol. 10.
- Inclinometer Equip, measure wall deformation https://www.geotechinternational.com/VN/Do_nghieng.html.