Abstract
Construction of diaphragm wall panels may cause considerable stress changes in heavily overconsolidated soil deposits and can induce substantial ground movement. The 3D Lagrangian method was adopted to model the mechanical response of ground, including horizontal normal stress and shear stress, lateral ground displacement and vertical ground surface settlement, during the slurry trenching and concreting of diaphragm wall panels. Numerical results show that slurry trenching leads to horizontal stress relief of ground, reducing the horizontal stress of the ground from initial K 0 pressure to hydrostatic betonite pressure. Wet concrete pressure lies between the hydrostatic bentonite pressure and the initial K 0 pressure, so it can compensate partially the horizontal stress loss of the ground adjacent to the trench and thus reduce the lateral movement of the trench face as well as the vertical settlement of the ground surface.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Farmer I W, Attewell P B. Ground movements caused by a bentonite-supported excavation in London clay [J]. Geotechnique, 1973, 23(4): 576–581.
Tamano T, Fukui S, Suzuki H, et al. Stability of slurry trench excavation in soft clay [J]. Soils and Foundations, 1996, 36(2): 101–110.
Tedd P, Chard B M, Charles J A, et al. Behaviour of a propped embedded retaining wall in stiff clay at Bell Common Tunnel [J]. Geotechnique, 1984, 34(4): 513–532.
Poh T Y, Wong I H. Effects of construction of diaphragm wall panels on adjacent ground: field trial [J]. Journal of Geotechnical and Geoenvironmental Engineering, 1998, 124(8): 749–756.
Tsai J S, Jou L D, Hsieh H S. A full-scale stability experiment on a diaphragm wall trench [J]. Canadian Geotechnical Journal, 2000, 37(2): 379–392.
Elson W K. An experimental investigation of the stability of slurry trenches [J]. Geotechnique, 1968, 18(3): 37–49.
Powrie W, Kantartzi C. Ground response during diaphragm wall installation in clay: centrifuge model test [J]. Geotechnique, 1996, 46(4): 725–739.
Oblozinsky P, Ugai K, Katagiri M, et al. A design method for slurry trench wall stability in sandy ground based on the elasto-plastic FEM [J]. Computers and Geotechnics, 2001, 28(2): 145–159.
Ng C W W, Yan R W M. Stress transfer and deformation mechanisms around a diaphragm wall panel [J]. Journal of Geotechnical and Geoenvironmental Engineering, 1998, 124(7): 638–648.
Ng C W W, Yan R W M. Three-dimensional modeling of a diaphragm wall construction sequence [J]. Geotechnique, 1999, 49(6): 825–834.
Zhang H M, Xia M Y. 3-D stability analysis of slurry trenches [J]. China Civil Engineering Journal, 2000, 33(1): 73–76 (in Chinese).
Li L R. Formula discrimination of 3-D analysis of trenches stability [J]. Chinese Journal of Geotechnical Engineering, 2001, 23(3): 374–375 (in Chinese).
Fox P J. Analytical solutions for stability of slurry trench [J]. Journal of Geotechnical and Geoenvironmental Engineering, 2004, 130(7): 749–758.
Ding Y C, Wang J H, Chu Y B, et al. Threedimensional numerical analysis on mechanical behavior of a constructing diaphragm wall panel [J]. Rock and Soil Mechanics, 2007, 28(8): 1757–1761 (in Chinese).
Author information
Authors and Affiliations
Corresponding author
Additional information
Foundation item: the National Natural Science Foundation of China (No. 50679041); the Shanghai Leading Academic Discipline Project (No. B208)
Rights and permissions
About this article
Cite this article
Ding, Yc., Wang, Jh. Numerical modeling of ground response during diaphragm wall construction. J. Shanghai Jiaotong Univ. (Sci.) 13, 385–390 (2008). https://doi.org/10.1007/s12204-008-0385-0
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12204-008-0385-0