›› 2008, Vol. 29 ›› Issue (5): 1391-1395.

• Geotechnical Engineering • Previous Articles     Next Articles

Construction scheme design for deep foundation pit constructed by “top-down” method based on 3D FEM

RUI Rui, XIA Yuan-you   

  1. School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China
  • Received:2006-08-10 Online:2008-05-10 Published:2013-07-24

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Abstract: Construction scheme design of diaphragm wall deep foundation pit constructed by “top-down” method based on 3D FEM is researched; and design method according to deformation control is put forward. The oversized deep foundation pit of Hutchison Whampoa Ltd. project in China’s Tianjin is calculated and designed as an example. Firstly, structure design of the slabs under vertical load is done. Secondly, three design schemes are put forward based on the structure design and 3-D FEM models of which are established; and every state of each scheme is calculated respectively. The stress and deformation of the diaphragm and slab under different states are obtained. The key state of construction and the weak parts of the whole structure are found out. At last, with consideration of the practical situation, advantages and deficiencies of the schemes are analyzed. Optimal scheme is selected by synthetical consideration.

Key words: deep foundation pit, “top-down&rdquo, method, 3D FEM, scheme design, deformation control

CLC Number: 

  • TU 471.8
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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