›› 2006, Vol. 27 ›› Issue (S1): 701-705.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Internal force and deformation by 3D finite element analysis of support system of a typical deep excavation on soft ground

XIONG Chun-bao 1，LEI Li-gang1，ZOU Ke-peng2，YANG Hua-jing3   

  1. 1. School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2. Bureau of Construction and Development, TEDA, Tianjin 300450, China; 3. Department of Pipe Engineering, Tianchen Chemical Engineering Corporation, Tianjin 300400, China
  • Received:2006-07-28 Published:2006-12-15

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Abstract: The three-dimensional finite element analysis (3D FEA) of support system is carried out with the help of ABAQUS. It is about the internal force and deformation of a typical deep foundation pit during the foundational construction at Tianjin Economical Development Area (TEDA), which is famous for its soft ground. The method of active and inactive element can simulate the excavation progress better; and also solid elements for soil and support system are employed in order to reduce the error produced by degree-of-freedom coupling of different kinds of elements. By comparing the internal force and deformation of the support system of theoretical analysis with the results of field monitoring, it shows that the accuracy of 3D FEA is sufficient for theoretical analysis. The method and conclusions are useful for other similar projects of design and construction of deep foundation pit on soft ground.

Key words: solid element, deep excavation pit, internal force and deformation of support system, three-dimensional finite element analysis(3D FEA), construction monitoring

CLC Number: 

  • O 242.21
  • 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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