›› 2009, Vol. 30 ›› Issue (9): 2869-2874.

• Numerical Analysis • Previous Articles     Next Articles

Solution charts for consolidation analysis of strip footings embedded in a finite stratum

ZHANG Wen-wei1, MENG Qing-shan2, ZHU Guo-fu1, WANG Ren2   

  1. 1. Department of Engineering Structures and Mechanics, Wuhan University of Technology, Wuhan 430070, China; 2. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
  • Received:2009-02-19 Online:2009-09-10 Published:2010-03-24

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Abstract:

The finite element method is used to investigate the consolidation behaviour of strip footings embedded in a finite stratum based on Biot’s consolidation theory. The calculation is carried out using a well-known finite element software, ABAQUS. The influences of three factors: (1) the ratio of buried depth to the thickness of the stratum, (2) the ratio of footing width to the thickness of the stratum, (3) the Poisson’s ratio of the soil skeleton on the average degree of consolidation settlement have been examined. Based on the results of analysis, a new normalized dimensionless time is suggested. Solution charts for determining the average degree of consolidation settlement of strip footings embedded in a finite stratum are presented. The charts can provide engineers with a quick answer to the design issues. The maximum error caused by using the solution charts is within 3 %.

Key words: consolidation, embedded strip footing, solution charts, finite element method, coupled analysis

CLC Number: 

  • TU 411.5
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