›› 2004, Vol. 25 ›› Issue (10): 1659-1662.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Fuzzy-random stability analysis of deep foundation pit

ZHANG Hai-tao1,2，HE Ya-bo3 ，XIAO Huan-xiong1   

  1. （1. School of Water Resources and Hydropower, Wuhan University, Wuhan 430072, China; 2. Department of Architectural Engineering, Jianghan University,Wuhan 430056, China; 3. School of Civil and Architectural Engineering, Wuhan University, Wuhan 430072, China
  • Received:2003-07-18 Online:2004-10-11 Published:2014-07-25

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Abstract: Fuzziness and randomness are two main uncertainties in the study of stability of deep foundation pit, randomness implies kinds of design parameters being random variables, and fuzziness means that the judgement criterion of stability should be regarded as a vague criterion, which has inexplicit outline, it is in accord with the fact of failure process. This paper emphasizes to study the fuzziness of stability analysis of deep foundation pit, by adopting fuzzy sets and probability theory, a generalized model of fuzzy-random has been put forward to evaluate the stability degree, in this model, the random character of mechanical parameters and the fuzziness of failure criterion, are considered. And it also discusses the failure probability standard of deep foundation pit. Finally, an example is given to calculate the fuzzy failure probability of soil uplift in the bottom of pit, the result indicates that the fuzzy-random method can reflect the actual stability of the foundation pit roundly and rationally.

Key words: deep foundation pit, stability, fuzzy-random, failure probability

CLC Number: 

  • TU473.2
  • 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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