›› 2011, Vol. 32 ›› Issue (S1): 438-0444.

• Geotechnical Engineering • Previous Articles     Next Articles

Optimization of supporting schemes for deep foundation pit based on fuzzy grey relation projection method

WEI Xin-jiang1, 2, YU Yin1, ZHANG Shi-min2   

  1. 1.Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China; 2. City College Zhejiang University, Hangzhou 310015, China
  • Received:2010-12-22 Online:2011-05-15 Published:2011-05-16

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Abstract: According to the characteristics of the decision factors of supporting schemes for deep foundation pit, such as information incompleteness and their gray correlation, using gray system theory, vector projection synthetically and fuzzy mathematic theory, a fuzzy gray relation projection method for the optimization of supporting schemes is established based on the gray relation projection method. Combined weights are used to interpret the impact of various factors more reasonable. A method for sensitivity analysis which bases on the distinguishing degree of the optimal plan is presented. Then the model is proved scientifically and effective by an example and easy to realize programmed. The algorithm which has the high sensitivity level offers more reliable basis for decision-making. So it has some generalization and application value

Key words: deep foundation pit, supporting schemes, grey relation projection, setting value statistics, sensitivity analysis

CLC Number: 

  • TU 470
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