›› 2000, Vol. 21 ›› Issue (2): 126-129.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Identification of initial stress field parameters in the rock mass with the stochastic method

Li Shouju , Liu Yingxi, Wang Denggang；Liu Yujing   

  1. ( Department o f Engineering Mechanics, Dalian University of Technology , Dalian 116023, China) ( Changchun Coal management Cadre Institute, Changchun 130012, China )
  • Received:1999-05-24 Online:2000-06-20 Published:2016-12-12

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Abstract: By means of the least square method, the initial stress field parameters are identified according to the measured data of transformation of the rock when the underground tunnel is excavated. Considering the stochastic characteristic, a stochastic method to identify the initial stress parameters in rock mass is established in this paper. The affection of the stochastic characteristic of the transformation measurement is studied as well. The numerical results show that the lower the sensibility of the objective function to the identified parameters, the larger the standard deviation of the identified results, and the worse the identifiable characteristic of the parameter.

CLC Number: 

  • TV 223.1
  • 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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