›› 2005, Vol. 26 ›› Issue (6): 845-849.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on mechanical model of vault roof stability at advance of working face of tunnel

YIN Guang-zhi1,2, YUE Shun1, DAI Gao-fei1,3   

  1. 1. College of Resources and Environmental Science, Chongqing University, Chongqing 400044, China; 2. The Key Laboratory of Exploitation of Southwest Resources & Environmental Disaster Control Engineering, Ministry of Education, Chongqing University,Chongqing 400044, China；3. South Construction Branch, Chongqing Expressway Development Co. Ltd., Chongqing 400067, China
  • Received:2005-03-08 Online:2005-06-10 Published:2013-12-17

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Abstract: According to the surrounding rockmass deformation parameters, the movement law of overlying strata and the distribution of rock stresses will be obtained which will be beneficial to engineering and management. Based on the geology and engineering conditions of rockmass in tunnel, the mechanical model of two parameters elastoplastic foundation beam is proposed and the space curve differential equations, the foundation beam differential equations are analyzed. This model is valuable to research the dynamical phenomenon, such as the rockburst and failure phenomena at working face; so it will be a basis to predict surrounding rock masses deformations.

Key words: tunnel, overlying strata, mechanical model, yielding region, subsidence velocity

CLC Number: 

  • TU 473
  • 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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