›› 2009, Vol. 30 ›› Issue (S2): 509-513.

• Numerical Analysis • Previous Articles     Next Articles

Simulation on different excavation construction of the shallow-buried tunnel under the uneven rock pressure

ZHAO Yong-guo1, SHAO Sheng-jun2, HAN Chang-ling1   

  1. 1.Key Laboratory of Highway Construction & Maintenance Technology in Permafrost Regions, Ministry of Communications, Xi’an 710075, China; 2.Institute of Geotechnical Engineering, Xi’an University of Technology, Xi’an 710048, China
  • Received:2009-08-17 Online:2009-08-10 Published:2011-06-21

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Abstract: In accordance with the instance of shallow-buried tunnel in a highway project, it was analyzed that numerical simulation on excavation construction of the entrance of the shallow-buried tunnel under the uneven rock pressure. Firstly, the computational models in FEM were built in differently excavating cases which were often adopted in practice. Then the stability and the different distribution of deformation and stresses of the rock and liner of tunnel were discussed in the two excavating case. In the end, according to the analysis and results the preference of effective measures of excavation is suggested. In sum, the improvement scheme and research redound to the effective control of the stability of shallow-buried tunnel under the uneven pressure from stratum during construction.

Key words: tunnel, excavation, shallow-buried, uneven pressure, numerical simulation

CLC Number: 

  • U451
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