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《Chinese Journal of Underground Space and Engineering》 2007-02
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Analysis of Construction Mechanical Behavior for Wushaoling Tunnel F7 Fault

ZHAO Xu-feng1,WANG Chun-miao2 (1.Department of Geotechnical Engineering,Tongji University,Shanghai 400045,P.R.China 2.College of Civil Engineering,Southeast University,Nanjing 210006,P.R.China)  
According to the characteristics of engineering geology and support design for weak rock,the mechanical behaviors were analyzed considering the construction of Wushaoling tunnel F7 weak fault of surrounding rocks.Based on the theory of rocks rheology and construction mechanics,the stress and displacement of the rock were investigated,and the 3-D time and space effects of the excavation face was analyzed for explaining the squeezing large displacement during construction.The method effectively coupled the effect of excavation face and the time-dependent effect of weak rock.Considering the rheology characteristic of weak rocks,the time-dependent stress and displacement of rocks and support system was investigated,and the calculation results were compared with the field data.The present research made the mechanical calculation to be joined effectively with the informatization design and construction of tunnel,and enriched the theory of construction mechanics of tunnel.
【CateGory Index】: U451
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