›› 2009, Vol. 30 ›› Issue (4): 1147-1152.

• Numerical Analysis • Previous Articles     Next Articles

Analysis of hydro-mechanical interaction in hydraulic tunnel with inner water exosmosis

SU Kai，WU He-gao   

  1. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
  • Received:2007-09-06 Online:2009-04-10 Published:2011-01-30

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Abstract:

Given water load as a kind of body load, the nonuniformity coefficients of reinforcement strain and concrete strain are introduced to compute the lining’s permeability coefficient. A water-filled joint element is developed to simulate the limited cooperation between reinforced concrete lining and surrounding rock; and an equivalent method is adopted to develop the program, The reinforcement stress and the rock stresses in hydraulic tunnel with inner water exosmosis are calculated. The results show that the reinforcement stress obtained by the new method is smaller than that of the traditional method. The fact that the reinforcement stress in the reinforced concrete tunnel under high inner water load is in a lower level, is verified.

Key words: hydraulic tunnel, inner water exosmosis, interaction, cooperation, water-filled joint element

CLC Number: 

  • TV B9.14
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