›› 2012, Vol. 33 ›› Issue (7): 2041-2047.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

An equivalent seepage resistance model with seepage-stress coupling for fractured rock mass

TAO Yu1, 2, LIU Wei-qun1, 2   

  1. 1.School of Mechanics and Civil Engineering, China University of Mining & Technology, Xuzhou, Jiangsu 221116, China; 2. State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining & Technology, Xuzhou, Jiangsu 221116, China
  • Received:2011-04-11 Online:2012-07-11 Published:2012-07-13

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Abstract: Seepage characteristics of regional principal fratured rock mass are studied with the effect of stress. Using parallel plate model, elastic mechanics and electronics in single fracture, a new conception of equivalent seepage resistance is put forward. On the basis of the geometric construction of regional principal fracture, an equivalent seepage resistance model with seepage-stress coupling is established. With the model the relationships between equivalent seepage resistance, permeability and stress are obtained, which is helpful to the stress-seepage coupling characteristics of regional principal fractures in rock mass. Combining a case study with the model, the seepage laws of the herring-bone combined fracture are researched. Through further detail partition and consideration, this model can be used to study fracture seepage evolution law affected by in-situ stress in rock mass containing regional principal fracture.

Key words: seepage, fractured rock mass, seepage resistance, stress coupling, model

CLC Number: 

  • TU 452
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