Geomechanics and Engineering

Techno-Press (테크노프레스)
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Influence of fracture characters on flow distribution under different Reynold numbers

  • Wang, Jing (Geotechnical and Structural Engineering Research Center, Shandong University) ;
  • Li, Shu-Cai (Geotechnical and Structural Engineering Research Center, Shandong University) ;
  • Li, Li-Ping (Geotechnical and Structural Engineering Research Center, Shandong University) ;
  • Gao, Cheng-Lu (Geotechnical and Structural Engineering Research Center, Shandong University)
  • Received : 2017.04.19
  • Accepted : 2017.07.11
  • Published : 2018.02.10
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Abstract

Water inrush through the destruction of water resisting rock mass structure was divided into direct water inrush, key block water inrush and splitting water inrush. In the direct water inrush, the Reynolds numbers has a significant effect on the distribution of the water flow and vortex occurred in the large Reynolds numbers. The permeability coefficient of the fracture is much larger than the rock, and the difference is between 104 and 107 times. The traditional theory and methods are not considering the effect of inertia force. In the position of the cross fracture, the distribution of water flow can only be linearly distributed according to the fracture opening degree. With the increase of Reynolds number, the relationship between water flow distribution and fracture opening is studied by Semtex.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China, South China University of Technology, China University of Mining & Technology

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