• OpenAccess
  • Analysis on Fracture Mechanics of Unstable Rock  [DPM 2016]
  • DOI: 10.4236/wjet.2016.43C009   PP.69 - 75
  • Author(s)
  • Siqi Chen, Hongkai Chen, Ming Yang, Tao Chen, Kexuan Guo
  • Unstable rock is a kind of global geological disaster with high frequency. This paper, considering three kinds of combined loads which are gravity, fracture water pressure and seismic force, constructs a unstable rock mechanics model and it uses a fracture mechanics method to deduce the composite stress intensity factor of the type I - II. Based on the maximum circumferential stress theory, this article calculates the theo-retical fracture angle by triangle universal formula.
  • Fracture Mechanics, Composite Stress Intensity Factor, Fracture Angle, Unstable Rock
  • References
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