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has been cited by the following article:

• TITLE: Analysis on Fracture Mechanics of Unstable Rock

  AUTHORS: Siqi Chen, Hongkai Chen, Ming Yang, Tao Chen, Kexuan Guo

  KEYWORDS: Fracture Mechanics, Composite Stress Intensity Factor, Fracture Angle, Unstable Rock

  JOURNAL NAME: World Journal of Engineering and Technology, Vol.4 No.3C, September 22, 2016

  ABSTRACT: 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.