Analysis on Fracture Mechanics of Unstable Rock - World Journal of Engineering and Technology

WJET > Vol.4 No.3, September 2016

Analysis on Fracture Mechanics of Unstable Rock ()

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Download as PDF (Size: 341KB) PP. 69-75

DOI: 10.4236/wjet.2016.43C009 1,813 Downloads 3,533 Views Citations

Author(s)

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

Affiliation(s)

College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, China.

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.

KEYWORDS

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

Share and Cite:

Chen, S. , Chen, H. , Yang, M. , Chen, T. and Guo, K. (2016) Analysis on Fracture Mechanics of Unstable Rock. World Journal of Engineering and Technology, 4, 69-75. doi: 10.4236/wjet.2016.43C009.

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