The Stability Analysis of Over-Dip Stratoid Structure Rock Slope

Abstract:

The rock mass structure of granite is massive, so the stability of granite slope is good. Massive rock become stratoid structure when the rock mass contain discontinuities such as joints and faults. The deformation and destruction of the slope rock mass is controlled by the behaviour and orientation of the discontinuities. Especially, the over-dip discontinuities controlled the slope stability. In this paper, based on the abundant field investigation on the slope in left bank diversion tunnel inlets of Nuozadu power station in Lancang River, the types of rock mass structures and the combination between structural planes and slope surface are studied in detail so as to analyze the slope deformation mechanism. Finally, the slope stability is researched systematically by limit equilibrium method and FLAC numerical simulation analysis. A set of technical and methodological system on stability research of over-dip stratoid structure rock slope will hoped to be established.

• Periodical: Advanced Materials Research (Volumes 446-449)
• Pages: 1963-1966
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.446-449.1963
• Online since: January 2012
• Authors: Shu Qiang Lu, Mo Xu
• Keywords: Deformation and Destruction, Engineering Slope, Granite, Stability, Stratoid Structure

References

[1] Fan Wen, Yu Maohong and Li Tonglu: Failure pattern and numerical simulation of landslide stability of stratified rock Mater. Chinese Journal of Rock Mechanics and Engineering, Vol. 19, (2000), pp.983-986. (In Chinese)

[2] Sun Guofu, Lu Weining and Tao lianjin: Failure mechanism and modeling of excavation effect for steep over-dip stratified rock slope. Chinese Journal of Geotechnical Engineering, Vol. 25, (2003), pp.697-701. (In Chinese)

[3] Zhang Zhuoyuan, Wang Shitian and Wang Lansheng: Principle of engineering geology analysis. Geological Publishing House, Beijing (2009). (In Chinese)