Application of Bayesian Method in Stochastic Analysis of Rock Slope Stability

Abstract:

The analysis of structural plane in rock slope is of vital importance to stability analysis of rock slope. In this paper, Bayesian method was adopted in the analysis of shear strength parameters along the fault in the West Slope of Upper Reservoir, Shisanling Pumped Storage Power Station. Full advantage was taken of the geological information outside the structural plane along with the practical experience of on-site engineers. The statistical estimation problem of small samples thus was successfully solved. The determination of sliding plane in rock slope is another key issue in the stability analysis of rock slope. The cracking process was utilized to track the most possible sliding plane in the slope. In consideration of the randomicity of both mechanical parameters of rock and structural plane and resistance of slide resistant piles, reliability index of slope stability was established with the aid of discretized dimensional reduction method of reliability and conditional probability.

• Periodical: Applied Mechanics and Materials (Volumes 94-96)
• Pages: 516-519
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.94-96.516
• Online since: September 2011
• Authors: Qing Lian Shu, Ling Qiang Yang, Pan Ying Zang
• Keywords: Rock Slope, Shisanling Pumped Storage Power Station, Stability Analysis

References

[1] Wang Laigui, Huang Yunqiu, Zhang Zhuoyuan, et, al. . "The analysis on whole procedure of the deformation and sliding of slope mechanical system which contains structure area". The Chinese journal of geological hazard and control. 1997, 8(1):17-22.

[2] Zhang Lei.. "Probability analysis method for the stability of grid and bedded rock slope". Chinese Journal of Rock Mechanics and Engineering. 2002, 21(3): 349-352.

[3] Wang Jiachen. "Stochastic theory in slope". Beijing：China coal engineer press. (1996)

[4] Yang Lingqing, Lian Jijian, Zhang sherong, et. al. "Analysis of breaking and overloading of arch dam" . Chinese Journal of hydraulic engineering, 2003, (3):55-63.

[5] Huang Zhenxing, Cheng Xuewen, Hou Jianguo. "The credibility analysis and ascertain subentry coefficient in hydraulic concrete structure". In：Unite standard subject of hydraulic structure credibility Conference. Chengdu: Sichuan science and technical press in Chinese. 1994, 34-62.

[6] Yang Lingqing, Lian Jijian, Chen Zuping. "Analysis on contact problem and intension problem of soft interlayer". Chinese Water resources and hydropower engineering. 2002, (6)：17-20.

[7] Yu Maohong. "Engineer strength theory" . Beijing: China high education Press 2002.