Probabilistic Slope Stability Analysis: The Case Study of a Deposit Slope in Hydropower Reservoir

Author

Yan Fei ; Lan Yucheng

Author_Institution

Eng. Survey Branch, Broadvision Eng. Consultants, Kunming, China

fYear

2013

fDate

29-30 June 2013

Firstpage

948

Lastpage

951

Abstract

The effects of uncertainty due to the variability of soil properties, pore pressure, and earthquake forces on the stability of a deposit slope in the hydropower reservoir are investigated. The spatial variability of soil properties is incorporated in the probabilistic slope stability analysis by a random field model, and a sensitivity analysis is conducted considering spatial variability of soil properties. Cutting the slope can reduce the risk of slope failure, which has been corroborated by the probabilistic slope stability analysis. The sensitivity analysis shows that additional measures such as drainage and toe protection can help stabilize the slope before reservoir filling.

Keywords

cutting; earthquakes; failure (mechanical); filling; hydroelectric power; mechanical stability; probability; reservoirs; sensitivity analysis; soil; cutting; drainage; earthquake forces; hydropower reservoir; pore pressure; probabilistic slope stability analysis; random field model; reservoir filling; sensitivity analysis; slope deposit stability; slope failure risk reduction; soil properties; spatial variability; toe protection; Earthquakes; Filling; Friction; Probabilistic logic; Reservoirs; Soil; Stability analysis; Slope stability; deposit slope; earthquake; probabilistic analysis; reservoir filling; uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Manufacturing and Automation (ICDMA), 2013 Fourth International Conference on

Conference_Location

Qingdao

Type

conf

DOI

10.1109/ICDMA.2013.222

Filename

6598146