IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2013  > Vol10 No.6
High Slope Stability of Diversion Power System Intake of Jinchuan Hydropower Station
TANG Liang-qin; TANG Kui; NIE De-xin; WANG Jun-jie; LIU Dong-yan
Corresponding AuthorTANG Liang-qin
2013-12
Source PublicationJournal of Mountain Science
Volume10Issue:6Pages:1109-1117
AbstractThe excavated height of the left bank slope of the diversion power system intake in Jinchuan hydropower station is about 160 m. The stability and safety of the slope during construction and its operation/utilization become one of the most important geological engineering problems. At the same time, it is also crucial to select a safe and economic excavation gradient for the construction. We studied the problem of how to select a safe and economic slope ratio by analyzing the geological condition of the high slope, including the lithology, slope structure, structural surface and their combinations, rock weathering and unloading, hydrology, and the natural gradient. The study results showed that the use of an excavation gradient larger than the gradient observed during site investigation and the gradient recommended in standards and field practice manuals is feasible. Then, we used the finite element method and rigid limit equilibrium method to evaluate the stability of the excavation slope under natural, rainstorm and earthquake conditions. The calculated results showed that the excavated slope only has limited failure, but its stability is greatly satisfactory. The research findings can be useful in excavation and slope stabilization projects.
KeywordJinchuan Hydropower Station High Slope Excavation Slope Ratio Stability
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6539
CollectionJournal of Mountain Science_Journal of Mountain Science-2013_Vol10 No.6
Corresponding AuthorTANG Liang-qin
Recommended Citation
GB/T 7714
TANG Liang-qin,TANG Kui,NIE De-xin,et al. High Slope Stability of Diversion Power System Intake of Jinchuan Hydropower Station[J]. Journal of Mountain Science,2013,10(6):1109-1117.
APA TANG Liang-qin,TANG Kui,NIE De-xin,WANG Jun-jie,&LIU Dong-yan.(2013).High Slope Stability of Diversion Power System Intake of Jinchuan Hydropower Station.Journal of Mountain Science,10(6),1109-1117.
MLA TANG Liang-qin,et al."High Slope Stability of Diversion Power System Intake of Jinchuan Hydropower Station".Journal of Mountain Science 10.6(2013):1109-1117.
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