DOI: 10.1007/s11069-020-04399-6
论文题名: A siphon drainage method for stabilizing bank slopes under water drawdown condition
作者: Yu Y. ; Lv C. ; Wang D. ; Ge Q. ; Sun H. ; Shang Y.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 105, 期: 2 起始页码: 2263
结束页码: 2282
语种: 英语
中文关键词: Bank slope
; Numerical simulation
; Siphon drains
; Water drawdown
英文关键词: computer simulation
; drain
; drainage
; drawdown
; numerical model
; seepage
; slope stability
; stabilization
; water table
; Chen chen
英文摘要: Drawdown of reservoir water level is unfavorable to the bank slope stability due to the large seepage force. In this paper, the siphon drainage method is proposed to decrease the water table as well as the seepage force in the bank slope. The novelty of the siphon drainage used in the bank slope is that it will automatically start working when the drawdown of the reservoir water level occurs. To validate the feasibility of the proposed method, a numerical method which combines GeoStudio and spreadsheet is used to investigate the pore water pressure distribution and evaluate the safety of the bank slope. The “air element method” is adopted in GeoStudio to simulate siphon drains. Chen-Morgenstern generalized equations are modified to consider the hydrostatic force of reservoir water and the suction strength of unsaturated soil. The modified equations are then incorporated in the spreadsheet to calculate the FOS of the bank slopes with siphon drains. The proposed method is illustrated and validated with the Shuping landslide, China. The advantages of the siphon drains are also discussed by comparing with traditional horizontal drains. © 2020, Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169494
Appears in Collections: 气候变化与战略
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作者单位: Ocean College, Zhejiang University, Zhejiang Province, Zhoushan, 316021, China; College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310058, China
Recommended Citation:
Yu Y.,Lv C.,Wang D.,et al. A siphon drainage method for stabilizing bank slopes under water drawdown condition[J]. Natural Hazards,2021-01-01,105(2)