›› 2006, Vol. 27 ›› Issue (8): 1272-1276.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Risk analysis for seepage failure in Banqiao River left levee

XING Wan-bo1, XU Wei-ya1, WEI Wen-bai2, WANG Kai3, YAN Xu3   

  1. 1. Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China; 2. Yuhuatai Water Conservancy & Agricultural Machine Bureau, Nanjing 210012, China; 3. Nanjing Water Conservancy Bureau, Nanjing 210008, China
  • Received:2004-09-16 Online:2006-08-10 Published:2013-11-26

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Abstract: Based on the case study of Banqiao River left levee, a feasible approach to risk analysis for seepage failure in levees with deterministic seepage FEM was proposed, according to which risk analysis of seepage failure was carried out, and an evaluation of seepage stability was made. The proposed approach could avail itself of the advantage of FEM, and calculate the downstream hydraulic gradient more accurately while considering the soil distribution more actually than those conventional approaches. With the theory of extreme point combination-monotonicity and “3?” Rule, the critical hydraulic gradient, critical risk coefficient of seepage failure and alarm water level for flood prevention in flood season for Banqiao River levee were set up by the failure case in 1995; that are of great significance to seepage stability evaluation. The analytical approach and the results will be practical and helpful in practice of seepage stability evaluation for flood control engineering.

Key words: risk analysis, seepage failure, levee, risk coefficient, seepage stability

CLC Number: 

  • TU 454
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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