Author(s): X. Wu; L. Dind; D. Sun
Linked Author(s):
Keywords: Dike; Sensitivity; Reliability; Design; Monte Carlo simulation
Abstract: A probabilistic design method is proposed based on reliability analysis. According to the empirical expression of code, limit state equations of overtopping, seepage stability and slope stability of the typical dike with inclination watertight facing and on two-phase fluvial facies base are formulated. The Monte Carlo method is employed to assess the stability. The influence of the geometry parameters, such as the height, slope ratio of upstream and downstream, crest width of dike, thickness and permeability coefficient of clay stratum, permeability coefficient of sand stratum, width of outer berm, width of downstream gland and thickness of downstream gland, on the reliability index of dike is discussed in detail. Furthermore, the design process for this type of dike is suggested. Some conclusions will be helpful to the optimization of dike design.
Year: 2003