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| RELIABILITY ANALYSIS FOR TRANSLATIONAL FAILURE OF LANDFILLS WITH AN ENGINEERED BERM |
| RUAN Xiaobo1,SUN Shulin2,3,HAN Xiaofeng2,LIU Wenliang2 |
| (1. College of Civil and Transportation Engineering,Hohai University,Nanjing,Jiangsu 210098,China;2. College of Earth Sciences Engineering,Hohai University,Nanjing,Jiangsu 210098,China;3. State Key Laboratory of Hydrology,Water Resources and Hydraulic Engineering,Hohai University,Nanjing,Jiangsu 210098,China) |
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Abstract The stability of the landfill with an engineered berm against translational failure is studied by considering the randomness of the physical and mechanical parameters of the solid waste. Under the conditions of the trapezoidal three wedge method and reliability analysis method being used to the landfill with an engineered berm,the reliability index is calculated by the first order second moment method,considering the unit weight,internal friction angle,and cohesion of solid waste as random variables subjected to independent normal distribution. The results show that the requirement of safety factor with different failure modes is not the same so as to make the reliability index get to 3.0. Also,combining the safety factor with the reliability index can better assess the slope stability of the landfill with an engineered berm.
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Received: 31 May 2013
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