Uncertainty in Back Analysis of Slopes: Kettleman Hills Case History

Gilbert, Robert B.; Wright, Stephen; Liedtke, Eric

doi:10.1061/(asce)1090-0241(1998)124:12(1167)

Cited by 69 publications

(18 citation statements)

References 14 publications

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“…Analyses of the Kettleman Hills waste landfill slope failure have been carried out by a number of investigators since the failure (Seed et al 1990;Byrne et al 1992;Gilbert et al 1998;Filz et al 2001;Chang 2005;Zheng 2009). In this study, the proposed method is used to evaluate the stability of the pre-slide Kettleman landfill of safety is slightly more than unity, indicating that the Phase I-A landfill was marginally stable: this matched field observations before failure.…”

Section: Engineering Applicationsmentioning

confidence: 99%

A rigorous method for three-dimensional asymmetrical slope stability analysis

Jiang

Zhou

2018

Can. Geotech. J.

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Most slope failures exhibit remarkable asymmetrical variation in the transverse direction. A rigorous method satisfying all six equilibrium conditions is proposed for evaluating three-dimensional (3-D) asymmetrical slope stability. As there is no need to predefine a symmetrical plane in this analysis, the method is applicable to slopes with complex geometries, geologies, and loading conditions. The proposed method can not only calculate the factor of safety, but also predict the direction of sliding of the potential failure mass. Global equilibrium equations are formulated in light of the safety factor, sliding direction, and an assumed distribution of normal stress on the slip surface. The Newton method is then used to solve these equations, which has been proven to enjoy both a large range of convergence and a fast convergence rate. Thereafter, physical admissibility conditions of the solutions, and the effects of the size of discretized columns on solution accuracy, are discussed in the present 3-D analysis. The method is validated by using five typical examples documented in the literature. The failure of the Kettleman, California, waste landfill slope is also re-evaluated using the proposed method. The calculated stability and direction of sliding match field observations.

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Section: Engineering Applicationsmentioning

confidence: 99%

A rigorous method for three-dimensional asymmetrical slope stability analysis

Jiang

Zhou

2018

Can. Geotech. J.

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“…The actual mobilized shear strengths along the liner interface were subject to significant uncertainties due to complex shearing conditions and unknown water conditions (Gilbert et al, 1998). The composite liner system was generally unsaturated and was partially beneath side slopes where the interface shear strength was mobilized (Sharma et al, 2007;Bouazza et al, 2013).…”

Section: Kettleman Hills Landfill Failurementioning

confidence: 99%

The influence of the unsaturated soil zone on 2-D and 3-D slope stability analyses

Zhang

Fredlund

et al. 2015

Engineering Geology

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“…The errors are small, in spite of the large time span between the estimates, which is a reflection of the sophistication of the analytical methods used for comparison. The case of Kettleman Hills (Gilbert et al 1998) has the largest because of the complex geometry and material properties. Another approach is to compare the calculated failure load with that from a well-controlled experiment, such as the centrifuge test.…”

Section: Analytical Modelmentioning

confidence: 99%

Geotechnical Uncertainties and Reliability-Based Design

2013

Foundation Engineering in the Face of Uncertainty

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A rational approach to uncertainties in geotechnical design is reliability-baseddesign (RBD) and a readily useable form is Load Resistance Factor Design (LRFD). In LRFD, load and resistance factors are used to obtain an acceptable level of reliability or failure probability. This paper reviews the development of reliability-based design and the various uncertainties that control the resistance factor. These include uncertainties about material models, analytical models and methods for reliability assessment. Data available from various sources are compared. The estimated uncertainties are compared with observed performance from case histories and current design codes. Implications on use of LRFD in practice are suggested. Uncertainty about the load is not considered here because an extensive literature already exists.

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Uncertainty in Back Analysis of Slopes: Kettleman Hills Case History

Cited by 69 publications

References 14 publications

A rigorous method for three-dimensional asymmetrical slope stability analysis

A rigorous method for three-dimensional asymmetrical slope stability analysis

The influence of the unsaturated soil zone on 2-D and 3-D slope stability analyses

Geotechnical Uncertainties and Reliability-Based Design

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