Reliability back analysis of shear strength parameters of landslide with three-dimensional upper bound limit analysis theory

Zhao, Lianheng; Zuo, Shi; Lin, Yuliang; Li, Liang; Zhang, Yingbin

doi:10.1007/s10346-015-0604-3

Cited by 43 publications

(9 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The spreadsheet-based method 41,42 is used to solve the key parameters X i . The reliability index β is expressed as the forms of Hasofer-Lind’s reliability index 43 ,where X denotes random variables, μ is the averaged value of the random variables, C x is the covariance matrix of variables, F is the failure domain.…”

Section: Methodsmentioning

confidence: 99%

Comprehensive analysis of landslide stability and related countermeasures: a case study of the Lanmuxi landslide in China

Han

et al. 2019

Sci Rep

View full text Add to dashboard Cite

We report on a comprehensive method for analyzing landslide stability and the mitigation effect of countermeasures in this paper. The proposed method is a combination of theoretical method and numerical method. To address the uncertainties of the soil strength parameters, the rational values of these parameters are comprehensively determined by the back-analysis result of the reliability method and the result by the quantitative method, as well as the in-situ geological test. To evaluate the slope stability, the limit analysis using the 2D upper bound method and the FEM simulation using strength reduction method are performed, respectively. In order to illustrate the presented method, the so-called Lanmuxi landslide in China is selected as a case study. Results demonstrated that the stress and strain majorly concentrated at the toe and crown of the slope. According to the analysis results, countermeasures consisting of anchor lattice beams, landslide piles, and cracks filling, are suggested to reduce the failure risk of the landslide. Effect assessment based on the FEM analysis verifies the feasibility and effectiveness of the recommended countermeasures.

show abstract

Section: Methodsmentioning

confidence: 99%

Comprehensive analysis of landslide stability and related countermeasures: a case study of the Lanmuxi landslide in China

Han

et al. 2019

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Chen [8] has systematically reviewed the theory. Zhao et al [9] proposed a new parameter back analysis method by combining the 2D/3D upper bound LAM and reliability theory to accurately determine the shear strength parameters for a 3D slope with a single failure surface. Adopting finite elements and linear programming, Sloan [10,11] and Kim et al [12] conducted both lower bound and upper bound analyses.…”

Section: Introductionmentioning

confidence: 99%

Stability Analysis of a Slope considering Two Reinforcement Processes

Chen

Ting

et al. 2020

Geofluids

View full text Add to dashboard Cite

The strength reduction method embedded in a distinct element code was used to analyse the stability of a slope in a coal mining area that had been reinforced twice, primarily with pile and retaining wall, followed by porous steel-tube bored grouting. For the primary reinforcement, the factor of safety was calculated, slip surface and failure mechanism were determined, and the damage phenomenon of primary reinforcement was analysed in detail. Failure time of slope without further strengthening was predicted by applying a new quantitative method based on monitoring displacement data. The slope instability at the primary reinforced stage was verified by these analyses. For the second reinforcement, the effect was evaluated by combining the new factor of safety and the final monitoring data, which validates the slope stability. Especially, variations of displacement and factor of safety due to water influence are analysed. Through this procedure, a systemic method for the slope safety evaluation and assurance is presented for engineering practice reference.

show abstract

“…RBD is widely used, especially in civil engineering, and has been applied to the study of slope stability (Li et al 2016;Zhao et al 2016;McGuire and VandenBerge 2017;Huang et al 2018). EN 1990(2002, the European standard that describes the basis for structural design, requires structures to be designed with an appropriate degree of reliability, which varies as a function of three reliability classes (RCs) for the ultimate limit state.…”

Section: Introductionmentioning

confidence: 99%

Reliability-based design for debris flow barriers

2019

View full text Add to dashboard Cite

In the European Union since 2010, the design of any type of structures must comply with EN-1997 Geotechnical Design (CEN 2004) (EC7) referring to engineering projects in the rock mechanics field. However, the design of debris flow countermeasures in compliance with EC7 requirements is not feasible: EC7 uses partial safety factors for design calculations, but safety factors are not provided for phenomena such as debris flows and rock falls. Consequently, how EC7 can be applied to the design of debris flow barriers is not clear, although the basic philosophy of reliability-based design (RBD), as defined in EN1990 (CEN 2002) and applicable to geotechnical applications, may be a suitable approach. However, there is insufficient understanding of interactions between debris flows and structures to support RBD application to debris flow barrier design, as full-scale experimental data are very limited and difficult to obtain. Laboratory data are available but they are governed by scale effects that limit their usefulness for full-scale problems. The article describes an analysis, using the first-order reliability method (FORM), of two different datasets, one obtained through laboratory experiments and the other reflecting historical debris flow events in the Jiangjia Ravine (China). Statistical analysis of laboratory data enabled a definition of the statistical distributions of the parameters that primarily influence debris flow and barrier interactions. These statistical distributions were then compared to the field data to explore the links between flume experiments and full-scale problems. This paper reports a first attempt to apply RBD to debris flow countermeasures, showing how the choice of the target probability of failure influences the barrier design resistance value. An analysis of the factors governing debris flows highlights the applicability and limitations of EN1990 and EN1997 in the design of these rock engineering structures.

show abstract

Reliability back analysis of shear strength parameters of landslide with three-dimensional upper bound limit analysis theory

Cited by 43 publications

References 34 publications

Comprehensive analysis of landslide stability and related countermeasures: a case study of the Lanmuxi landslide in China

Comprehensive analysis of landslide stability and related countermeasures: a case study of the Lanmuxi landslide in China

Stability Analysis of a Slope considering Two Reinforcement Processes

Reliability-based design for debris flow barriers

Contact Info

Product

Resources

About