Numerical methods in the stability analysis of slopes

Pasternack, S.; Shi-hang, Gao

doi:10.1016/0045-7949(88)90291-x

Cited by 21 publications

(2 citation statements)

References 6 publications

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“…As a result, different types of slopes formed by different construction procedures give the same FoS provided they are comprised of the same material and have identical geometric features (Abramson 2002). Pasternack and Gao (1988) found that a limit equilibrium analysis often yields a satisfactory FoS in terms of catastrophic failure, but unsatisfactory FoS in terms of lateral movements. In addition, time-dependent changes in hydro-mechanical processes (e.g.…”

Section: Methods Of Slope Stability Analysismentioning

confidence: 99%

Stability and characterisation of spoil heaps in European surface lignite mines: a state-of-the-art review in light of new data

et al. 2019

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The large amount of spoil material produced during the mining process imposes a significant economic and environmental liability on lignite producers. In this context, the present paper provides an overview of the geotechnical characteristics of European lignite mine spoil heaps and discusses their significance to the stability of the heaps. In order to achieve this, samples collected from spoil heaps of Polish, Czech and Greek mines are analysed and the results are compiled with data from the literature. A major conclusion drawn is that both physical and engineering properties of spoil heaps indicate a noteworthy variability, which is larger than typical in situ ground material. This is because of the additional factors affecting spoil heap deposition, such as the transportation and dumping method. Furthermore, failure mechanisms and case histories of large instabilities in lignite spoil heaps are critically discussed in order to better understand triggering failure mechanisms. It is concluded that classical assumptions made for natural soil slopes and relevant limit equilibrium models should be cautiously applied to spoil heaps. The challenges associated with numerical and probabilistic modelling of spoil heap stability, such as the inherent spatial variability of spoils and the time-dependent changes in their geotechnical properties, are also critically discussed. Finally, important research gaps in design and analysis of spoil heap stability, such as the absence of appropriate constitutive models developed specifically for spoil materials, are summarised.

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Section: Methods Of Slope Stability Analysismentioning

confidence: 99%

Stability and characterisation of spoil heaps in European surface lignite mines: a state-of-the-art review in light of new data

et al. 2019

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“…Basic principle of flac is the same as Discrete Element Method [1] ,however it is applicable to solve regular region problems with a variety of materials and boundary conditions. Flac uses explicit finite difference analysis method to solve the basic equation of motion.…”

Section: Introductionmentioning

confidence: 99%

Stability Analysis of High-Filling Embankment Based on Nonlinear Finite Element Method

Yang

Kang

et al. 2013

AMM

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To construct high grade road in the mountain area will meet the high rock filled embankment inevitably, the high rock filled embankment has become one important temp of the roadbed structure. This paper based on nonlinear elastic-plastic finite element method, by means of numerical simulation, under the stress of weight, external load, strain and displacement variation analysis, which can provide more reliable parameters for the design of High-filling embankment.

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