A comparative study of slope stability methods and mitigative design of a highway embankment landslide with a potential for deep seated sliding

Al‐Homoud, Azm S.; Tal, Ahmad B.; Taqieddin, Salah A.

doi:10.1016/s0013-7952(97)00016-1

Cited by 25 publications

(4 citation statements)

References 3 publications

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“…This was shown by, for example, Poisel et al 2009 [28], who conducted an analysis of the structure and mechanism of formation of a mountain landslide on the basis of geological structure. In another example, Al-Homoud et al 1997 [29] described the stabilization of a high building. Salcedo 2009 [30] described a road bridge catastrophe caused by a large landslide crossing a road section.…”

Section: Issues Related To the Control Of Structural Landslides With A Determinate Slip Contact Layermentioning

confidence: 99%

Stabilization of Landslides Sliding Layer Using Electrokinetic Phenomena and Vacuum Treatment

Ukleja

2020

Geosciences

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The article presents the efficiency of application of cohesive soil dewatering for increasing its resistance to shearing, which influences the mass stability of flysch rock. Studies of the typical soil constituting the contact layer initiating the sliding of existing Carpathian flysch landslides were conducted. This aspect was examined because the water content of this soil decides its ability to form a sliding surface of the landslide block soil. The soil was subjected to changes in water content by dewatering with different methods. The influence of dewatering by self-acting gravitational outflow was examined and was additionally aided by two selected methods: electrokinetic phenomena and vacuum treatment. The model study conducted demonstrates the influence of the abovementioned dewatering methods on increasing the strength parameter of the soil at the contact layer in which sliding surfaces can be created. The paper also demonstrates the degree to which the application of the vacuum and electrokinetic treatment caused by DC current voltage influences the draining, decrease of plasticity, and increase of soil shear stress resistance. The application conditions and increase in effectiveness due to the application of the studied methods were determined. The proposed methods allowed for the strengthening of slopes for two exemplary landslides which formed in the area of occurrence of the Carpathian flysch.

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Section: Issues Related To the Control Of Structural Landslides With A Determinate Slip Contact Layermentioning

confidence: 99%

Stabilization of Landslides Sliding Layer Using Electrokinetic Phenomena and Vacuum Treatment

Ukleja

2020

Geosciences

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“…Moreover, the embankment slope can be categorized into natural embankment slope or construction processed embankment slope. Also, most of the fill slopes are often found in construction projects, which are characteristics of the embankment slope [1,2].…”

Section: Introductionmentioning

confidence: 99%

Analysis of embankment slope stability: the comparison of finite element limit analysis with limit equilibrium methods

Yingchaloenkitkhajorn

2019

MATEC Web Conf.

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This paper presented the analysis of embankment slope stability by considering the problem of embankment slope stability with special effects that it was filled with sand and was placed on purely cohesive clay. The finite element limit analysis of two-dimensional plane strain was employed to analyze the stability of this problem. The embankment slope height (H), the depth factors (d/H) and the embankment slope angle (β) for the finite element limit analysis of sand was modeled as a volume element with the properties of Mohr-Coulomb material in drained condition. And the clay was modeled as a volume element with the properties of Tresca material in undrained condition where the parameters were soil unit weight (γ), undrained shear strength (su) and friction angle (φ′). Parametric studies consisted of three dimensionless variables including depth factors (d/H), friction angle (φ′) and embankment slope angle (β). Results were summarized in the form of the dimensionless stability number (su/γH(FS)) and the design chart and application were presented. In addition, the comparison of the solution of stability number with the limit equilibrium methods and the failure mechanisms were also proposed in this paper.

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“…Transportation corridors, especially in the mountains, are frequently exposed to natural hazards, such as rockfalls (Budetta, 2004;Bunce et al, 1997) or landslides (Al-Homoud, 1997;Collins, 2008;Guemache, 2011;Salcedo, 2009) according to the definitions of landslide types and processes from Cruden and Varnes (1996) and Hungr et al (2012). Those natural hazards may threaten road users at different levels, including human, social and economic levels causing injuries, deaths, damages and delays (Bunce et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

“…For the Alps, some research works have also been published in Baillifard et al (2003) and Michoud et al (2012) or within international research projects like MASSA (2010, for Medium And Small Size rock fall hazard Assessment, in Switzerland, Italy and France). Cost/benefit analyses have also been produced in the case of a road closing (Wilhelm, 1997).…”

Section: Introductionmentioning

confidence: 99%

Dynamic risk simulation to assess natural hazards risk along roads

Voumard

Caspar

Derron

et al. 2013

Nat. Hazards Earth Syst. Sci.

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Abstract. Risk generated by natural hazards on roads is usually calculated with equations integrating various parameters related to hazard and traffic. These are static variables, like an average number of vehicles crossing this section every day and an average vehicle speed. This methodology cannot take into account dynamic variations of traffic and interactions between vehicles such as speed modifications due to windy roads, slowdowns resulting from saturated traffic or vehicle tailbacks forming in front of traffic lights.Here we show, by means of a dynamic traffic simulator, that traffic variations may greatly influence the risk estimation over time. The risk is analysed on several sections of an Alpine road in Switzerland using a dynamic vehicles approach, and compared with the results of the static methodology. It demonstrates that risk can significantly increase on sinuous sections because of decreasing vehicle speed. For example, along an 800 m-long section of road containing two hairpin bends, the dynamic risk is about 50 % higher than the static one. Badly placed signalization, slowing down, or stopping the vehicles in a hazardous area may increase the risk by about 150 % (i.e. 2.5 times higher) along a straight road section where vehicles speed is high.A more realistic risk can thus be obtained from a dynamic approach, especially on mountain roads. The dynamic traffic simulator developed for this work appears to be a helpful tool to support decision-making in reducing risk on mountain roads and it shows the importance of keeping the traffic moving as freely as possible.

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A comparative study of slope stability methods and mitigative design of a highway embankment landslide with a potential for deep seated sliding

Cited by 25 publications

References 3 publications

Stabilization of Landslides Sliding Layer Using Electrokinetic Phenomena and Vacuum Treatment

Stabilization of Landslides Sliding Layer Using Electrokinetic Phenomena and Vacuum Treatment

Analysis of embankment slope stability: the comparison of finite element limit analysis with limit equilibrium methods

Dynamic risk simulation to assess natural hazards risk along roads

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