Natural slopes and cuts: movement and failure mechanisms

Leroueil, Serge

doi:10.1680/geot.2001.51.3.197

Cited by 352 publications

(167 citation statements)

References 106 publications

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“…Their geometrical and kinematical characteristics may, in turn, differ depending on the factors that drive and accompany the slope instability processes (Leroueil 2001;Cascini et al 2009), leading to different risk scenarios. Therefore, regardless of the scale of landslide risk analysis and zoning adopted, it is necessary to understand the landslide mechanisms that may occur in the study area.…”

Section: Risk Scenariosmentioning

confidence: 99%

Recommendations for the quantitative analysis of landslide risk

Corominas

Westen

Frattini

et al. 2013

Bull Eng Geol Environ

709

666

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This paper presents recommended methodologies for the quantitative analysis of landslide hazard, vulnerability and risk at different spatial scales (site-specific, local, regional and national), as well as for the verification and validation of the results. The methodologies described focus on the evaluation of the probabilities of occurrence of different landslide types with certain characteristics. Methods used to determine the spatial distribution of landslide intensity, the characterisation of the elements at risk, the assessment of the potential degree of damage and the quantification of the vulnerability of the elements at risk, and those used to perform the quantitative risk analysis are also described. The paper is intended for use by scientists and practising engineers, geologists and other landslide experts.

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Section: Risk Scenariosmentioning

confidence: 99%

Recommendations for the quantitative analysis of landslide risk

Corominas

Westen

Frattini

et al. 2013

Bull Eng Geol Environ

709

666

View full text Add to dashboard Cite

show abstract

“…d A view of a sensor located on the waveguide inside a cover progressive failure occurs and post peak strengths are mobilised (e.g. Leroueil 2001;Cooper et al 1998).…”

Section: Css Performance Evaluation Using Physical Model Experimentsmentioning

confidence: 99%

An acoustic emission landslide early warning system for communities in low-income and middle-income countries

et al. 2018

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Early warning systems for slope instability are needed to alert users of accelerating slope deformation behaviour, enable evacuation of vulnerable people, and conduct timely repair and maintenance of critical infrastructure. Communities exposed to landslide risk in low-and middle-income countries seldom currently instrument and monitor slopes to provide a warning of instability because existing techniques are complex and prohibitively expensive. Research and field trials have demonstrated conclusively that acoustic emission (AE) monitoring can be an effective approach to detect accelerating slope movements and to subsequently communicate warnings to users. The objective of this study was to develop and assess a simple, robust, low-cost AE monitoring system to warn of incipient landslides, which can be widely deployed and operated by communities globally to help protect vulnerable people. This paper describes a novel AE measurement sensor that has been designed and developed with the cost constrained to a few hundred dollars (US). Results are presented from physical model experiments that demonstrate performance of the AE system in measuring accelerating deformation behaviour, with quantifiable relationships between AE and displacement rates. Exceedance of a pre-determined trigger level of AE can be used to communicate an alarm to users in order to alert them of a slope failure. Use of this EWS approach by communities worldwide would reduce the number of fatalities caused by landslides.

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“…A gradual reduction in AE rate occurs as slope movement and therefore waveguide backfill deformation ceases. Leroueil (2001) presented a conceptual velocity-time profile for the 'reactivation stage' of slope movements that possessed the shape of a normal distribution, and hence velocity is expected to increase exponentially with time during reactivated slope movements until a peak velocity is reached and the velocity subsequently decays exponentially until movement ceases. AE rate (RDC/hour)-time relationships for deformation events at Hollin Hill are analogous to such behaviour; however the AE measurements demonstrate that the velocity profiles for reactivated slope movements at the Hollin Hill site are predominantly log normal in shape.…”

Section: Deformation Event Ae Signaturementioning

confidence: 99%