Risk Assessment in Geotechnical Engineering Practice

Sartain, Nick; Mian, Juliet; Peluso, Dan

doi:10.1061/9780784480731.024

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…The development of linear infrastructure such as roads, railways and bridges are highly susceptible to sinkhole subsidence damage (Guerrero et al, 2008;Cooper, 2020). Despite an increasing interest in the threat posed by sinkholes (e.g., Sartain et al, 2011;Land et al, 2018;Land, 2019), there is no robust method available to date for predicting and locating sinkholes prior to ground surface collapse. Monitoring systems that provide a continuous record of potential indicators of the sinkhole formation, e.g., surface deformations, are recommended (Gutierrez et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Distributed fibre optic sensing for sinkhole early warning: experimental study

Moller

Burke

et al. 2023

Géotechnique

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This paper presents experimental work aimed at proving the feasibility of using Distributed Fibre Optic Sensing (DFOS) as an early warning system for sinkhole detection. 1g experiments were conducted using a plane strain trapdoor and scaled to provide insight into the formation of a sinkhole in sand, in which DFOS cables are laid at selected depths. The DFOS data are compared with the geomechanics of the soil displacement, recorded using Particle Image Velocimetry (PIV). It was demonstrated that the DFOS exhibits a signature strain profile at the location of the sinkhole, allowing a sinkhole to be located using the DFOS data. Differences in the PIV and DFOS data are however apparent, notably the strain magnitudes. Nonetheless, it is possible to estimate the size and location of the sinkhole at depth using the DFOS data. Using a preliminary study of the development of the zone of subsidence, for a range of relative densities, it is then possible to predict the extent of the damage zone at ground surface. Such results show the potential for the incorporation of DFOS in the construction of critical infrastructure to enable early detection of sinkhole formation and thus opportunity for remedial action to prevent catastrophic failures.

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Section: Introductionmentioning

confidence: 99%

Distributed fibre optic sensing for sinkhole early warning: experimental study

Moller

Burke

et al. 2023

Géotechnique

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“…[118] [119] [120]. Occurrence probabilities of risk events, assessment of consequences, and planning of control strategies require to acknowledge the risk at the very end and provide remedial measures to avoid the risk or recovery methods in the event based on informed decisions[121] [122].…”

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confidence: 99%

Deep Foundation Pit Excavations Adjacent to Disconnected Piled Rafts: A Review on Risk Control Practice

Uge¹,

Guo²

2020

OJCE

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Foundation pit excavation engineering is an old subject full of decision making. Yet, it still deserves further research due to the associated high failure cost and the complexity of the geological conditions and/or the surrounding existing infrastructure around it. This article overviews the risk control practice of foundation pit excavation projects in close proximity to existing disconnected piled raft. More focus is given to geotechnical aspects. The review begins with achievements to ensure excavation performance requirements, and follows to discuss the complex soil structure interaction involved among the fundamental components: the retaining wall, mat, piles, cushion, and the soil. After bringing consensus points to practicing engineers and decision makers, it then suggests possible future research directions.

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Risk Assessment in Geotechnical Engineering Practice

Cited by 2 publications

References 2 publications

Distributed fibre optic sensing for sinkhole early warning: experimental study

Distributed fibre optic sensing for sinkhole early warning: experimental study

Deep Foundation Pit Excavations Adjacent to Disconnected Piled Rafts: A Review on Risk Control Practice

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