The behaviour of a reinforced soil mattress spanning a cavity modelled in a geotechnical centrifuge

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dc.contributor.author Van Dyk, C.
dc.contributor.author Jacobsz, S.W. (Schalk Willem)
dc.date.accessioned 2016-07-21T08:00:48Z
dc.date.issued 2016-10
dc.description.abstract Sinkholes can occur on land underlain by dolomite and cause substantial damage to buildings and even loss of life. More than four million people work or reside on dolomite land in South Africa and it is therefore important to be able to construct safely on dolomite land and to minimise the risk of damage to infrastructure and loss of life. Compacted soil mattresses are often used to found structures on areas underlain by dolomite. This study investigated the effect of tensile reinforcement on the behaviour of a soil mattress spanning an underlying water filled cavity designed to impose a cover subsidence sinkhole. Three small-scale models, each consisting of a soil mattress with a cover subsidence sinkhole forming underneath, were constructed and tested in a geotechnical centrifuge. In the first test, an unreinforced soil mattress was tested and in two more tests, reinforced soil mattresses with different reinforcement strengths were tested. The settlement of the unreinforced soil mattress was initially less than that of the reinforced soil mattresses up to the point at which it failed suddenly. Neither of the reinforced soil mattresses failed suddenly, but both experienced large surface settlements that would have led to substantial damage to an overhead structure. en_ZA
dc.description.department Civil Engineering en_ZA
dc.description.embargo 2017-10-30
dc.description.librarian hb2016 en_ZA
dc.description.uri http://link.springer.com/journal/10706 en_ZA
dc.identifier.citation Van Dyk, C. & Jacobsz, S.W. The behaviour of a reinforced soil mattress spanning a cavity modelled in a geotechnical centrifuge. Geotechnical and Geological Engineering (2016) 34: 1345-1358. doi:10.1007/s10706-016-0046-2. en_ZA
dc.identifier.issn 0960-3182 (print)
dc.identifier.issn 1573-1529 (online)
dc.identifier.other 10.1007/s10706-016-0046-2
dc.identifier.uri http://hdl.handle.net/2263/56016
dc.language.iso en en_ZA
dc.publisher Springer en_ZA
dc.rights © Springer International Publishing Switzerland 2016. The original publication is available at : http://link.springer.comjournal/10706. en_ZA
dc.subject Cavity en_ZA
dc.subject Centrifuge en_ZA
dc.subject Geosynthetic reinforcement en_ZA
dc.subject Sinkhole en_ZA
dc.subject Soil mattress en_ZA
dc.title The behaviour of a reinforced soil mattress spanning a cavity modelled in a geotechnical centrifuge en_ZA
dc.type Postprint Article en_ZA


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