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dc.contributor.authorElshesheny, Ahmed
dc.contributor.authorMohamed, Mostafa H.A.
dc.contributor.authorSheehan, Therese
dc.date.accessioned2021-03-16T22:25:30Z
dc.date.accessioned2021-03-23T13:55:56Z
dc.date.available2021-03-16T22:25:30Z
dc.date.available2021-03-23T13:55:56Z
dc.date.issued2020-08
dc.identifier.citationElshesheny A, Mohamed MHA and Sheehan T (2020) Protection of buried rigid pipes using geogrid-reinforced soil systems subjected to cyclic loading. Soil Dynamics and Earthquake Engineering. 135: 106210.en_US
dc.identifier.urihttp://hdl.handle.net/10454/18408
dc.descriptionYesen_US
dc.description.abstractThe performance of buried rigid pipes underneath geogrid-reinforced soil while applying incrementally increased cyclic loading was assessed using a fully instrumented laboratory rig. The influence of varying two parameters of practical importance was investigated; the pipe burial depth and the number of geogrid-layers. Measurements were taken for pipe deformation, footing settlement, strain in pipe and reinforcing layers, and pressure/soil stress on the pipe crown during various stages of cyclic loading. The research outcomes demonstrated a rapid increase in the rate of deformation of the pipe and the footing, and the rate of generated strain in the pipe and the geogrid-layers during the first 300 cycles. While applying further cycles, those rates were significantly decreased. Increasing the pipe burial depth and number of geogrid-layers resulted in reductions in the footing and the pipe deformations, the pressure on pipe crown, and the pipe strains. Redistribution of stresses, due to the inclusion of reinforcing layers, formed a confined zone surrounding the pipe providing it with additional lateral support. The pipe invert experienced a rebound, which was found to be dependent on pressure around the pipe and the degree of densification of the bedding layer. Data for strains measured in the geogrid-layers showed that despite the applied loading value and the pipe burial depth, the tensile strain in the lower geogrid-layer was usually higher than that measured in the upper layer.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttps://doi.org/10.1016/j.soildyn.2020.106210en_US
dc.subjectBuried rigid pipeen_US
dc.subjectGeosyntheticsen_US
dc.subjectIncrementally cyclic loadingen_US
dc.subjectPassive archingen_US
dc.subjectPipe invert rebounden_US
dc.subjectSlack effecten_US
dc.titleProtection of buried rigid pipes using geogrid-reinforced soil systems subjected to cyclic loadingen_US
dc.status.refereedYesen_US
dc.date.Accepted2020-05-01
dc.date.application2020-06-05
dc.typeArticleen_US
dc.type.versionAccepted manuscripten_US
dc.date.updated2021-03-16T22:25:33Z
refterms.dateFOA2021-03-23T13:56:22Z
dc.openaccess.statusGreenen_US


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