dc.contributor.authorGoh, Anthony Teck Chee
dc.date.accessioned2017-12-13T06:58:27Z
dc.date.available2017-12-13T06:58:27Z
dc.date.issued2017
dc.identifier.citationGoh, A. T. C. (2017). Deterministic and reliability assessment of basal heave stability for braced excavations with jet grout base slab. Engineering Geology, 218, 63-69.en_US
dc.identifier.issn0013-7952en_US
dc.identifier.urihttp://hdl.handle.net/10220/44139
dc.description.abstractFor braced excavations in deep deposits of soft clays, it is common to construct a jet grout slab (JGP) beneath the excavation in order to restrain the wall deformation, reduce the forces acting on the struts and to increase the basal heave factor of safety. In this paper, finite element analyses were carried out to assess the basal heave factor of safety for excavations in soft clays supported by JGP. The finite element analyses indicate that the interface friction between the jet grout slab and the wall is a key component contributing to the resistance of the excavation system to basal heave failure. Comparison of the factor of safety from the finite element analyses with limit equilibrium predictions based on the slip circle method and the modified Terzaghi method was then performed. Since the conventional factor of safety approach does not explicitly reflect the uncertainties of the soil and JGP properties, and the excavation geometry on the excavation system performance, a series of reliability analyses were also carried out to assess the basal heave factor of safety for excavations supported by JGP. The provided spreadsheet template can be used to estimate the probability of basal heave failure for deep excavations supported by jet grout slabs.en_US
dc.format.extent32 p.en_US
dc.language.isoenen_US
dc.relation.ispartofseriesEngineering Geologyen_US
dc.rights© 2017 Elsevier B.V. This is the author created version of a work that has been peer reviewed and accepted for publication by Engineering Geology, Elsevier B.V. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.enggeo.2016.12.017].en_US
dc.subjectBasal Heaveen_US
dc.subjectBraced Excavationen_US
dc.titleDeterministic and reliability assessment of basal heave stability for braced excavations with jet grout base slaben_US
dc.typeJournal Article
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.identifier.doihttp://dx.doi.org/10.1016/j.enggeo.2016.12.017
dc.description.versionAccepted versionen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record