Show simple item record

dc.contributor.authorOng, Dominic E.L.
dc.contributor.editorK. Ilamparuthi and R. G. Robinson
dc.date.accessioned2019-05-29T13:02:48Z
dc.date.available2019-05-29T13:02:48Z
dc.date.issued2019
dc.identifier.isbn9789811305047
dc.identifier.doi10.1007/978-981-13-0505-4_13
dc.identifier.urihttp://hdl.handle.net/10072/380839
dc.description.abstractTwo case studies involving deep excavation in peaty soils are presented in this invited paper. The water and organic contents of peaty soils can be high as 1,200 and 60%, respectively. The design of deep excavation involving peaty soil layer can be very challenging as it is known that peaty soil can exhibit greater permeability in the horizontal direction than the vertical direction, hence the term anisotropy in permeability. If somehow ground water drawdown is triggered during deep excavation, the impact on nearby infrastructure can be detrimental as the kh:kv value can range between 2 and 10 with an average value of 5, as back-analysed in Case Study 1. Subsequently, by employing recharging wells as a form of ground remedial work, the excavation of a deep shaft was successfully carried out. In Case Study 2, ground improvement method via wet Deep Soil Mixing (DSM) technique was successfully employed to improve an underlying peaty soil layer with the hope that it could achieve slope stability and to provide an impermeable cut-off prior to carrying out the deep excavation work.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherSpringer Nature Singapore
dc.publisher.placeSingapore
dc.relation.ispartofbooktitleGeotechnical Design and Practice: Selected Topics
dc.relation.ispartofchapter13
dc.relation.ispartofchapternumbers22
dc.relation.ispartofpagefrom149
dc.relation.ispartofpageto158
dc.subject.fieldofresearchSedimentology
dc.subject.fieldofresearchConstruction Engineering
dc.subject.fieldofresearchEngineering Design Methods
dc.subject.fieldofresearchcode040310
dc.subject.fieldofresearchcode090502
dc.subject.fieldofresearchcode120403
dc.titleImpact of Anisotropy in Permeability of Peaty Soil on Deep Excavation
dc.typeBook chapter
dc.type.descriptionB1 - Chapters
dc.type.codeB - Book Chapters
gro.hasfulltextNo Full Text
gro.griffith.authorOng, Dominic E.L.


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

  • Book chapters
    Contains book chapters authored by Griffith authors.

Show simple item record