Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/45911
DC FieldValueLanguage
dc.contributor.authorLin, D.G.en_US
dc.contributor.author馮正一zh_TW
dc.contributor.authorFeng, Z.Y.en_US
dc.date2006zh_TW
dc.date.accessioned2014-06-06T08:15:48Z-
dc.date.available2014-06-06T08:15:48Z-
dc.identifier.issn0253-3839zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/45911-
dc.description.abstractThis paper presents raft-pile-soil interaction for a vertically loaded flexible piled raft on layered subsoil using a two-dimensional finite difference numerical tool. The subsoil is modeled as a linear elastic material and the raft is modeled as a beam structure under plane strain. In addition, the piles are simulated by a series of pile elements considering the pile/soil interface behavior. In the simulations, the required input parameters of soil, pile and interface are determined by back analyses of pile loading tests. Settlement, bending moment, both in pile and raft, as well as effects of raft flexibility for vertical uniform loading in the subsoil were examined. It is found that even though for vertical uniform loading, a relatively high bending moment may be induced in the piles due to lateral displacement of the stressed subsoil. For the case of a piled raft placed over a soft clay layer at ground surface the contact pressure at the raft-soil interface is merely 4 similar to 6% of that developed in the unpiled raft. Nevertheless, the contact pressure may reach 15 similar to 25% of that of the unpiled raft if the piled raft is resting on a sand layer at the ground surface. This implies that the loading carried by the pile group could be reduced by almost 1/4 of the design load and it could eventually reduce the cost of pile group construction to a certain extent.en_US
dc.language.isoen_USzh_TW
dc.relationJournal of the Chinese Institute of Engineersen_US
dc.relation.ispartofseriesJournal of the Chinese Institute of Engineers, Volume 29, Issue 6, Page(s) 1091-1097.en_US
dc.relation.urihttp://dx.doi.org/10.1080/02533839.2006.9671208en_US
dc.subjectpileen_US
dc.subjectraften_US
dc.subjectnumerical analysis (CI5)en_US
dc.titleA numerical study of piled raft foundationsen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1080/02533839.2006.9671208zh_TW
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