Mechanical Behavior of Pile Foundation Constructed in Composite Ground and its Evaluation

Tomisawa, Koichi; Miura, Seiichi

doi:10.3208/sandf.47.961

Cited by 16 publications

(1 citation statement)

References 9 publications

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“…E-mail: ko-tomsw@ceri.go.jp. ground strength increased by improvement mainly on the horizontal resistance of piles was proposed and put into practical use [3,4]. This construction method uses a combination of pile foundations with commonly used ground improvement methods, such as deep mixing, preloading and sand compaction pile.…”

Section: Introduction mentioning

confidence: 99%

Verification of Seismic Performance of Pile Foundation in Composite Ground through Experimental and Numerical Methods

Tomisawa¹,

Miura²

2013

JCEA

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A new construction method of pile foundation in composite ground, in which, prior to installing piles, the ground is improved around the heads of the piles in soft ground or ground subject to liquefaction, which is introduced in this paper. This construction method uses a combination of pile foundation construction together with common ground improvement methods, including deep mixing, preloading and sand compaction piling, and it is referred to as the composite ground pile method. Since an artificial ground with relatively high rigidity comparing with that of the original ground was formed around the pile in this method, and the seismic performance has not been made clear, thus the seismic performance of piles in composite ground was systematically analyzed through a series of centrifuge model tests and numerical analyses by using dynamic nonlinear finite element method, and a verification method for the seismic performance of piles in composite ground was proposed on the basis of the experimental and numerical results.

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Section: Introduction mentioning

confidence: 99%