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  1. 防災科研関係論文

Full-scale tests on effects of slope on lateral capacity of piles installed in cohesive soils

https://nied-repo.bosai.go.jp/records/4641
https://nied-repo.bosai.go.jp/records/4641
d2f91184-bea7-4b5b-a36f-8c82bd327c04
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 en
タイトル Full-scale tests on effects of slope on lateral capacity of piles installed in cohesive soils
言語
言語 eng
著者 Nontapat Nimityongskul

× Nontapat Nimityongskul

en Nontapat Nimityongskul

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Yohsuke Kawamata

× Yohsuke Kawamata

en Yohsuke Kawamata

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Deepak Rayamajhi

× Deepak Rayamajhi

en Deepak Rayamajhi

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Scott A. Ashford

× Scott A. Ashford

en Scott A. Ashford

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抄録
内容記述タイプ Other
内容記述 A series of full-scale lateral load tests of fully instrumented piles in cohesive soils were carried out to assess the lateral response of piles in free-field and near a slope condition. The test piles were loaded laterally using a hydraulic actuator to observe load-displacement relationship at loading elevation, axial strain response, and rotation response. It was found that the proximity of slope significantly affects the maximum lateral load capacity of the piles, but not significantly when the piles are installed at 8D (where D is pile diameter) or greater from the slope crests. In addition, it was observed all the piles except the 0D pile resulted in similar initial stiffness for the load-displacement curves, and the piles closer to the slope showed less passive resistance at smaller displacement. Using the test records, p-y curves for each test pile were back-calculated. By normalizing the p-y curves for the piles near the slope with the ones on the level ground at any soil displacement and depth, the p-multipliers accounting for the slope effects in lateral load analysis are derived. Based on the calculated p-multipliers, it was found that effects of adjacent slope to lateral behaviors of piles can be explained as a function of soil displacements; the p-multipliers are larger at small soil displacements and vice-versa.
言語 en
書誌情報 en : Journal of Geotechnical and Geoenvironmental Engineering

巻 144, 号 1, 発行日 2018-01-01
出版者
言語 en
出版者 ASCE-AMER SOC CIVIL ENGINEERS
ISSN
収録物識別子タイプ EISSN
収録物識別子 1943-5606
DOI
関連識別子 10.1061/(ASCE)GT.1943-5606.0001805
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