BEARING CAPACITY ESTIMATION OF STRIP FOOTING ON TWO-LAYERED c-ϕ SOILS BASED ON THE RIGID PLASTIC FINITE ELEMENT METHOD

Tamboura, Hamidou Hamadoum; Koichi, Isobe

International Journal of GEOMATE, 2024, 26(117), 87-99

Permalink : https://hdl.handle.net/2115/100115

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論文情報

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アクセス権
open access
URI
https://hdl.handle.net/2115/100115
タイトル
BEARING CAPACITY ESTIMATION OF STRIP FOOTING ON TWO-LAYERED c-ϕ SOILS BASED ON THE RIGID PLASTIC FINITE ELEMENT METHOD
著者
著者名
Tamboura, Hamidou Hamadoum
著者名
Koichi, Isobe
言語
英語
キーワード
Strip Footing
Bearing Capacity
Bearing Capacity Factors
c-ϕ soil
Layered Ground
FEM
発行日
2024-05-30
出版者
International Journal of Geomate
収録物名
International Journal of GEOMATE
巻(号)
26(117)
ページ
87-99
抄録
This study investigates the bearing capacity of a strip footing on two-layered c-ϕ soils by considering layer factors estimated using an in-house FEM code, namely, the rigid-plastic finite element method. The influences of the following ratios on the bearing capacity factors were investigated: the ratio of the tangent of the angle of friction of the bottom layer to that of the top layer; the ratio of the cohesion of the bottom layer to that of the top layer; the ratio of the unit weight of the bottom layer to that of the top layer; and the ratios of the embedment of the footing and the thickness of the top layer to the footing width. Based on the influences of those ratios, layer factors are determined. Several types of failure mechanics were found and the conditions of occurrence of each failure type are summarized in a chart. In addition, a new approach for estimating the bearing capacity of a strip footing on two-layered c-ϕ soils is proposed. A comparison with available methods in the literature has confirmed the reliability of the proposed method, showing the application limitation of the past research.
資源タイプ
学術雑誌論文
出版タイプ
Version of Record
PISSN
2186-2982
EISSN
2186-2990
関連情報 (isIdenticalTo)
出版社版DOI
https://doi.org/10.21660/2024.117.g13272