Research on optimum design method of cushion thickness in composite foundation under rigid base

• Autorzy: Xiao Yaoting , Wang Jing

Identyfikatory

DOI

10.24425/ace.2023.145279

• Języki publikacji: EN

Abstrakty

EN

At present, the cushion thickness of composite foundation under rigid base is mostly selected by the experience of the engineer, which is of great arbitrariness. In order to improve this problem, the optimum design method of cushion thickness is proposed by theoretical research. First, the stress diffusion line in the cushion is assumed to be a quadratic curve, and the critical diffusion thickness of the pile top stress is obtained. Then, by analyzing the relative deformation between soil and pile, pile top penetration into the critical cushion thickness is proposed. Finally, based on the relationship between stress ratio of pile to soil and cushion thickness, the calculation method of optimum cushion thickness is put forward. The application of engineering cases shows that the proposed method has better calculation results, which attests to the correctness of the method. The method can be used for the optimal design of cushion thickness of single-type-pile or multi-type-pile composite foundation.

Słowa kluczowe

EN

composite foundation; cushion thickness; optimum design; stress diffusion

PL

fundament kompozytowy; grubość; konstrukcja optymalna; rozkład naprężeń

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2023
• Tom: Vol. 69, nr 2
• Strony: 471--482
• Opis fizyczny: Bibliogr. 26 poz., il.

Twórcy

autor

Xiao Yaoting

• Hubei University of Arts and Science, College of Civil Engineering and Architecture, Hubei, China

• https://orcid.org/0000-0002-9537-8692

autor

Wang Jing

• Hubei University of Arts and Science, College of Civil Engineering and Architecture, Hubei, China

• https://orcid.org/0000-0001-7655-8850

Bibliografia

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