Investigation of Group Pile Behavior under Lateral Loads in Clayey Soils<br/>

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Investigation of Group Pile Behavior under Lateral Loads in Clayey Soils

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 41096 (09)
University: Sharif University of Technology
Department: Civil Engineering
Advisor(s): Pak, Ali
Abstract:
Piles are usually used in groups. The complicated interaction between piles on the one hand and between piles and their surrounding soil on the other hand, have made it difficult to recognize mechanisms that influence the pile group behavior and analyze it accurately. In this research, three dimensional models in ABAQUS software were used to investigate response of single piles and pile groups under lateral loading in clayey soils. Configuration of piles in a group, connection of piles to the pile cap, pile spacings, and pile cross section were taken into consideration as some important factors affecting response of pile groups. All the modeled piles were categorized as long piles. In order for simplicity, design of long piles in a group under lateral loads has been based on the response of the single pile; factor of efficiency (Ge) has been used to relate response of the group to that of a single pile, while P-Multiplier has been used to compare response of each pile in a group with that of the single pile. Both the aforementioned factors are computed and compared for pile groups in this study
Keywords:
Pile Group ; Clay Soils ; Load Derating Coefficent ; Lateral Load Pattern ; Efficiency ; Soil-Pile Interaction

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