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A method for studying longitudinal vibration of pile foundation in saturated layered soil based on virtual soil pile model

A technology of longitudinal vibration and virtual soil, which is applied in the directions of instrumentation, calculation, design optimization/simulation, etc., can solve the problems that the longitudinal vibration of floating pile foundation is not applicable, and the saturated two-phase medium property of pile bottom soil is not considered.

Active Publication Date: 2019-02-15
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

However, the single-phase virtual soil pile model assumes that the soil at the bottom of the pile is a single-phase medium, and does not consider the saturated two-phase medium of the soil at the bottom of the pile, which is not applicable to the longitudinal vibration of the floating pile foundation in saturated soil.

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  • A method for studying longitudinal vibration of pile foundation in saturated layered soil based on virtual soil pile model
  • A method for studying longitudinal vibration of pile foundation in saturated layered soil based on virtual soil pile model
  • A method for studying longitudinal vibration of pile foundation in saturated layered soil based on virtual soil pile model

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[0145] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0146] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention provides a method for studying longitudinal vibration of a pile foundation in saturated layered soil based on a virtual soil pile model. A longitudinal vibration dynamic impedance arithmetic system of float bearing pile base on saturated virtual soil pile model The saturated virtual soil pile model can take into account the saturated characteristics of pile circumference and pile bottom soil, and can reasonably consider the influence of pile bottom soil thickness on pile foundation longitudinal vibration characteristics, which is suitable for the study of floating pile longitudinal vibration characteristics in saturated soil, and can provide theoretical guidance and reference for pile foundation dynamic testing.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a research method for longitudinal vibration of pile foundation in saturated layered soil based on virtual soil pile model. Background technique [0002] At present, in view of the problem of floating piles, most of the existing studies have simplified the soil at the bottom of the pile to the Winkler model, and the spring and damper coefficients are usually selected according to experience, which cannot reasonably consider the influence of the fluctuation effect of the soil at the bottom of the pile. In order to solve such problems, some scholars considered the pile bottom soil as a single-phase or saturated elastic half-space medium, calculated the pile bottom complex impedance function expression, and analyzed the longitudinal vibration characteristics of floating piles. However, although the elastic half-space model can consider the fluctuation effect of the pile su...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F2119/06G06F30/20
Inventor 崔春义孟坤许成顺梁志孟刘海龙
Owner DALIAN MARITIME UNIVERSITY
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