Inverted-ladder-shaped variable-section single-pile vertical bearing character analysis method

An analysis method and inverted ladder technology, applied in the direction of sheet pile walls, special data processing applications, instruments, etc., can solve the problem of few theoretical research results of variable cross-section piles

Inactive Publication Date: 2015-12-30
EAST CHINA JIAOTONG UNIVERSITY
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Problems solved by technology

Variable cross-section piles have achieved remarkable social and economic benefits in terms of reducing settlement, increasing pile foundation safety, and reducing foundation engineering costs. However, there are relatively few theoretical research results on variable cross-section piles.

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  • Inverted-ladder-shaped variable-section single-pile vertical bearing character analysis method
  • Inverted-ladder-shaped variable-section single-pile vertical bearing character analysis method
  • Inverted-ladder-shaped variable-section single-pile vertical bearing character analysis method

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Embodiment Construction

[0098] The present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the following is only an embodiment of the present invention, and it does not mean that the technical solution of the present invention is carried out in the following manner. Similar schemes of conclusions all belong to the technical protection scope of the present invention.

[0099] like figure 1 As shown in Fig. 1, it is assumed that the pile body and the soil around the pile are elastic, and the supporting force at the pile tip acts after the pile side friction resistance is fully exerted;

[0100] When the pile top load P 0 When the pile tip settlement Δh is small, the soil shear force around the upper pile body presents a trapezoidal distribution, as shown in figure 1 As shown in (a); the load increases gradually, and the soil around the pile top reaches the limit side friction resistance, as shown in figure 1 As shown in (b), at this ti...

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Abstract

The invention provides an inverted-ladder-shaped variable-section single-pile vertical bearing character analysis method. The analysis method is scientific and high in accuracy. The analysis method comprises the steps that according to different pile tip settling volumes obtained through gradual increasing of a pile body and soil around the pile body along with loads, the changes of the bearing force of different critical positions of the pile body on soil and the side friction force of the pile body are calculated, and the critical states of internal force and deformation of a pile body-soil system in different loading states are obtained. Then, the end bearing force and side friction force of the pile body in different loading states are calculated.

Description

technical field [0001] The invention relates to the technical field of civil engineering, and more particularly relates to a method for analyzing the vertical bearing behavior of a single pile with an inverted stepped deformed section. technical background [0002] With the increasing application of pile foundations in practical engineering, the deformation, bearing capacity and project cost of pile foundations have gradually become very concerned issues in the field of construction. In this context, many scholars and engineers have continuously explored and innovated on the research and application of pile foundations, and many new pile types have emerged, and the variable cross-section pile is one of them. Variable cross-section piles have achieved remarkable social and economic benefits in terms of reducing settlement, increasing pile foundation safety, and reducing foundation engineering costs. However, there are relatively few theoretical research results on variable cr...

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Application Information

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IPC IPC(8): E02D5/48E02D33/00G06F19/00
Inventor耿大新方焘梁韵
OwnerEAST CHINA JIAOTONG UNIVERSITY