Single pile calculation method based on combination of finite element software and load transfer method

A load transfer and calculation method technology, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve the problems of low calculation efficiency and difficulty in considering interaction analysis models, and avoid modeling and calculation processes and operations Simple and computationally efficient results

Pending Publication Date: 2022-03-08
CHINA THREE GORGES CORPORATION +1
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the cumbersome process of establishing a pile-soil complex interaction analysis model with finite element software and the technical defects of low calculation efficiency and difficulty in considering the complex consolidation and creep characteristics of the soil in the single pile axial bearing c

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  • Single pile calculation method based on combination of finite element software and load transfer method
  • Single pile calculation method based on combination of finite element software and load transfer method
  • Single pile calculation method based on combination of finite element software and load transfer method

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Embodiment Construction

[0055] A single pile calculation method based on the combination of finite element software and load transfer method, which includes the following steps: establishing a soil geometric model according to the geological survey report, and calculating the stress change process of each soil layer under the surface heap load by general finite element software, Extract the corresponding soil effective stress and settlement data at a certain moment from the finite element calculation result file to form an input file, call the input file in the single pile axial bearing capacity calculation program based on Python language, and finally transfer τ-Δ through the load The curve method calculates the axial bearing response of the pile foundation at a given moment.

[0056] Such as figure 1 As shown, it is a schematic flow chart of the calculation method of the present invention, and the specific calculation steps are as follows:

[0057] (1) According to the geological survey report of ...

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Abstract

A single pile calculation method based on combination of finite element software and a load transfer method comprises the following steps that 1, a soil body geometric model is established according to a geological exploration report, and the stress change process of each soil layer under the action of ground surface loading is calculated; 2, extracting soil effective stress and settlement data corresponding to a certain moment from a finite element calculation result; and 3, the axial bearing response of the pile foundation at the given moment is calculated through a load transfer curve method. The method aims at solving the problem that in the prior art, the influence of the short-term effect and the long-term effect of soil stress and settlement changes on the axial bearing capacity of a single pile under the heaped loading effect is difficult to calculate.

Description

technical field [0001] The invention belongs to the field of civil engineering and relates to a single pile calculation method based on the combination of finite element software and load transfer method. Background technique [0002] As the most widely used form of deep foundation, the pile foundation can transfer the load of the superstructure to the bearing layer with hard soil and high strength in the deep layer step by step, and realize the crossing of the deep soft clay layer with a small cross-section and low cost And the purpose of making the pile end support in the hard soil layer. [0003] Due to the increasing shortage of land resources, various construction projects and bridge projects are extended to coastal areas rich in soft soil. Soft soil has the characteristics of high moisture content, high compressibility and low permeability. Filling or other reasons caused local pile loading, groundwater level drop, collapsible loess, and large-area dumping of stones a...

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Application Information

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IPC IPC(8): G06F30/13G06F30/23G06F119/14
CPCG06F30/13G06F30/23G06F2119/14
Inventor 于光明陈美合王卫张泽超张博代加林祝文龙
Owner CHINA THREE GORGES CORPORATION
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