Anti-sliding safety prediction method for impact on shoreside retaining wall when bridge floor touch ground

A prediction method and technology for retaining walls, which are applied in measuring devices, strength characteristics, and testing material strength by applying a stable shear force, can solve problems such as theoretical calculation methods and retaining wall slippage that have not yet been seen, and achieve Simple structure, reliable results, strong flow effect

Active Publication Date: 2021-06-11
FUJIAN UNIV OF TECH
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Problems solved by technology

After the bridge deck touches the ground, it often produces a horizontal impact force on the surrounding bank retaining wall and a horizontal thrust on the back of the wall. If the impact force is too large, it is easy to cause the retaining wall to slip
[0003] So far, the stability of the bank retaining wall against slippage is mostly based on empirical judgments, and no relevant theoretical calculation methods have been seen.

Method used

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  • Anti-sliding safety prediction method for impact on shoreside retaining wall when bridge floor touch ground
  • Anti-sliding safety prediction method for impact on shoreside retaining wall when bridge floor touch ground
  • Anti-sliding safety prediction method for impact on shoreside retaining wall when bridge floor touch ground

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with embodiment.

[0043] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0044] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0045] This e...

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Abstract

The invention provides an anti-sliding safety prediction method for impact on shoreside retaining wall when a bridge floor touches the ground. The method comprises the following steps: determining a horizontal additional force generated in unit width of a wall back at the moment when the bridge floor touches the ground; determining soil pressure in unit width of the retaining wall; the anti-sliding safety coefficient SF of the retaining wall is determined; if the SF is greater than or equal to a set threshold value, judging that the retaining wall is in a stable state, otherwise, judging that the retaining wall slips and is damaged. The method has the advantages of being high in process, simple in structure and reliable in result.

Description

technical field [0001] The invention relates to the technical field of geological engineering, in particular to a method for predicting the safety of the anti-sliding impact of a bridge deck touching the ground against a bank retaining wall. Background technique [0002] When a bridge is demolished by blasting, usually the bridge pier is blasted, and the bridge deck collapses freely to the ground. The moment the bridge deck collapses to the ground, a large impact energy is generated on the ground. On the one hand, this energy compresses the soil directly under the bridge deck, and on the other hand, the energy propagates to the surroundings along the underground. After the bridge deck touches the ground, it often produces a horizontal impact force on the surrounding bank retaining wall and a horizontal thrust on the back of the wall. If the impact force is too large, it is easy to cause the retaining wall to slip. [0003] So far, the stability of the retaining wall on the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/307G01N3/24G01N30/04
CPCG01N3/307G01N3/24G01N3/04G01N2203/0025
Inventor 罗才松高颖陈华艳王枫轩付朝江詹金武郑居焕
Owner FUJIAN UNIV OF TECH
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