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High-pile wharf foundation pile damage recognition method based on strain testing

A high-piled wharf, strain testing technology, applied in measuring devices, instruments, material analysis by electromagnetic means, etc., can solve the problems of structural instability, casualties and property losses, easy damage or damage, etc., and achieve easy operation. , The effect of strain testing technology and data post-processing technology is simple and mature, and the test results are accurate and reliable

Active Publication Date: 2019-05-24
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As one of the main structural forms of port engineering buildings, the high-piled wharf has the characteristics of high bearing capacity, less material consumption, strong adaptability to ultra-deep dredging, and is suitable for soft soil foundations. However, due to its many components and complex structure , prone to damage or damage
At present, quite a few high-pile wharves in my country are close to their service life. The natural aging and corrosion of the wharf structure with the increase of service time, as well as the fatigue of the structure under the overload of the structure for a long time, have caused different effects on the structure. degree of damage
The accumulation of these damages may lead to structural instability and strength damage, which will cause catastrophic casualties and property losses
In reality, due to structural damage not being discovered in time, there are too many incidents of safety accidents caused by damage accumulation

Method used

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  • High-pile wharf foundation pile damage recognition method based on strain testing
  • High-pile wharf foundation pile damage recognition method based on strain testing
  • High-pile wharf foundation pile damage recognition method based on strain testing

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0027] In this embodiment, the test is carried out with the high-piled wharf model, as figure 1 Shown is the original figure of the model, figure 2 for correspondence figure 1 pile number, this experiment is designed to apply the method of the present invention for wharf damage identification in the two cases of working condition 1 and working condition 2.

[0028] Working condition 1: When the upper part of the No. 2 pile in the front row is damaged by 20%, the left side is stressed;

[0029] Working condition 2: When the upper part of the No. 2 pile in the front row is damaged by 50%, the left side is stressed.

[0030] The specific test method is as follows:

[0031] Step 1: Arrange str...

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Abstract

The invention discloses a high-pile wharf foundation pile damage recognition method based on strain testing. The method includes following steps: step 1, arranging a strain gage, and connecting a strain collector; step 2, applying a horizontal load, and collecting a strain value; step 3, analyzing a strain linear relation of each foundation pile; step 4, comparing the linear relations; step 5, judging damaged foundation piles; step 6, determining damaged positions of the foundation piles. The method has the advantages of being convenience in operation, reliable in result, low in cost and highin efficiency.

Description

technical field [0001] The invention relates to a method for identifying damage of foundation piles of high-pile wharf based on strain testing, and belongs to the technical field of damage identification of foundation piles of high-pile wharf. Background technique [0002] As one of the main structural forms of port engineering buildings, the high-piled wharf has the characteristics of high bearing capacity, less material consumption, strong adaptability to ultra-deep dredging, and is suitable for soft soil foundations. However, due to its many components and complex structure , prone to damage or destruction. At present, quite a few high-pile wharves in my country are close to their service life. The natural aging and corrosion of the wharf structure with the increase of the use time, as well as the fatigue of the structure under the action of overload for a long time, have caused different effects on the structure. degree of damage. The accumulation of these damages may l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/00G01N27/00G01N33/00
Inventor 朱瑞虎苏静波郝敬钦罗梦岩曾海坤车宇飞王军磊郭健
Owner HOHAI UNIV