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Cracking early warning method and device for asphalt concrete anti-seepage panel

A technology of asphalt concrete, anti-seepage panels, applied in the direction of measuring devices, adopting mechanical devices, instruments, etc.

Inactive Publication Date: 2016-01-06
CHINA INST OF WATER RESOURCES & HYDROPOWER RES +1
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  • Description
  • Claims
  • Application Information

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  • Cracking early warning method and device for asphalt concrete anti-seepage panel

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[0024] The invention relates to a stress measurement method and a cracking warning method for an asphalt concrete anti-seepage panel in a water conservancy and hydropower project, in particular to measuring the stress of an anti-seepage panel at a temperature below -25°C in a low-temperature environment to determine whether it is cracked Forecast.

[0025] The tensile strength Rm is the maximum tensile stress that the anti-seepage panel can bear before breaking.

[0026] Such as figure 1 As shown, a cracking early warning method for asphalt concrete anti-seepage panels, comprising the following steps:

[0027] S1: Measure the strain of the anti-seepage panel at the project site;

[0028] S2: At the engineering site, apply a tensile force to a test panel that has the same material as the anti-seepage panel and is used to simulate the anti-seepage panel on the engineering site, and measure the strain that the tensile force produces on the test panel, so that the strain of the ...

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Abstract

The invention discloses a cracking pre-warning method and a cracking pre-warning device for a scene bituminous concrete seepage-proofing panel. The device comprises a strain sensor, a loading device, a testing plate and a digital processor, wherein the strain sensor is embedded into the bituminous concrete seepage-proofing panel of an engineering field and is used for collecting the strain data of the panel and transferring the data to the digital processor, and the digital processor sends a command to the loading device to enable the loading device to apply equal strain load to the testing plate; meanwhile, the strain sensor in the loading device is used for transferring a strain value of the applied load to the digital processor, compares the strain value with the intensity of the bituminous concrete seepage-proofing panel, and forecasts whether the seepage-proofing panel has a cracking risk according to a comparison result. The cracking pre-warning method and the cracking pre-warning device for the scene bituminous concrete seepage-proofing panel provided by the invention are capable of forecasting and pre-warning whether the bituminous concrete seepage-proofing panel cracks and effectively avoiding cracking of the bituminous concrete seepage-proofing panel.

Description

technical field [0001] The invention relates to the monitoring field of asphalt concrete panel engineering, in particular to a cracking early warning device and method for an asphalt concrete anti-seepage panel capable of sending out cracking warning signals. Background technique [0002] Asphalt concrete anti-seepage panels are being used more and more widely in the construction of water conservancy and hydropower engineering buildings, such as dams and channels, due to their excellent anti-seepage performance, adaptability to foundation deformation, and quick repair of defects. However, anti-seepage panels may crack due to external temperature changes in cold regions. After the panel cracks, it will restrict its normal use, which is directly related to the normal operation of the protected buildings and cause a series of serious later problems. Therefore, it is a very meaningful subject to predict whether there is a risk of cracking in the asphalt concrete anti-seepage pan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N19/00
Inventor 郝巨涛刘增宏夏世法汪正兴张福成黄昊李蓉徐耀吕小彬李敬玮赵波毋志钊鲍志强王秀军张家宏
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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