Synthetic nondestructive detecting method for hidden dangers of levee

A non-destructive testing and embankment technology, applied in electromagnetic wave detection, etc., can solve problems such as inability to fully grasp hidden dangers of embankments, single function, and incomplete detection results

Inactive Publication Date: 2008-10-29
SHANGHAI UNIV
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Problems solved by technology

[0010] The purpose of the present invention is to provide a comprehensive non-destructive detection method for hidden dangers of levees, which has complete functions, comprehensive detection and comprehensive Grasp the soil density, humidity and mechanical parameters of each soil layer inside the embankment, the degree of hidden danger, the safety status of the embankment, etc.

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  • Synthetic nondestructive detecting method for hidden dangers of levee
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  • Synthetic nondestructive detecting method for hidden dangers of levee

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Embodiment Construction

[0058] A specific embodiment of the present invention is: the geological radar detection image of this example such as figure 1 As shown, at 4.5 meters underground along the longitudinal measuring line of the embankment at 0-22 meters, a section of new filling was found not to be integrated with the old embankment section. The images obtained by the high-density resistivity method are as follows: figure 2 As shown, the equivalent value of apparent resistivity is high, high, low, and high, with clear layers and basically distributed in horizontal layers. Also along the longitudinal measuring line of the embankment, there is a low-resistance closed circle between 4.5 meters and 7 meters underground at a depth of 0 to 22 meters, which is inferred to be caused by new filling. According to the seismic reflection signal analysis and result map ( image 3 ), the layering of the embankment body is more clearly achieved, and the thickness and soil mechanics of each layer in the emba...

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Abstract

The invention relates to a levee hidden trouble integrated non-destructive testing method. Geological radar is adopted to carry out general survey to the levee to find out whether an abnormal levee section exists according to the characteristics of high resolution, high detecting speed, no damage to an object to be tested and high anti-interference capability of the geological radar. At the abnormal levee section, detailed survey is carried out by integrating the characteristics of rich exploration information, convenient interpretation and strong exploring capability of a high intensity resistivity method and the characteristic of a seismic method that the sandy clay physical mechanics characteristics which are relevant to the shearing strength and the compressive strength of the levee sandy clay such as levee crack, collapse and sinkage, etc. can be reflected, and the property and scope of the abnormal section of the levee are determined. The method of the invention overcomes the limitation exists in a single physical geography non-destructive detecting method when levee detecting is carried out, thus roundly and accurately grasping the abnormal information of the levee and realizing the integrated detecting of the levee hidden troubles.

Description

technical field [0001] The invention relates to a comprehensive nondestructive detection method for levee hidden dangers, which is used for levee detection and safety status analysis. It belongs to the technical field of intelligent information processing. Background technique [0002] Embankments are an important part of the flood control engineering system and the main barrier against floods and storm surges. They play a huge role in ensuring the safety of people's lives and properties. However, the hydrogeological conditions of the dike foundation are complex, the quality of the dike is uneven, and the operating conditions of the dike are complicated and difficult to control. In addition, there are many hidden dangers in dikes such as dike cracks, holes, loose soil, weak interlayers, straw layers, and rat holes caused by various factors such as natural or man-made. Therefore, piping, Dangerous situations such as landslides may lead to levee failure in severe cases. The...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/12
Inventor 管业鹏严军
Owner SHANGHAI UNIV
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