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Method for quickly detecting thickness of road engineering concrete cushion by using ground penetrating radar

A concrete cushion and road engineering technology, which is applied in the direction of measuring device, radio wave measurement system, radio wave reflection/re-radiation, etc., can solve the problems of failure to meet design standards, uneven distribution of road engineering quality, and unintuitive system reflect the quality of road engineering and other issues

Inactive Publication Date: 2017-05-10
SHANDONG AGRICULTURAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0002] In the actual construction process, due to the influence of various objective factors such as terrain, the acceptance of road engineering generally takes the design quality requirements as the index, and coring measurements are carried out on different roads according to the situation to check whether the construction quality meets the design requirements. , the uneven thickness distribution of road engineering cushion does not meet the design standard
The traditional method checks the thickness of the road cushion by punching coring measurements, but in the actual acceptance process, the traditional method cannot intuitively and systematically reflect the real situation of road engineering quality, and can only judge the thickness of the cushion by the coring point, which is easy to cause Overall uneven distribution of road engineering quality

Method used

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  • Method for quickly detecting thickness of road engineering concrete cushion by using ground penetrating radar
  • Method for quickly detecting thickness of road engineering concrete cushion by using ground penetrating radar

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Embodiment

[0016] The design quality requirement for the thickness of the concrete cushion of road engineering in Zhuyang Town, Daiyue District, Tai'an City, is about 18cm. The cushion is cement concrete. The construction road with a sampling length of 19m is detected by radar. The image is as follows figure 1 As shown in , the radar detection is carried out on the construction road with a sampling length of 20m, and the image is as follows figure 2 shown. The specific method is:

[0017] ①Set radar parameters: radar frequency 250MHz; time window 36ns; electromagnetic wave velocity v 1 = 0.1m / ns;

[0018] ②Design the detection path: use the section method to detect the radar image of the road engineering in the project area, correct the electromagnetic wave velocity according to the on-site road coring situation, and obtain the electromagnetic wave velocity of the concrete under a specific ratio as v 3 ;

[0019] ③Get HD and DT 1 format file, in the EKKO-Project software, the surfa...

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Abstract

The invention discloses a method for quickly detecting the thickness of a road engineering concrete cushion by using a ground penetrating radar. The method comprises the steps of setting radar parameters: radar frequency 250MHz, time window 36ns and electromagnetic wave velocity v1=0.1m / ns; designing a detection path: detecting an engineering radar image of a project area road by adopting a cross-section method, and correcting the electromagnetic wave velocity according to the field road coring condition to obtain the electromagnetic wave velocity v2 or v3 of concrete in a specific proportion; obtaining files in the formats of HD and DT1, distinguishing the surface and the cushion of the project area road in EKKO-Project software by gain and debuff processing, and obtaining the flatness h of the road and the thickness h1 of the concrete cushion at the electromagnetic wave velocity v2 or v3; and comparing the flatness h of the road and the thickness h1 of the concrete cushion with road engineering acceptance standards to obtain a result about whether the road engineering quality reaches the standard. The thickness of the concrete cushion can be quickly obtained by adopting the method.

Description

technical field [0001] The invention belongs to the technical field of road engineering, and in particular relates to a method for quickly detecting the thickness of a road engineering concrete cushion by a ground penetrating radar. Background technique [0002] In the actual construction process, due to the influence of various objective factors such as terrain, the acceptance of road engineering generally takes the design quality requirements as the index, and coring measurements are carried out on different roads according to the situation to check whether the construction quality meets the design requirements. , the uneven thickness distribution of road engineering cushion does not meet the design standard. The traditional method checks the thickness of the road cushion by punching coring measurements, but in the actual acceptance process, the traditional method cannot intuitively and systematically reflect the real situation of road engineering quality, and can only jud...

Claims

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Application Information

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IPC IPC(8): G01S13/88
CPCG01S13/885
Inventor 闵祥宇李新举宋文文李芳孙问娟李奇超赵学伟
Owner SHANDONG AGRICULTURAL UNIVERSITY
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