Ground penetrating radar-based asphalt composite gravel seal coat thickness detection method
A technology of crushed stone seal and ground penetrating radar, which is applied in road repair, complex mathematical operations, roads, etc., can solve problems such as the difficulty in detecting the thickness of asphalt composite crushed stone seal, and achieve the possibility of reducing construction costs and eliminating diseases , Guarantee the effect of construction quality
Pending Publication Date: 2021-06-01
HEFEI UNIV OF TECH
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Problems solved by technology
[0008] The purpose of the present invention is to solve the problem of difficulty in detecting the thickness of the existing asphalt composite gravel seal layer, and provide a method for detecting the thickness of the asphalt composite gravel seal layer based on ground penetrating radar
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Embodiment 1
[0068] refer to figure 1 , according to the flow chart of the thickness detection method of the present invention, comprising the following steps:
[0069] Step 1. Make 5 indoor test pieces of asphalt composite crushed stone seal layer. The specific production process is as follows:
[0070] A 1 : Prepare five 500mmX500mmX50mm rut plate molds, 500mmX500mmX10mm rubber pads, wheel milling machine, oven, brush, asphalt holding dish, small steel wheel and electronic scale and other equipment;
[0071] A 2 : Use an electronic scale to weigh the required crushed stones with different particle sizes, put them in an oven, heat them at 180°C for 2 hours, then put the asphalt in the oven, and heat them together with the crushed stones at 180°C for 2 hours Hour;
[0072] A 3 : Apply diesel oil on all rut slab forms, and put in 500mmX500mm oil-absorbing paper, pour the required amount of asphalt on the rut slab form according to the designed asphalt spreading amount, and put it in an...
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The invention discloses a ground penetrating radar-based asphalt composite chip seal thickness detection method. The method comprises the following steps of 1, manufacturing 4-6 asphalt composite chip seal indoor test pieces; 2, measuring the thickness of the manufactured test piece by using a conventional thickness detection method; 3, measuring the thickness of the manufactured test piece by using a detection method based on the ground penetrating radar; 4, based on the step 2 and the step 3, performing normalization processing on the data, and obtaining a corresponding thickness correction coefficient through a formula; and 5, proposing a dielectric constant empirical regression formula based on the steps. The method reduces and even eliminates the pavement thickness error obtained only by a ground penetrating radar detection method, greatly improves the detection precision of a traditional ground penetrating radar detection method, achieves the purpose of nondestructive detection, avoids the problem of repair after core drilling, eliminates the possibility of diseases caused by core drilling, and guides the construction of an asphalt composite gravel seal. The construction quality is ensured, and the accuracy of the thickness correction coefficient is improved.
Description
technical field [0001] The invention relates to the technical field of road construction detection, in particular to a method for detecting the thickness of an asphalt composite gravel seal layer based on ground penetrating radar. Background technique [0002] In pavement engineering, pavement thickness is closely related to the overall strength of the road. When designing the pavement, whether it is a cement concrete pavement or an asphalt concrete pavement, the final decision is the thickness of each layer. Only when the thickness is guaranteed, the overall strength and road performance of the pavement can be guaranteed. In addition to ensuring strength, strict control of the thickness of each structural layer is also a very important aspect. Therefore, whether it is in the process of road construction or in the completion acceptance inspection, it is particularly important to detect the thickness of the road surface. [0003] Asphalt composite crushed stone seal is an e...
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IPC IPC(8): E01C23/01G06F17/15
CPCE01C23/01G06F17/15
Inventor 刘凯童健航王大为罗桑庄远笪艺徐晓倩张玄成黄沐阳许培欣
Owner HEFEI UNIV OF TECH