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

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...

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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 cushio...

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