An Improved Pavement Structure Depth Detection Device

Abstract

The invention discloses an improved road surface structure depth detection device, which comprises a bottom ring, a passage groove is arranged in the middle of the bottom ring, a windshield barrel is fixed on the upper side of the bottom ring, and a windshield bucket is fixed on the lower side of the bottom ring. There is a first anti-slip pad, and the middle of the windshield barrel is provided with an activity chamber with an opening downward, and the rear side of the upper side wall of the activity chamber is fixed with a sand storage body. Using this device, the device can rotate around the center by setting The push plate, and the rotation diameter of the push plate can be controlled to realize the flat spreading of the tested sand, and the shape of this way of laying is relatively regular, which is convenient for measuring the area and has good accuracy.

Description

technical field [0001] The invention relates to an improved pavement structure depth detection device, and mainly relates to the field of building measurement equipment. Background technique [0002] Pavement texture depth, formerly known as texture depth, is an important indicator of pavement roughness. It refers to the average depth of the uneven opening pores on a certain area of ​​the road surface. It is mainly used to evaluate the macroscopic roughness, drainage performance and skid resistance of the road surface. The manual sanding method is to spread fine sand on the road surface and calculate the embedded unevenness. The ratio of the volume of the sand in the gaps on the uneven surface to the coverage area is used to obtain the depth of the structure. This is the most basic and commonly used method in engineering. The test method: spread a known volume of sand on the road surface to be tested At the measuring point, measure the area covered by flattening, and the ra...

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Problems solved by technology

It refers to the average depth of the uneven opening pores on a certain area of ​​the road surface. It is mainly used to evaluate the macroscopic roughness, drainage performance and skid resistance of the road surface. The manual sanding method is to spread fine sand on the road surface and calculate the embedded unevenness. The ratio of the volume of the sand in the gaps on the uneven surface to the coverage area is used to obtain the depth of the structure. This is the most basic and commonly used method in engineering. The test method: spread a known volume of sand on the road surface to be tested At the measuring point, measure the area covered by flattening, and the ratio of the volume of sand to the average area covered is the depth of the structure. The disadvantage of this method is that it is impossible to lay a better circle, and the difference in downforce will affect the depth of the structure. In addition, the measurement process requires sufficient cleaning and wall ventilation of the measurement area to prevent external factors from affecting the measurement accuracy

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