Micro-surfacing paving thickness measuring device for highway engineering

Abstract

The invention discloses a micro-surfacing paving thickness measuring device for highway engineering, and belongs to the technical field of road construction. The micro-surfacing paving thickness measuring device for highway engineering comprises a base, a limiting block is fixedly arranged on the left side of the top face of a supporting plate, a vertical groove is formed in the position, opposite to the end of the limiting block, of the left wall of a testing rod, a cavity is formed in the middle of the bottom face of the testing rod, a glass plate is embedded in the right wall of the cavity, and a plurality of inclined grooves are linearly formed in the inner wall of the cavity at equal intervals. A cleaning opening is coaxially formed in the middle of the top face of the testing rod, a sealing cover is arranged in the cleaning opening, two plate grooves are symmetrically formed in the front side and the rear side of the sealing cover, clamping plates are arranged at the outer side ends in the plate grooves, compression springs C are fixedly arranged between the inner side walls of the clamping plates and the inner side walls of the plate grooves, and clamping grooves are formed in the positions, opposite to the outer side ends of the clamping plates, of the inner wall of the cleaning opening. According to the micro-surfacing paving thickness measuring device, the test rod can be inserted into the micro-surfacing more quickly, the time and labor are saved, the thickness measurement work has higher preciseness, and the practicability is high.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to a device for measuring paving thickness at micro-surfaces for road engineering. Background technique [0002] Micro-surfacing is to use special mechanical equipment to mix polymer-modified asphalt, coarse and fine aggregates, fillers, water and additives according to the designed ratio to form a slurry mixture, spread it on the original road surface, and open the traffic soon. Anti-slip and durable thin layer, in the paving process of micro-surfacing, thickness control is a very important process, it is necessary to adjust the paving thickness through real-time testing, so that after paving, the performance of the pavement can reach the best good. [0003] After searching, the patent with the publication number CN212294268U discloses a device for measuring the paving thickness at the micro-surface for highway engineering. This device can not only clean the test needle ...

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Problems solved by technology

[0004] The method of inserting the test needle into the road in the existing device CN211772667U is not easy to insert the test needle into the solid road. Press the device, otherwise the device will be tilted due to the reaction force of the ground. Moreover, it is impossible to judge whether the position of the end of the test needle enters the soil below the micrometer during the use of the device. In view of this, we propose a device for measuring the pavement thickness at the micro-surface for highway engineering

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