Hole repairing device for measuring pavement compactness through sand filling method

Abstract

The invention discloses a hole repairing device for measuring pavement compactness through a sand filling method. The hole repairing device comprises a base, a bracket and a repairing cylinder, the base is composed of a bottom plate and four side plates, and the bottom plate is a rectangular plate; the side plates are long-strip-shaped plates. The four side plates are fixedly mounted at the edges of the bottom plate respectively, and the four side plates are sequentially connected end to end; a first round hole is formed in the bottom plate; an anti-scraping cylinder is further arranged on the base, the anti-scraping cylinder sequentially comprises an anti-scraping part and a first guide part from bottom to top, the anti-scraping part and the first guide part are both cylindrical, the inner diameter of the anti-scraping part is equal to the diameter of the first round hole, and the inner diameter of the first guide part is smaller than the diameter of the first round hole; and the center lines of the first round hole, the anti-scraping part and the first guide part coincide. According to the hole repairing device for measuring the pavement compactness through the sand filling method, a cutting edge can be conveniently prevented from being damaged.

Description

technical field [0001] The invention relates to the technical field of road detection, in particular to a hole repairing device used for measuring the compactness of road surfaces by sand filling method used in processing straight arm pin holes. Background technique [0002] The sand filling method is a standard method for testing the degree of subgrade compaction, and it plays a very important role in the quality control of highway engineering. However, the sand filling method still needs to manually excavate the soil layer and dig a pit to carry out the tank sand in actual operation, and the efficiency is low. [0003] In the prior art, there is also a device that uses a spiral blade to dig a hole, but if the hole is dug directly through the spiral blade, the side wall and bottom surface of the formed hole cannot meet the requirements, and still needs to be trimmed. Manual trimming is not only difficult to ensure the arc, but also difficult to ensure the flatness of the b...

AI Technical Summary

Problems solved by technology

And pressing the pressure cylinder to the side wall will cause the soil on the side wall to be compacted, thereby reducing the weight of the excavated soil and increasing the measurement error;

[0007] 3. Repair the hole by combining revolution and rotation. On the one hand, the radius of the revolution cannot be guaranteed; , it is easy to damage the blade of the first blade

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