Soil sampling device for roadbed compactness detection based on engineering supervision

Abstract

The invention discloses a soil sampling device for roadbed compactness detection based on engineering supervision. A rotating rod is rotatably connected to the top end of a supporting plate, a clamping block is fixedly connected to the bottom end of the rotating rod, a fixed cylinder is clamped to the bottom end of the clamping block, and a connecting plate is fixedly connected to the top of the outer end of the fixed cylinder; sliding grooves are formed in the inner wall of the connecting plate at equal intervals, embedding holes are formed in the bottoms of the inner walls of the sliding grooves, and storage blocks are fixedly connected to the top end of the clamping block at equal intervals; the structure is provided with the clamping blocks, the sliding grooves, the embedding holes, telescopic springs and sliding blocks; through cooperation of the sliding grooves and the telescopic springs, the sliding blocks are shrunk in the storage blocks under the action of the telescopic springs; and when the clamping block is clamped at the top end of the fixed cylinder, the sliding blocks are clamped in the embedding holes through the acting force of the telescopic springs again, so thatthe fixed cylinder is convenient to install and fix, and the phenomenon of inclination does not occur in the soil sampling process.

Description

technical field [0001] The invention relates to the field of engineering supervision equipment, in particular to a soil-taking device for detecting the degree of compaction of a subgrade based on engineering supervision. Background technique [0002] The subgrade is the foundation of the track or road surface. It is a geotechnical structure formed by excavation or filling. The main function of the subgrade is to provide necessary conditions for the laying of the track or road surface and the operation of trains or vehicles. The existing general method for the detection of subgrade compaction It is the sand filling method. The sand filling method uses uniform particle measurement sand to replace the foundation soil in the test hole, and then converts the value of the degree of compaction of the subgrade according to the volume of the measurement sand and the weight of the replaced foundation soil; [0003] As disclosed in the prior art, there is a soil-borrowing device for en...

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Problems solved by technology

[0005] The present invention provides a soil-taking device for subgrade compaction detection based on engineering supervision, which can effectively solve the problem of lack of components for installing and fixing the collection components proposed in the above-mentioned background technology, resulting in skewing of the collection components during the actual soil-taking process. phenomenon, thus affecting the work of borrowing soil

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