Highway subgrade settlement detection device

Abstract

The highway subgrade settlement detection device comprises a subgrade main body, a fixed drill hole is formed in the top surface of the subgrade main body, a bearing soil layer is arranged at the bottom of the subgrade main body, a fixed mounting hole is formed in the top surface of the bearing soil layer, and the fixed mounting hole and the fixed drill hole share a central axis; the fixed drill hole is filled with an expansive soil hole sealing body; the displacement of a roadbed can be detected in real time through the displacement detection mechanism, the position of the displacement detection mechanism can be corrected through the positioning mechanism, so that the displacement detection mechanism acts more smoothly, and the length of the residual resistance wire outside the insulating winding roller can be detected in real time through the length detection mechanism; the displacement of the roadbed can be calculated according to the residual length of the resistance wire outside the insulating winding roller, the real settlement of the roadbed can be calculated according to the displacement and the offset of the roadbed, the detection accuracy is high, the settlement information of the roadbed can be obtained in real time, and the highway roadbed settlement detection device is improved.

Description

technical field [0001] The invention relates to the field of subgrade settlement detection equipment, and more particularly, to a road subgrade settlement detection device. Background technique [0002] The road subgrade is the foundation of the road surface. It forms an integral structure with the road surface. It is the basic structure of the road. It can withstand the influence of traffic and natural factors. Practice has proved that without a solid and stable subgrade, there will be no stable road surface. The roadbed is the basic condition to ensure that the highway has good quality of use. Improving the strength and stability of the roadbed can ensure that the road surface is in a stable state for a long time, and reduce the construction and maintenance costs in the process of operation and management. The main role of the roadbed is to pave the road and Provide necessary conditions for driving operation, and bear the static and dynamic loads of rolling stock or road a...

AI Technical Summary

Problems solved by technology

[0003] The existing roadbed subsidence detection device is mainly composed of a magnetic ring, a conduit and a detection head. The conduit can be a straight pipe or a corrugated pipe. When installing, firstly drill a vertical hole on the roadbed until the vertical hole extends to the holding Then install the magnetic ring at the corresponding depth according to the geological conditions, then insert the catheter into the magnetic ring, and then fix the catheter vertically on the bearing layer, then fill the borehole with expansive soil, and seal the hole with expansive soil, so that The magnetic ring and the formation settle synchronously, and then use the detection head to insert the catheter to measure the position of the magnetic ring every once in a while, and then calculate the settlement of the roadbed through the change of the position of the magnetic ring, but the settlement of the roadbed cannot be detected online in real time, and the acquisition of information is difficult. In time, and the conduit extends beyond the ground, the construction machinery is easy to damage the conduit. Since the conduit extends beyond the ground, it will form a compaction dead angle, which reduces the compaction quality. At the same time, there are many factors that cause subgrade settlement. Lateral deviation will cause the conduit to tilt, and the settlement result of the subsequent detection will have a large error. Therefore, it is urgent to design a roadbed settlement detection device

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