Roadbed compactness detection device for road engineering detection

Abstract

The invention discloses a roadbed compactness detection device for road engineering detection, and relates to the technical field of road engineering. The roadbed compactness detection device for road engineering detection comprises a drying box, an opening is formed in the top of the drying box, a discharging opening is formed in the bottom of the drying box, a fixing shell is arranged at the top of the drying box, a machine box is arranged in the fixing shell, and a funnel frame is fixedly installed on the inner wall of the drying box. Through cooperative use of convex rods, a rotating block, a second motor, a connecting rod, a lifting rod, a knocking rod, a spring and a transmission block, soil in a cutting ring can be hammered by the bottom end of the knocking rod, the complexity of manual soil sampling is reduced, the soil sampling efficiency is improved, and through cooperative use of positioning blocks, guide rods, second threaded rods and connecting blocks, the machine box can be driven to ascend and descend, so that the knocking rod in the machine box can move downwards, the bottom of the knocking rod can make contact with soil, and the soil in the cutting ring can be conveniently taken out.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to a roadbed compactness detection device for road engineering detection. Background technique [0002] Generally, there are three types of compaction detection for road soil subgrade: ring knife method, sand filling method and water bag method. However, the ring knife method is more cumbersome in the process of road inspection. Usually, the ring knife is manually knocked on the soil subgrade Inside, the ring knife that hit the soil must also be taken out. Due to the compaction of the roadbed, it is difficult to take out the ring knife. After the ring knife is taken out, the soil inside the ring knife needs to be taken out. Difficult, and the removed soil needs to remove the internal moisture, so that the ratio of the on-site dry density to the maximum dry density measured in the laboratory can be measured. Contents of the invention [0003] The object of the present inv...

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Problems solved by technology

[0002] Generally, there are three types of compaction detection for road soil subgrade: ring knife method, sand filling method and water bag method. However, the ring knife method is more cumbersome in the process of road inspection. Usually, the ring knife is manually knocked on the soil subgrade Inside, the ring knife that hit the soil must also be taken out. Due to the compaction of the roadbed, it is difficult to take out the ring knife. After the ring knife is taken out, the soil inside the ring knife needs to be taken out. Difficult, and the removed soil needs to remove the internal moisture, so that the ratio of the on-site dry density to the maximum dry density measured in the laboratory can be measured

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