On-site detection device for compaction degree of roadbed layer of highway engineering

Abstract

The invention relates to the field of highway engineering, in particular to an on-site detection device for compaction degree of a roadbed layer of highway engineering. The on-site detection device comprises a fixing sleeve with an opening in the bottom, a sampling sleeve which is slidably connected into the fixing sleeve and is provided with the opening in the bottom, a driving mechanism which is arranged on the fixing sleeve and is used for driving the sampling sleeve to move in the length direction of the fixing sleeve and rotate at the same time, and a fixing mechanism arranged on the fixing sleeve, the outer walls of the two sides of the fixing sleeve are fixedly connected with horizontally-arranged supporting plates correspondingly, the fixing mechanism comprises fastening threaded sleeves and fastening screws, wherein the fastening threaded sleeves are fixedly connected to the top faces of the supporting plates in the vertical direction and communicate with the bottom faces of the supporting plates, and the fastening screws are in threaded connection with the interiors of the fastening threaded sleeves. The on-site detection device for the compaction degree of the roadbed layer of highway engineering has the effect of improving the accuracy of detecting the compactness by a cutting ring method.

Description

technical field [0001] The application relates to the field of highway engineering, in particular to an on-site detection device for the degree of compaction of road bases in highway engineering. Background technique [0002] The degree of compaction (originally: refers to the ratio of the dry density of soil or other road construction materials after compaction to the standard maximum dry density, expressed in percentage.) is one of the key indicators for the quality inspection of roadbed and pavement construction. , which characterizes the density status after on-site compaction. The higher the degree of compaction, the greater the density, and the better the overall performance of the material. For road base, pavement semi-rigid base and granular flexible base, the degree of compaction refers to the ratio of the actual dry density on the construction site to the maximum dry density obtained from the indoor standard compaction test; for asphalt surface and asphalt stabiliz...

AI Technical Summary

Problems solved by technology

[0003] When testing the degree of compaction in the existing ring-knife method, due to the limited tools at hand, the staff will use a hammer to knock the ring-knife into the foundation, and then use a shovel to shovel the foundation soil around the ring-knife, and then take it out. Ring knife, when this method is operated, when the hammer hits the edge, it may cause the ring knife to tilt, and at the same time, due to the hammer's hammering, it will also make the compaction of the soil Relative to the degree of compaction of the ground to be tested, the accuracy of the test results cannot be guaranteed

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