Highway roadbed abutment backfilling gravel inverted filter layer pavement device
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE THIRD ENG CO LTD OF CCCC SECOND HIGHWAY ENG BUREAU
- Publication Date
- 2019-07-05
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Abstract
Description
technical field
[0001] The invention belongs to the technical field of road construction equipment, and in particular relates to a paving device for backfilling a gravel reverse filter layer on the back of a road bed abutment. Background technique
[0002] In the process of highway construction, it is necessary to monitor the paving quality of the backfill anti-filter layer on the back of the roadbed under construction. At present, the commonly used method is to pave manually with shovels, which consumes relatively high labor costs, and the construction of workers is relatively random. Large, it is difficult to ensure the thickness and width of the pavement during the construction process. There are many super-sized materials in the material, and workers may not be able to clean up all the super-sized materials. The unqualified materials and construction specifications lead to construction failures. If the quality of the reverse filter layer is unqualified, it will affect th...