A hydraulic compaction method for backfilling bridge and culvert abutments

Abstract

The invention discloses a method for performing backfilling and hydraulic compaction on the stage back of bridges and culverts, and belongs to the technical field of backfilling construction of the stage back of the bridges and culverts. The method for performing backfilling and hydraulic compaction on the stage back of the bridges and culverts comprises the following steps that step 1, preparingwork before tamping is carried out; specifically, A1, a construction surface is leveled and rolled; A2, operation point layout is carried out, numbering and elevation measurement are carried out; A3,a rammer compactor is installed, a compaction plate is fixed to the lower part of a rammer; step 2, compaction work is carried out; specifically, B1, the rammer compactor is in place, every three hammers are taken as a group, and the settlement of each group is measured; B2, N groups of compaction is repeated; and B3, a machine is moved to the next operation point; step 3, the compaction surface is leveled after all the compaction points are rammed; and step 4, quality inspection is carried out. Compared with the traditional dynamic compaction technology, the method for performing backfillingand hydraulic compaction on the stage back of the bridges and culverts is small in an acting force peak value, high in striking frequency, soft in action and not prone to shearing a filling layer streamline; compared with vibration compaction technology, the compaction energy is high, penetration ability is high and uniform, impact depth is large, and relatively uniform compactness can be obtainedin a larger depth range. The method for performing backfilling and hydraulic compaction on the stage back of the bridges and culverts has the advantages of high strength, high efficiency, low energyconsumption, low noise, energy conservation and environmental protection.

Description

Technical field

[0001] The invention belongs to the technical field of backfill construction of the back of bridge and culvert abutments, and particularly relates to a method for hydraulic tamping of backfill of back of bridge and culvert abutments. Background technique

[0002] At present, in the process of backfilling the back of bridges and culverts, due to the influence of the narrow working surface and the safety distance from the structure, the use of vibratory rollers is not in place, and the dynamic compaction machinery has a greater impact on the structure, and the vicinity of the structure is not compacted. When it is in place, there will be an enlarged space that cannot be tamped. At the same time, traditional tamping machines are likely to cause real-time layer slip and separation caused by layering, resulting in low tamping quality, slow construction progress, and increased construction costs, etc. problem. Summary of the invention

[0003] The present invention aims...

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