Structure platform back backfilling hydraulic tamping construction method

Abstract

The invention discloses a structure platform back backfilling hydraulic tamping construction method. The construction method comprises the following steps: leveling a site, lofting tamping points: measuring the initial elevation of each point, allowing equipment to be in place, and tamping with a rammer. According to the construction method, subgrade settlement is effectively treated, the engineering quality is improved, the construction progress is accelerated, the compaction degree after bridge and culvert abutment back backfilling is guaranteed, the subgrade stability is enhanced, and therefore the overall engineering quality is improved, the maintenance cost in the later period of road operation is reduced, the hydraulic rammer is installed on a loading machine, and other power sources do not need to be arranged by means of hydraulic power output of the hydraulic rammer. The connection is simple, rapid and reliable, and the method has good maneuverability, controllability and high efficiency, the hydraulic rammer has the advantages of being high in ramming energy, high in compaction speed, large in influence depth, soft in action and high and uniform in penetrating capacity, uniform compactness can be obtained within a large depth range, the compaction quality of the platform back of a structure is guaranteed, and therefore the roadbed quality is guaranteed, and the settling volume is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of engineering construction. Specifically, it is the construction method of hydraulic tamping and pressure backfilling on the back of the structure. Background technique [0002] The backfilling of the back of the structure is a key link in the construction stage of the subgrade. The quality of the backfill is related to whether the subgrade behind the back of the highway is completed and opened to traffic. Under normal circumstances, when backfilling, each layer does not exceed 15 cm. Usually, manual compaction and mechanical compaction are used for backfilling of the platform backfill. On the machine, when installing and dismounting the hydraulic rammer, it is necessary to manually install or disassemble the pin shaft, and the assembly of the pin shaft is generally tight, and two people are usually required for disassembly and assembly, and the connection of the hydraulic pipeline is also required. Labor...

AI Technical Summary

Problems solved by technology

[0002] The backfilling of the back of the structure is a key link in the construction stage of the subgrade. The quality of the backfill is related to whether the subgrade behind the back of the highway is completed and opened to traffic. Under normal circumstances, when backfilling, each layer does not exceed 15 cm. Usually, manual compaction and mechanical compaction are used for backfilling of the platform backfill. On the machine, when installing and dismounting the hydraulic rammer, it is necessary to manually install or disassemble the pin shaft, and the assembly of the pin shaft is generally tight, and two people are usually required for disassembly and assembly, and the connection of the hydraulic pipeline is also required. Laborious and time consuming

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