Device suitable for eliminating bumping at bridge head and construction method

Abstract

The invention relates to a device suitable for eliminating bumping at a bridge head and a construction method, and belongs to the technical field of municipal engineering. The device suitable for eliminating bumping at the bridge head comprises a bridge abutment, abutment back filling soil and a roadbed, the abutment back filling soil abuts against the back of the bridge abutment, the roadbed abuts against the side, away from the bridge abutment, of the abutment back filling soil, a bridge body main beam is arranged at the upper end of the bridge abutment, a bridge deck is arranged at the upper end of the bridge body main beam, and a road surface is arranged at the upper ends of the abutment back filling soil and the roadbed. The system further comprises a pressure-bearing device, a connecting pipeline, a pressure pump and a liquid storage device, the pressure-bearing device and the liquid storage device are embedded in the upper end of the bridge abutment, and the lower end of one side of the bridge main beam abuts against the upper end of the pressure-bearing device. The pressure bearing device, the pressure pump and the liquid storage device are communicated through a connecting pipeline; and MEMS sensors are embedded in the bridge floor and the road surface respectively. After settlement information is monitored through the MEMS sensor, the pressure pump is controlled to adjust the height of the pressure bearing plate, it can be accurately guaranteed that the bridge floor and the road surface are at the same height, and therefore the phenomenon of bumping at the bridge head is effectively eliminated.

Description

technical field [0001] The invention relates to a device and a construction method suitable for eliminating vehicle jumping at the bridge head, and belongs to the technical field of municipal engineering. Background technique [0002] In the process of bridge construction, bridge structures with relatively high stiffness are generally used to meet the requirements of bearing capacity, which causes a large difference in stiffness between the bridge structure and the bridge-road transition section, and the road-bridge transition section and the bridge abutment will appear to varying degrees. Due to the difference in settlement, the smoothness of the road surface changes, which will seriously affect the normal use of the road, and cause the vehicle to jump when passing. There are three main reasons for the vehicle jump at the bridge head, namely: different strengths between the abutment and the subgrade, untimely drainage and fill loss, design problems and lax construction qual...

AI Technical Summary

Problems solved by technology

[0003] At present, a variety of methods have been proposed to solve the problem of bridge head jumping, such as: compaction control, using geogrids or setting up road slabs; these methods are designed for the transition section of the bridge road, but due to the The construction space is small and not easy to construct, so these methods undoubtedly increase the difficulty of construction

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