A device and construction method suitable for eliminating bridge head jumping

Abstract

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. The device suitable for eliminating vehicle jumping at the bridge head includes the abutment, the abutment backfill and the subgrade. The abutment backfill is in contact with the rear abutment back of the abutment. The main girder of the bridge body is set on the upper end of the bridge body, the bridge deck is set on the upper end of the main girder of the bridge body, the road surface is set on the upper end of the backfill of the platform and the subgrade, and it also includes pressure-bearing devices, connecting pipes, pressure pumps, liquid storage devices, and pressure-bearing devices. and the liquid storage device are respectively embedded in the upper end of the abutment, and the lower end of one side of the main girder of the bridge body is in contact with the upper end of the pressure device; the pressure device, the pressure pump and the liquid storage device are connected through connecting pipes; Equipped with MEMS sensors. After the settlement information is monitored by the MEMS sensor, the invention controls the pressure pump to adjust the height of the pressure plate, which can accurately ensure that the bridge deck and the road surface are at the same height, thereby effectively eliminating the phenomenon of vehicle jumping at the bridge head.

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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