High-fill roadbed bridgehead bumping prevention structure

A technology of vehicle jumping at the bridge head and soil roadbed, which is applied to roads, bridges, roads, etc., can solve the problems of difficult determination of the force performance and deformation performance, wrong platform at the bridge head, unfavorable bridge head jumping, etc., to alleviate the phenomenon of uneven settlement, The effect of reducing the phenomenon of vehicle jumping at the bridge head and increasing the phenomenon of vehicle jumping at the bridge head
CN112458873AActive Publication Date: 2021-03-09吕世宽
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
吕世宽
Publication Date
2021-03-09

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Abstract

The invention discloses a high fill roadbed bridgehead bumping prevention structure, which mainly relates to the technical field of roads and bridges, and comprises a bridge abutment and a beam plate,the beam plate is arranged on one side of the bridge abutment, and a structural cross beam is arranged on the other side of the bridge abutment, is arranged on a foundation roadbed, is close to the bridge abutment from the outside and is distributed in a step shape. The structural cross beam is provided with ear hooks, guide blocks and inserting grooves, a frame shear structure is arranged on thestructural cross beam, the frame shear structure comprises an upper concave-convex bearing plate and a lower concave-convex bearing plate, the upper concave-convex bearing plate and the lower concave-convex bearing plate are connected through a supporting tie bar, and an anti-bending rib for supporting the concave-convex bearing plate on the supporting tie bar is arranged on the supporting tie bar. A backfill layer is arranged in the frame shear structure, and a gravel layer, a hard soil layer and an asphalt pavement layer are sequentially arranged on the frame shear structure.
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Description

technical field

[0001] The invention mainly relates to the technical field of roads and bridges, in particular to an anti-jumping structure at the bridge head of a high-fill soil subgrade. Background technique

[0002] With the sustained and steady growth of my country's national economy, expressway construction has also entered a period of rapid development. The completion and use of expressways have played an important role in promoting the country's economic construction and alleviating the pressure of other transportation. However, it should also be noted that with the extension of use time, the continuous increase of traffic volume, and the increase of load capacity, many problems have appeared in the operation of expressways, and bridge head jumping is one of the most common problems.

[0003] Bridge head jumping is a common problem in road traffic. Bridge head jumping is caused by the settlement of the bridge head and the embankment at the junction of the bridge and ...

Claims

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