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Device and method for solving road and bridge transition section bump problem

A transitional section and vehicle jumping technology, which is applied in the field of road and bridge engineering, can solve the problems of uneven settlement, abutments and subgrades that cannot be solved well, and achieve the effects of reducing settlement difference, reducing maintenance costs, and increasing service life

Inactive Publication Date: 2020-02-21
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from the point of view of specific engineering practice, it cannot solve the problem of uneven settlement of abutments and roadbeds.

Method used

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  • Device and method for solving road and bridge transition section bump problem
  • Device and method for solving road and bridge transition section bump problem

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] The specific steps are: figure 1 As shown, a connection structure is established in the road-bridge transition section, the connection structure is located between the abutment 9 and the original subgrade 1; the connection structure includes CFG pile 2, cushion layer 3, anti-settlement plate 4, filling structure 6, cement Soil grouting treatment area 7 and geonet 8;

[0027] The CFG pile 2 is located at the bottom layer, which effectively reinforces the original subgrade 1 and is used to reduce the settlement of the original subgrade 1; a cushion 3 is set on the CFG pile 2, and the length of the cushion 3 extends 1m into the backfill area of ​​the general subgrade section. The length of 3 is 0.2m longer than that of the anti-sedimentation plate 4, and the anti-sedimentation plate 4 is placed on the cushion layer, which effectively reinforces the original roadbed 1 and is used to reduce the settlement of the original roadbed 1. The requirement for the width of the cushi...

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Abstract

The invention discloses a device and method for solving a road and bridge transition section bump problem. The device for solving the road and bridge transition section bump problem comprises a connecting structure established at a road and bridge transition section. The connecting structure comprises a CFG pile, a cushion layer, an anti-settling plate, a soil filling structure, a cement soil grout treatment area and geonets, the CFG pile is located on the lowermost layer of the device, the cushion layer is arranged above the CFG pile, the cushion layer stretches into a common roadbed sectionrefilling area by 1m in length, the anti-settling plate is arranged above the cushion layer, the soil filling structure is arranged above the anti-settling plate, the soil filling structure is partitioned through the geonets, layered in parallel and filled with filler. Each geonet layer and various layers of filler of the soil filling structure are locked together, a stable plane is formed, the cement soil grout treatment area is in a wedge shape and is located at the upper portion of the soil filling structure, one end of the cement soil grout treatment area is connected with a bridge and culvert platform back behind a bridge platform, and the other end is connected with an original roadbed. By means of the device and method for solving the road and bridge transition section bump problem,the road surface service life can be prolonged, the bridge head bump phenomenon can be effectively prevented and treated, the road surface maintenance expense is greatly reduced and the road surfacemaintenance time is greatly shortened.

Description

technical field [0001] The invention belongs to the field of road and bridge engineering, and in particular relates to a device and a method for reducing the problem of vehicle jumping at the transition section of a road and bridge. Background technique [0002] In the practice of road and bridge construction projects, the problem of vehicle jumping at the bridge head often occurs. When dealing with the problem of vehicle jumping at the bridge head at home and abroad, abutment boards are often set up at the transitional section of the road and bridge, or the foundation is reinforced. However, from the point of view of specific engineering practice, it cannot solve the problem of uneven settlement of abutments and subgrades. Therefore, in the context of increasing traffic pressure, it is necessary to discuss the structural design of the roadbed and pavement in the transition section of the road and bridge to improve the comfort of the road and bridge. Contents of the invent...

Claims

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Application Information

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IPC IPC(8): E02D3/00E02D3/12E02D3/08E01C3/00E01C3/04
CPCE01C3/00E01C3/04E02D3/00E02D3/005E02D3/08E02D3/12
Inventor 肖桂元朱杰茹安冉韦桐忠江廷荟
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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