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Reinforcing device for preventing forward tilting of light-weight abutment abutment

A technology of reinforcement device and abutment, applied in the direction of bridge reinforcement, bridge, bridge maintenance, etc., can solve the problems of incomplete reinforcement, heavy burden, and hidden dangers that have not been fundamentally solved, and achieves the elimination of forward-leaning hidden dangers, remarkable effect, and construction quality. Guaranteed effect

Inactive Publication Date: 2013-03-13
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the abutment body still bears a certain amount of soil lateral pressure, which is still a heavy burden for the abutment that has been tilted forward and damaged
Although these reinforcement methods have certain effects, the reinforcement is not thorough, and the hidden dangers have not been fundamentally resolved.

Method used

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  • Reinforcing device for preventing forward tilting of light-weight abutment abutment

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Effect test

Embodiment

[0010] like figure 1 As shown, the light-duty abutment forward reinforcement device of the present invention, the abutment includes an abutment cap 2 and an abutment body 3 supporting the abutment cap 2, and also includes a retaining wall 1, and the retaining wall 1 is embedded in the filling behind the abutment in the soil.

[0011] The section shape of the retaining wall 1 is trapezoidal. The retaining wall 1 buried in the backfill of the platform is a mortar-laying rubble or rubble-concrete retaining wall.

[0012] The retaining wall 1 bears all or most of the soil side pressure behind the abutment, so that the abutment can be relaxed, part of the rebound reduces the forward tilt, and the back of the reinforced back does not squeeze the expansion joint. The construction quality is guaranteed, and the reinforcement is thorough, eliminating The hidden danger of abutment tilting forward is remarkable.

[0013] During construction, excavate a certain range of filling soil be...

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Abstract

The invention discloses a reinforcing device for preventing forward tilting of a light-weight abutment abutment. The light-weight abutment comprises an abutment cap and an abutment body supporting the abutment cap, wherein the light-weight abutment further comprises a retaining wall, the retaining wall is buried in filling soil behind the light-weight abutment, the cross-section of the retaining wall is trapezoid-shaped, and the retaining wall is formed by mortar and broken stones or broken stones and concrete. The retaining wall bears all or most of soil-side pressure behind the abutment, so as to relax the abutment and partially correct or reduce the forward tilting amount. After reinforcement, the expansion / contraction joint at the back of the abutment is not squeezed any more, which ensures the construction quality, makes the reinforcement complete, eliminates the hidden danger of forward tilting of the light-weight abutment and improves the effect.

Description

technical field [0001] The invention relates to an abutment reinforcement device, in particular to a light abutment forward tilting reinforcement device. Background technique [0002] Due to its light weight and variety of styles, light abutments are the main abutment form in bridges, especially urban bridges and bridges with poor foundations are the most widely used. Light-weight abutments are mainly composed of abutment back, ear wall, abutment cap, abutment body (front wall), cap and foundation. Among them, the ear wall is large or small, and the abutment body has various forms. The foundation often has expanded foundation or caps plus piles. Base. Due to insufficient design of some light abutments or changes in the condition of the middle soil in later use, the lateral pressure of the soil behind the abutment is relatively large, and the abutment itself is difficult to resist this horizontal thrust, causing the abutment body to tilt toward the bridge span, pushing the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00E02D29/02
Inventor 单成林余锦州许薛军雷江涛
Owner SOUTH CHINA UNIV OF TECH
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