Semi-rigid base layer for preventing bumping at bridgehead and construction process

A semi-rigid base, bridge head jumping technology, used in bridges, bridge parts, bridge construction and other directions, can solve problems such as uneven settlement of abutments and embankments

Pending Publication Date: 2021-11-19
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a semi-rigid base and construction technology for preventing vehicle jumping at the bridge head, aiming at solving the problem of uneven settlement between the bridge abutment and the embankment

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  • Semi-rigid base layer for preventing bumping at bridgehead and construction process
  • Semi-rigid base layer for preventing bumping at bridgehead and construction process

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Embodiment Construction

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0023] In describing the present invention, it is to be understood that the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer" ” and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so...

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Abstract

The invention discloses a semi-rigid base layer for preventing bumping at bridgehead and a construction process. A first rigid base layer is fixedly connected with a bridgehead transition slab, a common base layer is fixedly connected with the first rigid base layer, a first semi-rigid base layer is fixedly connected with the first rigid base layer, and a second rigid base layer is fixedly connected with the first semi-rigid base layer; the first semi-rigid base layer is fixedly connected with the first rigid base layer, the second semi-rigid base layer is fixedly connected with the second rigid base layer, an asphalt concrete surface layer is fixedly connected with the second semi-rigid base layer, a first geogrid is fixedly connected with the first semi-rigid base layer, and a second geogrid is fixedly connected with the second semi-rigid base layer; the first semi-rigid base layer and the second semi-rigid base layer are formed by matching lime, fly ash and gravel, one side of the first semi-rigid base layer and one side of the second semi-rigid base layer are connected with the bridge end transition slab, and the other side of the first semi-rigid base layer and the other side of the second semi-rigid base layer are connected with the common base layer, so borne loads are evenly distributed, and a real transition section is formed between the bridge end transition slab and the common base layer; and a problem of non-uniform settlement between the bridge abutment and the embankment is solved.

Description

technical field [0001] The invention relates to the technical field of highway design and construction, in particular to a semi-rigid base layer and a construction process for preventing vehicle jumping at the bridge head. Background technique [0002] The problem of vehicle jumping at the bridge head in the transition section of road and bridge has always been a difficult problem in road construction. The lower part of the existing abutment generally has a pile foundation that is a rigid structure, while the embankment is flexible, and will produce large plastic deformation under the action of the vehicle load. Due to the different settlement rates of the abutment and the embankment, after a period of time, the bridge There will be obvious misalignment between platforms and embankments. When the vehicle passes through the misalignment, it will cause bumps, which will seriously affect the driving comfort, reduce the speed of the vehicle, and even cause the vehicle to overtur...

Claims

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Application Information

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IPC IPC(8): E01D19/00E01C3/00E01C3/04
CPCE01D19/00E01C3/00E01C3/04
Inventor 肖桂元丁健殷乐刘学才杨彦军
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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