Composite material road tie plate and assembling technique

A technology of composite materials and backing plates, applied in the field of building materials, can solve the problems of easy deformation, insufficient rigidity, poor soil quality, etc., and achieve the effect of simple and fast assembly, light weight and high rigidity

Inactive Publication Date: 2007-11-28
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In emergency situations, such as: when earthquakes, floods and other disasters occur, the existing road surface engineering is damaged, and urgent repair or construction of traffic lanes is required to quickly transport and transfer materials and personnel. In emergency environments, there is often a lack of sufficient Time to build standard concrete pavement projects, especially in the southeastern coastal areas of my country, where the foundation is weak and the soil quality is poor, mainly muddy soil; at the same time, whe

Method used

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  • Composite material road tie plate and assembling technique
  • Composite material road tie plate and assembling technique
  • Composite material road tie plate and assembling technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The composite pavement backing plate of the present invention comprises a core material 1 made of paulownia wood, and panels 2 are laid on both sides of the core material 1, and the panels 2 are formed by curing two layers of biaxial glass fiber cloth and phenolic resin. Prepared by a hand lay-up process, the upper surface of the panel 2 is coated with an anti-slip coating 3 mixed with emery and resin. The adjacent backing plates are connected by canvas 10, and the canvas 10 is nailed to the backing plates by rivets 11 in advance. When an emergency occurs, the backing plates can be directly unfolded to form a road.

Embodiment 2

[0031] The composite pavement backing plate of the present invention comprises a core material 1 made of polyvinyl chloride foam, on the upper and lower surfaces of the core material 1 there are pointed grooves 4 arranged orthogonally, and at the intersection of the grooves 4 along the A circular perforation 5 is provided in the thickness direction of the core material 1, and a resin column 6 is formed after the resin is poured, and panels 2 are laid on both sides of the core material 1, and the panels 2 are made of four layers of four-axis glass fiber cloth and epoxy resin. It is made of cured resin and prepared by vacuum injection molding process. Boreholes 12 are reserved in advance on both side edges of backing plates, and iron chains 13 pass through the boreholes 12 to connect between adjacent backing plates.

Embodiment 3

[0033] The composite pavement backing plate of the present invention comprises a core material 1 made of polyurethane foam, which is cut along the thickness direction of the core material 1, and the cut position is two-way orthogonal and vertically arranged, and glass fiber is filled in the cut position Fabric, filled with vinyl resin to form a composite material web 9, the panels 2 are laid on both sides of the core material 1, three layers of four-axis glass fiber cloth are laid on the upper surface, and five layers of four-axis fiberglass cloth are laid on the lower surface. Glass / carbon hybrid fiber cloth layer, backing plate two sides are provided with male and female connecting edge, and screw hole 14 is arranged on connecting edge, can make the male and female connecting edge of adjacent backing plate opposite, and adopt bolt 15 to pass through screw hole 14 to tighten.

[0034] There are various preparation methods for the above-mentioned composite pavement backing plat...

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PUM

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Abstract

The invention relates to a composite road backing plate, comprising core material (1), faceplates (2) solidified by fiber cloth layer and resin and set at two sides of the core material (1) and non-skidding coating (3) set at the upper surface of faceplate (2). It is characterized in that the structure of connecting edges of backing plate can adopt male-female connecting edge, iron chain or canvas and so on. The invention can be used in building and repairing of urgent road in civil and national engineering. It is provided with light weight, high intensity, big rigidity, corrosion resistance, anti-stripping, convenient and quick assembly, repeatable usage, no damage for field environment and industrial production. Because the invention is made of light wood or foam core material and resin matrix fiber faceplate and resin column or resin web plate so on are formed on the core material, abilities of compressive resistance and shear resistance are improved while because adjacent backing plates are connected by canvas, iron chain or male-female connecting edge, the road for vehicle are assembled quickly.

Description

technical field [0001] The invention relates to a light-weight and high-strength composite material sandwich structure pavement backing plate, which can be used for quickly building temporary roads or quickly repairing damaged roads, and belongs to the field of building materials. Background technique [0002] When the vehicle passes through unfavorable places such as sandy beaches, swamps or silt, the wheels are prone to sink. In emergency situations, such as: when earthquakes, floods and other disasters occur, the existing road surface engineering is damaged, and urgent repair or construction of traffic lanes is required to quickly transport and transfer materials and personnel. In emergency environments, there is often a lack of sufficient Time to build standard concrete pavement projects, especially in the southeastern coastal areas of my country, where the foundation is weak and the soil quality is poor, mainly muddy soil; at the same time, when the existing pavement pro...

Claims

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Application Information

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IPC IPC(8): E01C9/08
Inventor 刘伟庆方海万里
Owner NANJING UNIV OF TECH
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