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A construction technology of the stretch-shrinkable pavement at the level crossing between trams and municipal roads

A municipal road, intersection elastic shrinkage technology, applied in the direction of roads, roads, special pavements, etc., can solve the problems of undiscovered, inconsistent appearance of intersections, reducing the overall image of trams, etc., to achieve good service life, solve the problem of maintaining color and luster Inconsistent, low-cost effects

Active Publication Date: 2019-09-10
SUZHOU ZHONGHENGTONG ROAD & BRIDGE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the color difference between the white reinforced concrete pavement and the black asphalt pavement caused the overall appearance of the intersection to be incongruous, degrading the overall image of the comfortable and beautiful tram
Therefore the present invention has developed a kind of tramway and municipal road level crossing elastic body pavement and its construction technology, to solve the problems existing in the prior art, after searching, do not find the technical scheme identical or similar to the present invention

Method used

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  • A construction technology of the stretch-shrinkable pavement at the level crossing between trams and municipal roads
  • A construction technology of the stretch-shrinkable pavement at the level crossing between trams and municipal roads

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A kind of construction technology of elastic body pavement at the intersection of tram and municipal road, it is characterized in that: described construction technology is specifically as follows:

[0031] (1) Laying rails: fix a pair of guide rails on the subgrade in parallel through ground anchor bolts, nest the lower end inside the subgrade, set the upper end protruding from the upper end of the subgrade, and set a pair of damping blocks on the side, and place the lower end of the damping block Nesting is set inside the embankment;

[0032] (2) Pavement construction with asphalt structure: Mix the modified asphalt and polyester fiber evenly, pave it with a small paver, and then roll it 2 to 4 times with a double-drum vibratory roller, and finally use 26 tons of self-weight Roll the above rubber-tyred roller 3 times, and ensure the compactness of the asphalt pavement by riding the rubber-tyred roller on rails; then mix the modified asphalt and basalt evenly, and comp...

Embodiment 2

[0040] The present invention has also developed a construction technique for the elastic-shrinkage pavement at the level intersection between trams and municipal roads, which is characterized in that: the construction technique is specifically as follows:

[0041] (1) Laying rails: fix a pair of guide rails on the subgrade in parallel through ground anchor bolts, nest the lower end inside the subgrade, set the upper end protruding from the upper end of the subgrade, and set a pair of damping blocks on the side, and place the lower end of the damping block Nesting is set inside the embankment;

[0042] (2) Install wooden formwork: set an inverted L-shaped wooden formwork within the range of 100-120mm from the side of the rail, and fix it on the damping block with self-tapping screws;

[0043] (3) Pavement construction with asphalt structure: Mix the modified asphalt and polyester fiber evenly, pave it with a small paver, and then roll it 2 to 4 times with a double-drum vibratory ...

Embodiment 3

[0051] At the intersection of trams and roads that have been opened to traffic, first coordinate with the tram operation department and the traffic management department to determine the allowed construction time period, which is usually the time when trams are out of service at night, that is, from 23:00 to 04:00 the next day , according to the allowed time, prepare a detailed construction plan, the specific preparation plan is as follows:

[0052] (1) Accurately calculate the entire time from the intersection fence, cutting and excavating the old asphalt structure to the paving and rolling of the elastic body, and then determine the daily construction section length;

[0053] (2) Mix the elastic body mixture in advance for use, and immediately paint the elastic body mixture after cleaning each groove, and pave the elastic body mixture, followed by rolling;

[0054] In this embodiment, the overlap flow operation is formed from the intersection enclosure, cutting and excavatio...

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Abstract

The invention discloses an elastic pavement of a tram and urban road intersection and a construction technology thereof. A pavement structure comprises a roadbed, a pair of steel rails, elastic structures and an asphalt structure, wherein the steel rails are fixed at the upper end of the roadbed; the elastic structures are arranged at the lateral edges of the steel rails; the asphalt structure ispaved at the upper end of the roadbed. The construction technology mainly comprises the following steps: paving the steel rails; constructing the pavement of the asphalt structure; reversely digging the asphalt pavement at the overlapped joint of the steel rails; preparing an elastic mixture; painting an adhesive on an inner wall of a slot; paving the elastic mixture; rolling the elastic mixture;opening the traffic. The elastic structure is additionally arranged on the basis of the traditional structure according to the invention, so that the damage problem caused by the early rupture of theasphalt pavement at the overlapped joint of the steel rails can be solved; the colors of the elastic pavement and the original asphalt pavement are kept constant, so that the beautiful degree of the intersection is increased; the problem of inconstant colors of the reinforced concrete pavement structure and the original asphalt pavement is solved and the problem of ultralong construction time of the reinforced concrete pavement structure is solved.

Description

technical field [0001] The invention relates to a pavement structure and a construction process thereof, in particular to a construction process of an elastic-shrink pavement at a level intersection between a tram and a municipal road. Background technique [0002] Modern trams are used by many cities in China as a means of public transportation due to their advantages of energy saving and environmental protection, small investment, moderate passenger capacity, comfortable riding, and low maintenance costs in the later period. In order to keep the appearance of the level crossing between trams and municipal roads consistent with the overall appearance of the municipal road, asphalt pavement structure is used for most of the level crossing rails and between the upper and lower tracks, and a few of them use reinforced concrete pavement structure. [0003] Both asphalt pavement structure and reinforced concrete pavement structure have various disadvantages. For asphalt pavemen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C9/04
Inventor 魏邦贵莫吕群龙厚全李铭殷岭李文才王华东吴烨君
Owner SUZHOU ZHONGHENGTONG ROAD & BRIDGE GRP CO LTD