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A combined track slab, prefabricated slab track system and its installation and construction method

A construction method and track slab technology, applied in the direction of track, road, ballast layer, etc., can solve the problems of many process steps, slow construction progress, lower track structure, etc., and achieve the goal of reducing process steps, saving construction period and reducing filling layer Effect

Active Publication Date: 2022-05-06
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the base and the filling layer need to be poured twice in the construction of the prefabricated slab track system in the prior art, and there are many technological processes that lead to slow construction progress, and at the same time increase the composition of the track structure and the amount of materials used. , providing a combined track slab, a prefabricated slab track system and its installation and construction method, the construction of the prefabricated slab track system can not only reduce the construction process, but also effectively reduce the height of the track structure, greatly improving the ballastless track system On-site installation and construction efficiency

Method used

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  • A combined track slab, prefabricated slab track system and its installation and construction method
  • A combined track slab, prefabricated slab track system and its installation and construction method
  • A combined track slab, prefabricated slab track system and its installation and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0071] This embodiment provides a combined track plate 4, such as Figure 5 and Figure 6 As shown, it includes a track plate 41 for installing the rail row structure, the bottom of the track plate 41 is connected with a limiting boss 42, and both the track plate 41 and the limiting boss 42 are prefabricated structures.

[0072] Since the limited boss 42 is connected to the track plate 41 of this program, the combined track plate 4 can be directly installed in the base, so that the structure is completed between the limit boss 42 and the base and the mutual spacing is not required. During the construction of the track system, the base is poured first, and then the filling layer is poured, thereby reducing the pouring process of the filling layer and improving the on-site installation and construction efficiency of the ballastless track system.

[0073] In the existing technology, such as figure 1 As shown, the track slab 41 is a slab structure, and a filling layer 10 is arra...

Embodiment 2

[0080] This embodiment provides a prefabricated slab track system, such as Figure 2-4 As shown, the prefabricated slab track system includes a rail row structure 1, a combined track slab 4, an isolation layer 6 and a base 7 from top to bottom, wherein the rail row structure 1 includes a steel rail 101, and is used to fix the The fastener 102 of the rail 101, the combined track plate 4 includes a track plate 41 for installing the rail row structure 1, the bottom of the track plate 41 is connected with a limiting boss 42, and the track plate 41 and the limiting The bosses 42 are all prefabricated structures, the isolation layer 6 is arranged on the bottom of the track plate 41 and the limit boss 42, and the base 7 is a cast-in-place base for fixing and supporting the combined track plate 4.

[0081] In the existing technology, such as figure 1 As shown, the track slab 4' is a slab structure, and a filling layer 10 is arranged below the track slab 4'. The filling layer 10 is p...

Embodiment 3

[0092] This embodiment provides a method for installation and construction of a prefabricated slab track system, such as Figure 2-4 shown, including the following steps:

[0093] a, prefabricated combined track plate 4, comprising track plate 41 and spacer boss 42, and isolating layer 6 is arranged on the bottom of described track plate 41 and spacer boss 42, forms the overall structure of track plate, and its Transported to the site, the connection methods of the track plate 41, the limit boss 42 and the isolation layer 6 can adopt the various methods in Embodiment 1;

[0094] b. Construction base reinforcement cage and laying formwork, make, place and fix the base reinforcement cage according to the design requirements, and erect the formwork of the cast-in-place base 7 according to the design size and position, the reinforcement cage of the base 7 adopts the structure and structure in the prior art size;

[0095] b. The overall structure of the track slab prefabricated i...

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Abstract

The invention relates to the technical field of railway track engineering, in particular to a combined track slab, a prefabricated slab track system and an installation and construction method thereof. The prefabricated slab track system of the present invention includes a rail row structure, a combined track slab, an isolation layer and a base, The rail row structure is installed on the combined track slab, the combined track slab includes a prefabricated track slab and a limiting boss, the limiting boss is connected to the bottom of the track slab, and the isolation layer is arranged at the bottom of the combined track slab , the base is a cast-in-place base, which is used to fix and support the combined track slab. Since the combined track slab is directly fixed in the cast-in-place base, there is no need to pour the filling layer, so the process of on-site concrete pouring is reduced. It greatly improves the construction efficiency of the ballastless track, reduces the construction cost and saves the construction period.

Description

technical field [0001] The invention relates to the technical field of railway track engineering, in particular to a combined track slab, a prefabricated slab track system and an installation and construction method thereof. Background technique [0002] At present, in domestic and foreign railway projects, there are mainly two types of track structures: ballastless track and ballasted track. The track bed structure of the ballasted track adopts the accumulation of crushed stone ballast to bear the upper track row structure to ensure the stability of the track frame; the track bed structure of the ballastless track adopts a whole structure made of reinforced concrete instead of the gravel track bed. The ballastless track is composed of rails, fasteners, sleepers, ballast bed slabs, bases and adjustment layers, etc. It has poor elasticity and requires high deformation of the offline foundation. It has good stability and can well maintain the geometric shape of the track. Red...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B1/00E01B2/00
CPCE01B1/00E01B2/00
Inventor 刘大园姚力庞玲江万红柏云吴承锦邓存宥董远巫江杜华杨翟淼易佳俊卢野邓希苏乾坤郝远行王根平王育恒何宁
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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