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Precast slab assembled floating road bed

A floating track bed and prefabricated slab technology, which is applied in the field of rail transit, can solve the problems of track structure and train operation, many construction projects, difficult on-site maintenance, etc., so as to make up for high-frequency failure defects, good maintenance environment, and construction efficiency. high effect

Active Publication Date: 2015-06-03
BEIJING JIUZHOUYIGUI SHOCK & VIBRATION ISOLATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the construction of the existing steel spring floating slab track bed, the base is poured first, and then the floating slab track bed is constructed. An isolation layer is laid between the floating slab and the base to separate the base from the floating slab, and then the tool rail and the floating slab are used. The rail support frame adapted to the section form of the slab is used to adjust the geometric dimensions of the line. The type and standard of buckle fittings are the same as those of the ordinary integral ballast bed line. It is carried out every day, the process is complex and on-site maintenance is difficult, so there are disadvantages of many construction projects, complex processes, long construction period, and low efficiency; and in the prior art, a ballast shear force telescopic connection device is usually used between two adjacent floating ballast beds , which is to pre-embed a telescopic shear hinge in the middle of the end of the floating ballast bed. Although this device can prevent the vertical and lateral deformation of adjacent floating ballast beds from being too large, it is pre-buried in the ballast bed and cannot be inspected. Once damaged, it will fail , cannot be replaced, and will have adverse effects on the track structure and the operation of the train

Method used

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  • Precast slab assembled floating road bed
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  • Precast slab assembled floating road bed

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Embodiment Construction

[0035] Such as figure 1 As shown, the prefabricated slab-assembled floating track bed of the present invention includes: a plurality of prefabricated slabs laid sequentially in sequence; a plurality of connecting devices for fixedly connecting two adjacent prefabricated slabs, used for sequentially laying a plurality of prefabricated slabs Connected into one body to form an assembled floating track bed.

[0036] Among them, such as figure 2 , 3 , 4, the prefabricated slab of the present invention includes: a prefabricated slab main body 1, groove structures 2 are respectively provided at its two ends; two rows of rail bearing platforms 3 are arranged on the upper surface of the prefabricated slab main body 1; The outer sleeve device 4 of the inner sleeve of the device is set corresponding to the rail platform 3; the casing group arranged at the corners of both sides of the prefabricated slab body 1 includes four casings respectively arranged at the four corners of the prefa...

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Abstract

The invention discloses a precast slab assembled floating road bed, which comprises a plurality of precast slabs paved in sequence and a plurality of connecting devices for fixedly connecting two adjacent precast slabs, wherein the connecting devices are used for connecting the precast slabs integrally in sequence to form the assembled floating road bed. Groove structures are respectively arranged at both ends of the main body of the precast slab; a bushing group is arranged at corners on both sides of the main body of the precast slab; and the connecting device comprises a horizontal connecting board structure and a side vibration isolator. Each precast slab in the precast slab assembled floating road bed disclosed by the invention is precast in a factory in a concentrated manner, the finished product is good in quality, and the plurality of precast slabs are assembled when the floating road bed is constructed so that the construction period is short and the efficiency is high; the horizontal connecting board structure in the connecting device is arranged on the surface of the precast slab, and is simple in structure and convenient to use and check; the damaged parts out of work can be replaced; and the floating road bed in settlement state can be adjusted in time.

Description

technical field [0001] The invention relates to the field of rail transportation, in particular to a floating track bed assembled from prefabricated panels. Background technique [0002] The steel spring floating slab is a new type of high-grade track vibration isolation mainstream technology widely used in the subway industry in recent years. , constituting a classic "mass-spring" vibration isolation system, which has three-dimensional elasticity and stability, and can suppress and absorb solid-borne sound transmission, thereby reducing the impact of rail transit on the vibration and noise of the surrounding environment, and is used in domestic urban rail transit It has been more than ten years. [0003] During the construction of the existing steel spring floating slab track bed, the base is poured first, and then the floating slab track bed is constructed. An isolation layer is laid between the floating slab and the base to separate the base from the floating slab, and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B1/00E01B19/00
Inventor 邹长云邵斌汪根胜佟小朋孙方遒任奇王丽晓侯嘉孙燕李腾李贵花徐飞虎王超周迎春岑尧刘伟
Owner BEIJING JIUZHOUYIGUI SHOCK & VIBRATION ISOLATION
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