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Installation and leveling method of floating slab in prefabricated floating slab track bed

A floating slab and prefabricated technology, which is applied in the field of rail transit, can solve the problems of increasing the number of steps for adjusting the height and leveling of the floating slab, affecting the construction progress, and taking a long time for leveling, so as to achieve broad market application prospects and improve applicability , Improve the effect of construction speed

Active Publication Date: 2015-09-02
GERB QINGDAO VIBRATION CONTROL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the short length of the prefabricated floating slab, there are more steps to adjust the height and level of the floating slab, and the precision is required to be higher. Otherwise, mutual interference will be formed between adjacent floating slabs, especially to prevent warping. Due to the plate effect, a common plate end vibration isolation device is often installed between adjacent floating plates, and the problem of mutual influence between adjacent floating plates is more prominent, resulting in the need for traditional lifting and leveling of floating plates. Only by adjusting the height and leveling many times can the design elevation requirements of the ballast bed be met, which affects the progress of the entire construction to a certain extent
[0003] How to solve the problems of long time-consuming lifting and leveling of the floating slab and difficult operation in the prefabricated floating slab track bed, so as to achieve the purpose of further improving the construction speed, has become a difficult problem in the industry that restricts the further promotion and application of this technology

Method used

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  • Installation and leveling method of floating slab in prefabricated floating slab track bed
  • Installation and leveling method of floating slab in prefabricated floating slab track bed
  • Installation and leveling method of floating slab in prefabricated floating slab track bed

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Effect test

Embodiment 1

[0031] Taking each floating slab in the prefabricated floating slab track bed as an example, the operation process of the method for installing and leveling the floating slabs in the prefabricated floating slab track bed of the present invention will be described in detail below. In order to facilitate the understanding of the method of the present invention, the basic structure of the involved prefabricated floating slab track bed is firstly explained. The typical structure of the prefabricated floating slab track bed is as follows figure 1 and figure 2 As shown, taking the floating plate 2 as an example, it is jointly supported by four plate end vibration isolation devices 10, separated from the surface of the foundation 6, and a height adjustment backing plate 7 is set between the plate end vibration isolation device 10 and the floating plate 2, in order to To ensure the smooth transition load of the floating slabs during the working process and the coordinated force, the...

Embodiment 2

[0046] Still taking the prefabricated floating slab track bed with the structure described in Embodiment 1 as an example, each floating slab is jointly supported by four plate end vibration isolation devices. In the jacking, installation and leveling method of floating slabs in the track bed, when placing the floating slabs in step (1), place and adjust the plane positions of multiple floating slabs in sequence according to the method described in step (1). At least one installation section is formed, and the initial lifting and leveling and precise lifting and leveling are performed on each floating slab in the installation section, so as to realize the installation and leveling of the floating slab in the prefabricated floating slab track bed.

[0047] In the jacking installation and leveling method of the floating slab in the prefabricated floating slab track bed of the present invention described in this example, the initial jacking and leveling and precise jacking and leve...

Embodiment 3

[0050] Still taking the prefabricated floating slab track bed with the structure described in Embodiment 1 as an example, based on the technical principles of Embodiment 1 and Embodiment 2, the method for jacking, installing and leveling the floating slab in the prefabricated floating slab track bed of the present invention is also It can be evolved as follows, and the specific operation process is as follows:

[0051] (1) According to the plane positions of the floating slab and the vibration isolator at the end of the slab marked by the line on the ballast bed foundation, place the vibration isolator at the end of the slab respectively at the predetermined position, and then transport the pre-processed floating slab by hoisting Place the equipment on the plate end vibration isolation device, adjust the plane position of the prefabricated short floating slab, place and adjust the plane position of multiple prefabricated short floating slabs sequentially according to the above ...

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Abstract

The invention belongs to the field of rail transit, and relates to a method for lifting and leveling a floating slab in a floating slab track bed, in particular to a method for installing and leveling the floating slab in a prefabricated floating slab track bed. The method is simple, height adjustment and leveling do not need to be carried out on the floating slab repeatedly, height adjustment and leveling can be achieved in one time basically, convenience and fastness are achieved, technical difficulties of an existing operation method are overcome, construction speed is further improved, requirements for the construction period are met, the applicability of the steel spring floating slab track bed technique is improved greatly, and market application prospect is broad.

Description

technical field [0001] The invention belongs to the field of rail transportation, and in particular relates to a method for lifting and leveling a floating slab in a floating slab track bed, in particular to a method for installing and leveling a floating slab in a prefabricated floating slab track bed. Background technique [0002] Vibration and noise are recognized as the most widely affected public hazards, and they are also a problem that needs to be solved urgently in the development of rail transit in recent years. Among the existing rail transit vibration and noise reduction technologies, the most successful practical application is the component floating technology, typically the floating slab track bed technology, which has high vibration isolation efficiency and stable working performance, which has become a consensus in the industry. For example, the patent The Chinese patent No. ZL200410035441.1 discloses a built-in floating slab track bed structure. However, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B29/00
Inventor 白廷辉尹学军葛世平平轶巫校兵何永春刘扬王建立高星亮孔祥斐薛松刘东李维赞
Owner GERB QINGDAO VIBRATION CONTROL