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

A floating slab and prefabricated technology, which is applied in the field of rail transit, can solve the problems of affecting the construction progress, long time-consuming leveling, slow construction speed, etc., and achieve the effect of improving construction speed, improving applicability, and simple operation

Active Publication Date: 2016-01-06
GERB QINGDAO VIBRATION CONTROL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the sake of safety, the vertical stiffness of a single plate end vibration isolator is usually greater than the vertical stiffness of other single elastic vibration isolators set in the floating plate. It is found in the test that the difference in vertical stiffness affects each other, resulting in When the floating slab is lifted and leveled in the traditional way, it needs to be raised and leveled several times to meet the design elevation requirements of the ballast bed, 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 prefabricated floating slabs and slow construction speed in the floating slab track bed have become a difficult problem in the industry that restricts the further promotion and application of this technology

Method used

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

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Experimental program
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Effect test

Embodiment 1

[0038] Taking each prefabricated floating slab in the floating slab track bed as an example, the prefabricated floating slab in the floating slab track bed of the present invention is jointly supported by four plate end vibration isolation devices and four built-in elastic vibration isolators as an example. The operation process of the installation jacking and leveling method shall be given specific instructions. For the convenience of understanding the method of the present invention, the basic structure of the involved floating slab ballast bed is firstly explained. The typical structure of the floating slab track bed is as follows figure 1 and figure 2 As shown, taking the prefabricated floating slab 2 as an example, it is jointly supported by four plate end vibration isolators 4 and four built-in elastic vibration isolators 8, separated from the surface of the foundation 6, and the elastic vibration isolators 8 are placed on the prefabricated In the coupling sleeve 5 fi...

Embodiment 2

[0077] Still taking the floating slab track bed described in Embodiment 1 as an example, each prefabricated floating slab is jointly supported by four plate end vibration isolation devices 4 and four built-in elastic vibration isolators 8, which is different from Embodiment 1. In the installation, lifting and leveling method of the prefabricated floating slab in the floating slab track bed of the present invention described in this example, when placing the prefabricated floating slab in step (1), follow the method described in step (1), and proceed sequentially Place and adjust the plane positions of multiple prefabricated floating slabs to form at least one installation section, and then implement the first lifting and leveling, the second lifting and leveling and precise jacking for each prefabricated floating slab in the installation section Lifting and leveling, so as to realize the installation, lifting and leveling of the prefabricated floating slab in the floating slab ...

Embodiment 3

[0081] Still taking the 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 of jacking up and leveling the prefabricated floating slab in the floating slab track bed of the present invention can also be used as The evolution is as follows, and the specific operation process is as follows:

[0082] (1) According to the plane position of the prefabricated 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 at the predetermined position, and then place the prefabricated floating slab in advance Use hoisting and transportation equipment to place on the plate end vibration isolation device, adjust the plane position of the prefabricated floating slab, and place and adjust the plane position of multiple prefabricated floating slabs in sequence according to the ab...

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PUM

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Abstract

The invention belongs to the field of track traffic, and relates to an installation, jacking and leveling method of a floating slab in a floating slab track bed, in particular to an installation, jacking and leveling method of a prefabricated floating slab in the floating slab track bed. The installation, jacking and leveling method of the prefabricated floating slab in the floating slab track bed is simple to operate. As proved by project trail laying, the prefabricated floating slab does not need to be heightened or leveled repeatedly in the installation process, one time of heightening and leveling can be basically achieved, and the method is quite convenient and rapid to operate, overcomes the technical bottlenecks of existing operation methods, further improves construction speed, meets the requirements of construction cycles, and largely improves the technical applicability of a steel spring floating slab track bed, thereby enabling the prefabricated floating slab to be quite wide in market application prospect.

Description

technical field [0001] The invention belongs to the field of rail transit, and in particular relates to a method for installing, jacking, and leveling a floating slab in a floating slab track bed, in particular to a method for installing, jacking, and leveling a prefabricated floating slab in a 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 structu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B1/00E01B27/00E01B26/00
Inventor 白廷辉尹学军毕湘利刘加华张明孙军溪刘富范利辉张宝才孔祥斐王乾安王永国尚旭东
Owner GERB QINGDAO VIBRATION CONTROL