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A mechanized rapid construction method for prefabricated assembled underground corridors

A construction method and prefabricated assembly technology, which is applied to artificial islands, water conservancy projects, underwater structures, etc., can solve problems such as the lack of prefabricated assembled underground corridor construction methods, so as to quickly adapt to changes in ground environmental conditions and reduce engineering costs. Cost, simple and quick operation

Active Publication Date: 2017-08-25
CCCC SECOND HARBOR ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summary, there is currently no prefabricated assembled underground corridor construction method suitable for shallow burial and mechanized operations

Method used

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  • A mechanized rapid construction method for prefabricated assembled underground corridors
  • A mechanized rapid construction method for prefabricated assembled underground corridors
  • A mechanized rapid construction method for prefabricated assembled underground corridors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Embodiment 1: When the corridor construction area is all pavement excavable, its construction method comprises the following steps:

[0072] 1) Excavate a long foundation pit at the beginning of the corridor. The excavation of the foundation pit may collapse due to the soil layer, so it is necessary to support the foundation pit. Insert steel sheet piles to reinforce the foundation pit to avoid the collapse of the foundation pit.

[0073] For specific supporting structures, see Figure 6 A row of 8 horizontal steel sheet piles is inserted along the horizontal direction of the corridor (the horizontal direction in this embodiment refers to the extension direction perpendicular to the corridor, and the longitudinal direction refers to the extension direction along the corridor) in the elongated foundation pit. For the soil mass at the starting end of the corridor, a row of longitudinal steel sheet piles 9 is respectively inserted along the longitudinal direction of the c...

Embodiment 2

[0091] Embodiment 2: In the construction area of ​​the corridor, the open-cut section of the road surface that can be excavated is constructed first, and then when passing through the area of ​​​​the road surface that cannot be excavated, underground excavation construction is required. The construction steps are as follows:

[0092] 1), the construction of open cut section is the same as the construction method recorded in embodiment 1.

[0093] 2) When the assembly cabin runs to the underground excavation section, it is necessary to adjust the assembly cabin 1 of the open excavation mode to the assembly cabin 1 of the underground excavation mode. The adjustment method is: use the gantry crane 5 to lift the screw conveyor 15 and the segment assembly machine 16 to the assembly cabin 1, remove the sealing door 1.5 on the second cross plate 2.1, install the screw conveyor 15 on the second cross plate 2.1, and install the segment assembly machine 16 on the first cross plate 1.3; ...

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Abstract

The invention relates to the technical field of underground passage construction, in particular to a rapid mechanized construction method of a prefabricated assembly type underground corridor. The rapid mechanized construction method comprises steps as follows: a pipe segment assembling device is assembled in a foundation pit, and prefabricated corridor pipe segments are hoisted to the pipe segment assembling device; a first ring pipe segment is pushed to a corridor starting end in the foundation pit, the ground in front of the foundation pit is excavated, and a corridor mounting groove is formed and supported; the pipe segment assembling device is driven by reaction generated through pushing of the pipe segment to move forward to a mounting location of a second ring pipe segment, the second ring pipe segment is pushed to be connected with the first ring pipe segment, the two ring pipe segments are assembled; residue soil formed by excavation of the corridor mounting groove is conveyed to the position above the first ring pipe segment and used for landfilling the first ring pipe segment, and the process is performed alternately sequentially until all the pipe segments are assembled and landfilling is completed. The method has the advantages of small risk, high construction speed, smaller influence on traffic, safe and reliable construction process and low comprehensive construction cost.

Description

technical field [0001] The invention relates to the technical field of underground passage construction, in particular to a mechanized rapid construction method for a prefabricated assembled underground corridor. Background technique [0002] With the development of the city, more and more pipelines are buried underground, and the buried pipelines are scattered and the location of the buried pipelines is difficult to determine. Repeated excavation has seriously affected road traffic. In order to reduce this impact, modern cities are planning and constructing underground comprehensive pipe corridors, and various pipelines are placed in the pipe corridor for centralized management to reduce road excavation and facilitate maintenance. In addition, as the urban traffic volume increases, the traffic pressure on the road surface is increasing. It is also very common to build underpass road tunnels to relieve the traffic pressure on the ground or at intersections. [0003] The tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/045
CPCE02D29/045E02D29/10
Inventor 翟世鸿杨钊彭强杨睿
Owner CCCC SECOND HARBOR ENG
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