Ultra-deep narrow vertical shaft shield split launching construction method

A technology of split origination and construction method, applied in earth-moving drilling, mining equipment, tunnels, etc., can solve the problems of cross-influence between processes and low space utilization, achieve reasonable space utilization, save underground space, Clear timing effect

Pending Publication Date: 2022-01-28
CHINA RAILWAY TUNNEL GROUP CO LTD +1
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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 provide an ultra-deep narrow shaft shield split-body construction method to solve the technical problems of low space utilization and mutual influence between processes in the prior art

Method used

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  • Ultra-deep narrow vertical shaft shield split launching construction method
  • Ultra-deep narrow vertical shaft shield split launching construction method

Examples

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Embodiment 1

[0028] Example 1: A method for split-start construction of ultra-deep narrow shaft shield, see figure 1 and figure 2 , using a shield machine with an excavation diameter of 8.64m, the outer diameter of the lining segment in the shield section is 8.3m, the inner diameter is 7.5m, the ring width is 1.6m, and the thickness is 0.4m; each ring has 7 segments Composition, including 4 standard blocks, 2 connecting blocks, and 1 F block; the lining ring adopts a universal ring, the double-sided wedge shape is 46mm, and the number of supporting trailers behind the main machine of the shield machine is 6. The split-body starting construction method comprises the steps of:

[0029] (1) The first stage of the shield machine starting

[0030] ①Inoue Site Layout

[0031] According to the plan, hoist No. 1 to No. 6 trailers supporting the main engine of the shield machine in a U-shaped arrangement around the shaft, assemble and connect No. The pipeline, hydraulic oil pipeline, internal ...

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Abstract

The invention discloses an ultra-deep narrow vertical shaft shield split launching construction method which comprises the following steps: firstly, assembling a shield tunneling machine main machine and arranging a rear matching system and mud inlet and outlet pipe hoses under a vertical shaft, and placing shield tunneling machine rear matching trailers in a site around the vertical shaft; then, after the shield tunneling machine main machine tunnels for a certain distance, making one of the rear matching trailers transformed and then lowered into the well to be connected with the shield tunneling machine main machine, and making the rear matching system and the mud inlet and outlet pipes moved to the trailers; and finally, when the tunneling distance of the shield tunneling machine main machine reaches the length of the whole machine, withdrawing the trailers, installing all the rear matching trailers including the quitted trailer sequentially and moving the rear matching system to the corresponding trailer to finish the launching work of the shield tunneling machine. The method is high in space utilization rate, reasonable in site and space application, clear in time sequence overall planning and free of influence between procedures.

Description

technical field [0001] The invention relates to the technical field of shield tunneling construction for ultra-deep shafts, in particular to a split-starting construction method for ultra-deep narrow shaft shields. Background technique [0002] In recent years, more and more shield tunneling constructions have been applied in underground space, especially in urban subway projects, water conservancy projects, and urban comprehensive pipe gallery projects; since the originating shafts of shield tunneling are mostly located in urban areas, buildings, personnel Intensive, the area of ​​the shaft is extremely limited, which leads to the split method of shield tunneling; and because the shield tunnel needs to pass through important structures, rivers and lakes, and poor geological formations, the shaft is buried deep It is very large, which increases the difficulty of starting the shield split. [0003] In the narrow space at the bottom of the shaft, it is necessary to arrange an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06
CPCE21D9/06
Inventor 李逢魁吴建宏花煜蔡俊伦王鹏时伟强梁立威文峰柯文浩袁亚洲陈应强
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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