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Method for modifying shield driving system adapting to 22.5-degree duct pieces to adapt to 36-degree duct pieces

A technology of propulsion system and segment, which is applied in earth-moving drilling, vertical well equipment, wellbore lining, etc., can solve the problem that 36° segment assembly cannot be applied, and achieve the effect of shortening the transformation time, saving cost and reducing the total quantity

Active Publication Date: 2015-07-22
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a method suitable for the transformation of the 22.5° segment shield propulsion system to adapt to the 36° segment, and solve the problem that the shield machine suitable for the 22.5° segment cannot be applied to the 36° segment The problem of pipe assembly

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  • Method for modifying shield driving system adapting to 22.5-degree duct pieces to adapt to 36-degree duct pieces
  • Method for modifying shield driving system adapting to 22.5-degree duct pieces to adapt to 36-degree duct pieces
  • Method for modifying shield driving system adapting to 22.5-degree duct pieces to adapt to 36-degree duct pieces

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[0021] Combine below figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 The present invention is described further:

[0022] The invention provides a method for transforming the shield propulsion system adapted to 22.5° segments to adapt to 36° segments, and divides the oil cylinder arrangement of propulsion cylinders adapted to 22.5° segments into two axes according to the original 32 oil cylinders evenly distributed. Four quadrants, including the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant, the transformation of the first quadrant includes the following steps: Welding the extension shoe 10 on the original No. 1 shoe 1 of the propulsion cylinder to form a new 1 No. 1 brace shoe 5, new No. 1 shoe plate 11 is installed on the new No. 1 brace shoe 5, so that the propulsion brace shoe can meet the assembling of the capping block at the 18° position deviated from just above.

[0023] Divide the original...

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Abstract

The invention discloses a method for modifying a shield driving system adapting to 22.5-degree duct pieces to adapt to 36-degree duct pieces. An original oil cylinder arrangement of a propulsion oil cylinders adopting evenly distributed 32 oil cylinders and adapting to 22.5-degree duct pieces is divided into four quadrants according to two axes, first, second, third and fourth supporting shoes in the first quadrant of the propulsion oil cylinder are modified to form five sets of new supporting shoes, the modification of the symmetrical positions of the other three quadrants is the same with the first quadrant, and ten adjustment positions in the circumferential direction of 360 degrees are each provided with a set of oil cylinder corresponding to the occurrence position of a top sealing block of a 36-degree duct piece. The method solves the problem that a shield adapting to the 22.5-degree duct pieces can not adapt to the 36-degree duct pieces, the modification time is shortened, the waiting period when the shield equipment stops in the project continuing interval is shortened, and the equipment adaptability is enhanced.

Description

technical field [0001] The invention relates to the technical field of tunneling, in particular to a method for transforming a shield propulsion system adapted to a 22.5° segment to adapt to a 36° segment. Background technique [0002] At present, in the construction of domestic subway tunnel shield method, there are two specifications for the indexing of the longitudinal bolts of the preset segments used in tunnels with the same diameter. Among them, Guangzhou, Shenzhen, Xi’an, Nanchang, and Chengdu urban subways use an outer diameter of 6000 mm and an inner diameter of 6000 mm. 5400mm, the longitudinal bolt index is 36° prefabricated segment; Beijing, Zhengzhou, Wuhan, Shenyang urban subways use prefabricated segment with outer diameter 6000mm, inner diameter 5400mm, longitudinal bolt index is 22.5°. Each closed ring of these two segments is composed of 6 segments. In the sequence of assembling the 6 segments into a ring, the segment with beveled angles at both ends become...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06E21D11/08
Inventor 叶蕾庞培彦袁文征马哲宁浩淞
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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