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Process for constructing shield rapid inspection shaft

A construction technology and maintenance well technology, which is applied in the direction of sinking, shaft equipment, shaft lining, etc., can solve problems such as high risk, and achieve the effects of safe and stable structure, fast construction speed and convenient construction operation

Inactive Publication Date: 2014-05-21
BEIJING NO 4 MUNICIPAL CONSTR ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One of the methods is to open a warehouse for maintenance in the cave, but it is also risky

Method used

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  • Process for constructing shield rapid inspection shaft
  • Process for constructing shield rapid inspection shaft
  • Process for constructing shield rapid inspection shaft

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Embodiment Construction

[0017] Please refer to the attached figure 1 to attach Figure 4 Shown, the present invention is a kind of construction technique of shield tunneling rapid maintenance well, and it comprises following process steps:

[0018] 1) For the construction of the locking ring beam 1, steel bars are reserved at the bottom of the locking ring beam 1 (not shown);

[0019] 2), shaft expansion: the expansion is carried out with the standard that the vertical angle of the expansion surface is not greater than 45°;

[0020] 3), construction of the shaft body 2: the retaining wall of the shaft adopts steel bar grid 3 plus concrete anchor shotcrete, and the thickness of the retaining wall is 300mm; for welding;

[0021] 4) Matou gate construction in the shaft: construct a vault gate type Matou gate 4 on the shaft side wall of the shield tunneling axis;

[0022] 5), Shaft back cover 5: use a steel frame to cover the bottom of the shaft to control the uplift of the bottom of the shaft.

[0...

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Abstract

The invention relates to a process for constructing a shield rapid inspection shaft. The process includes the following steps that firstly, a lock catch ring beam with steel bars reserved at the bottom is constructed; secondly, expanding excavation of a vertical shaft is carried out according to the standard that the vertical included angle of expanding excavation surfaces is smaller than or equal to 45 degrees; thirdly, the shaft body of the vertical shaft is constructed, wherein the retaining wall of the vertical shaft is formed by steel bar gratings and concrete in an anchoring and shotcreting mode and is 300 mm in thickness, and the steel bar gratings are connected with the reserved steel bars of the lock catch ring beam; fourthly, an ingate is constructed in the vertical shaft, wherein the arch-crown-gate-type ingate is constructed on the vertical shaft side wall along the tunneling axis of a shield; fifthly, the bottom of the vertical shaft is sealed through a steel bar truss to be prevented from hunching. The process for constructing the shield rapid inspection shaft is suitable for shield inspection shaft construction under various geological and hydrologic conditions, thereby bringing convenience to inspection of the shield under the shaft. The shield inspection shaft has the advantages of being safe and stable in structure, flexible in space layout, convenient to construct and operate, high in construction speed, small in occupied area and the like.

Description

【Technical field】 [0001] The invention relates to a building structure and a construction method thereof, in particular to a shield maintenance well and a modular construction process thereof. 【Background technique】 [0002] When the tunnel shield method is constructed under the geological conditions of large-sized gravel and some large boulders, the wear of the cutter head is bound to be serious. If the shield machine does not open the warehouse to inspect the cutter head and cutters, the construction will not be able to proceed smoothly. [0003] One of the methods is to open a warehouse for maintenance in the cave, but it is also risky. However, if a small shaft is excavated on the ground, the risk of maintenance can be reduced. At the same time, the shaft can expand the inner diameter space, improve work efficiency, and speed up maintenance. [0004] Therefore, in order to solve the above technical problems, it is indeed necessary to provide a shield maintenance well a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D1/08E21D5/11E21D8/00
Inventor 刘其铎陈希林姜雪强史磊磊卢常亘史亚军胡建军郭彩霞
Owner BEIJING NO 4 MUNICIPAL CONSTR ENG
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