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Temporary Support System for Transverse Passage of Subway Underground Tunnel

A technology of temporary support and transverse passage, applied in the direction of temporary shield, mining equipment, earthwork drilling, etc., can solve problems such as affecting construction safety and complex stress transformation, and achieve the effect of reasonable force and restraining clearance convergence.

Inactive Publication Date: 2016-11-30
CHINA CONSTR FOURTH ENG DIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Underground excavation of subway mining method excavates the cross passage through the vertical shaft, and then excavates the main line tunnel in the cross passage that has been supported at the initial stage. Therefore, the cross passage faces multiple excavations, and the stress transformation is complicated, which affects the construction safety.

Method used

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  • Temporary Support System for Transverse Passage of Subway Underground Tunnel

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with accompanying drawing.

[0016] Such as figure 1 As shown in the figure, a temporary support system for the cross passage of underground excavated subway tunnels, the temporary support system consists of the initial support structure 1 for the portal of the upper cross passage, the initial support structure 2 for the portal of the lower cross passage, and the shaped steel frame 3 for the rear upper portal , Front upper door-shaped steel frame 4, Rear cross passage initial support structure 7, Front cross passage initial support structure 8, Rear support wall 9, Front support wall 10, Rear lower door steel frame 5 and Front lower hole The door steel frame consists of 6 steel frames.

[0017] The rear support wall 9 is connected to the initial support structure 7 of the rear cross passage, the front support wall 10 is connected to the initial support structure 8 of the front cross passage, the initi...

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Abstract

The invention discloses a temporary supporting system for a transverse passage of a metro subsurface tunnel. The temporary supporting system is composed of an upper transverse passage tunnel portal primary supporting structure, a lower transverse passage tunnel portal primary supporting structure, a rear upper tunnel portal profiled bar steel frame, a front upper tunnel door profiled bar steel frame, a rear transverse passage primary supporting structure, a front transverse passage primary supporting structure, a rear supporting wall, a front supporting wall, a rear lower tunnel portal profiled bar steel frame and a front lower tunnel portal profiled bar steel frame. Compared with the prior art, the temporary supporting system has the advantages of being capable of guaranteeing construction safety, convenient in construction and reasonable in stress.

Description

technical field [0001] The invention relates to, in particular, a temporary support system for a cross passage of a subway underground excavation tunnel. Background technique [0002] Underground excavation of subway mining method excavates the cross passage through the vertical shaft, and then excavates the main line tunnel in the cross passage that has been supported at the initial stage. Therefore, the cross passage faces multiple excavations, and the stress transformation is complicated, which affects the construction safety. Contents of the invention [0003] The object of the present invention is to provide a temporary support system for the cross passage of underground excavated subway tunnels. On the one hand, the temporary support system for the cross passage of underground excavated subway tunnels ensures construction safety, and on the other hand, it is convenient for construction and has reasonable stress. [0004] The technical solution of the present inventio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D19/00
CPCE21D19/00
Inventor 周帅唐勇
Owner CHINA CONSTR FOURTH ENG DIV