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Method for excavating holes on subway tunnel rail support walls

A channel bearing and wall technology, applied in the field of construction, can solve problems such as no reference value, and achieve the effects of short construction period, high safety factor, and simple and reasonable structure.

Active Publication Date: 2012-07-11
CHINA RAILWAY SHANGHAI DESIGN INST GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the hole opening methods collected at home and abroad are the connection between the main body of the new station and the auxiliary structure. This process is a normal civil construction process, and the interface conditions have been reserved, and the station is still in the construction process. So there is no reference value

Method used

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  • Method for excavating holes on subway tunnel rail support walls
  • Method for excavating holes on subway tunnel rail support walls
  • Method for excavating holes on subway tunnel rail support walls

Examples

Experimental program
Comparison scheme
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Embodiment

[0019] Embodiment: This embodiment is realized through the following steps:

[0020] 1) Erection of temporary underpinning frame: as figure 1 , 2 As shown, underpinning frames are erected on the inner and outer sides of the existing rail-bearing wall 5 wall pre-opening area 6 of the channel 4 in the station 1. Underpinning frame 11 is made up of the door frame structure of inner and outer sides, and each door frame structure is all made of lintel 3 and the door post 2 that is fixed on its two ends, and door post 2 and lintel 3 are perpendicular to each other. The doorpost 2 and the lintel 3 are respectively provided with connection holes, and the two door frame structures on the inner and outer sides are fixedly connected as a whole by the short crossbeam 7 arranged in the connection holes on the doorpost 2 and the lintel 3 . The bottom surface of the short beam 7 is parallel to the bottom surface of the lintel 3 , and the side surfaces are parallel to the side surfaces of t...

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Abstract

The invention relates to the field of buildings, in particular to a method for excavating holes on subway tunnel rail support walls, which is characterized by including at least the steps: erecting a temporary underpinning frame on the inner side and the outer side of a hole required area of a wall; excavating the hole required area on the wall; casting beams and columns of an obtained door hole frame after excavation; and removing the temporary underpinning frame. The method has the advantages that the temporary underpinning frame used in the method is simple and reasonable in structure, process is simple, construction period is short, effective support is supplied to track bed structural slabs, safety coefficient is high, and the existing subway station structure is made the best use and not destructed.

Description

technical field [0001] The invention relates to the field of construction, in particular to a method for opening holes in a rail-bearing wall of a subway passage. Background technique [0002] At present, with the increasing popularity of subway rail transit, people are increasingly relying on subway rail transit when traveling, and the passenger flow is also increasing. However, because some subways operate on a common line in certain underground sections, the underground transfer halls involving common line operation often experience congestion. When the transportation capacity is close to saturation, with the continuous growth of passenger flow in the future, the contradiction of transportation capacity distribution in the collinear section will become increasingly prominent, so the underground transfer hall must be remodeled. [0003] In the transformation process of the underground transfer hall, opening up new transfer channels has become a new topic. When renovating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/055
Inventor 吴跃华崔惠明冯仁麟邢澄
Owner CHINA RAILWAY SHANGHAI DESIGN INST GRP