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Open-cut method can repair three-arch three-cable subway station structure

A technology for subway stations and open cut, applied to underwater structures, infrastructure engineering, underground chambers, etc., can solve problems such as long construction period, increased strength loss, self-heaviness, etc., to achieve clear and reasonable force, improve The effect of service life and simple structure

Active Publication Date: 2018-10-12
CHINA ACAD OF BUILDING RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The common frame structure of subway stations designed by the existing open-cut method, the top beam generally adopts the structural form of normal flat beams and slabs. In other words, even if the stress tendon is installed inside the top beam, its height still exceeds 1.8m, which is equivalent to occupying 1 / 4 of the channel space, and its own weight is relatively large. The loss of its strength will increase, and the continuous safety of the structure cannot be guaranteed. Therefore, the building structure of the existing subway passageway does not maximize the compressive performance of concrete, and the construction period is long and the process is complicated. Visually, it also gives people a depressing feeling

Method used

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  • Open-cut method can repair three-arch three-cable subway station structure

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Embodiment Construction

[0036] Such as figure 1 As shown, the repairable subway station structure of an open cut method according to an embodiment of the present invention generally includes a side wall 30 arranged in the underground passage for supporting and preventing the side walls from collapsing, and arranged at the top of the underground passage to accept the upper The loaded roof 10 is supported by the side walls 30 on both sides of the top beam 20 below the roof 10, and the arch feet 21 arranged under the top beam 20 for connecting with the side walls 30 are arranged along the axial direction of the underground passage The middle plate girder 50 and the bottom arch 40 supporting the entire underground passage are prestressed cables 22 that apply a horizontal tension to the top beam 20 and the middle plate girder 50 .

[0037] The middle plate beam 50 can divide the underground passage into a plurality of independent passages laterally, so that one underground passage forms a plurality of ind...

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Abstract

The invention provides an open-cut-method repairable three-arch and three-cable subway station structure. The open-cut-method repairable three-arch and three-cable subway station structure comprises side walls arranged on the two sides of an underground channel, top beams, top boards, prestressed cables, a middle plate beam, and bottom arches, wherein the top beams are of an arc structure and are supported at the top end of the underground channel through the side walls on the two sides, and the span of the top beams is at least larger than 20 meters; the top boards are of an arc structure corresponding to the top beams, arranged on the top beams, and used for closing the upper portion of the underground channel; the prestressed cables are arranged below the top beams and used for being connected with two arch feet of the top beams so as to apply horizontal pulling force to the arch feet; the middle plate beam is arranged in the middle of the underground channel in the axial direction of the underground channel; and the bottom arches are laid at the bottom of the underground channel. Large span exceeding 20 meters between the top beams and middle arch beams can be achieved through the prestressed cables, the height of each layer of the subway channel is increased, and a more spacious space is provided for pedestrians.

Description

technical field [0001] The invention relates to the field of pipe gallery construction for underground engineering, in particular to a structure that utilizes an open cut method to construct a large-span and repairable arched subway passage, and can prolong the service life at the same time. Background technique [0002] According to the construction methods, subway stations can be divided into station structures constructed by open-cut method, cover-excavation method, underground excavation method and shield tunneling method. [0003] The common frame structure of subway stations designed by the existing open-cut method, the top beam generally adopts the structural form of normal flat beams and slabs. In other words, even if the stress tendon is installed inside the top beam, its height still exceeds 1.8m, which is equivalent to occupying 1 / 4 of the channel space, and its own weight is relatively large. The loss of its strength will increase, and the continuous safety of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/00E02D29/00
CPCE02D29/04
Inventor 孟达王涛宫剑飞张寒
Owner CHINA ACAD OF BUILDING RES
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