Open-cut type non-column large-span arched subway station structure as well as design and construction method

A technology for subway stations and open-cutting, applied in infrastructure engineering, underwater structures, artificial islands, etc., to achieve the effects of clear and reasonable force, convenient and feasible construction, and simple structure

Inactive Publication Date: 2017-06-20
JIAN YAN FOUND ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an open-cut column-free large-span arched subway station structure and design and construction method, thereby solving the aforementioned problems existing in the prior art

Method used

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  • Open-cut type non-column large-span arched subway station structure as well as design and construction method
  • Open-cut type non-column large-span arched subway station structure as well as design and construction method
  • Open-cut type non-column large-span arched subway station structure as well as design and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0037] refer to figure 1 , figure 2 and image 3 , the open-cut column-free large-span arched subway station structure described in this embodiment, the structure includes: a bottom plate 5, a side wall 1, a middle plate 7, a middle beam 4, an arch plate 6, an arch beam 2 and prestressed cables 3;

[0038] Two side walls 1 parallel to each other are relatively arranged on the base plate 5, and a passage is formed between the two side walls 1 oppositely arranged as a subway station passage; along the direction of the passage, a plurality of arch beams 2 arranged evenly, each arch The beam spans the tops of the two side walls 1, and an arch plate 6 is arranged between two adjacent arch beams 2, and each arch plate spans the top ends of the two side walls 1 and is located on the same arch beam. 2 The arch plates 6 on both sides are connected to each other; prestressed cables 3 are set between the two arch feet of the same arch beam 2; each arch plate 6 is connected to each si...

Embodiment

[0056] refer to Figure 4 , the present embodiment is used for the design and construction method of the open-cut column-free large-span arched subway station structure as described in embodiment 1, and the method includes:

[0057] S1, under a certain excavation condition of the foundation pit, two rows of slope protection piles 10 are designed and constructed to obtain the station passage;

[0058] First construct the slope protection piles 10, and then excavate the soil within the scope of the two rows of slope protection piles 10. During the excavation of the soil, use several anchor cables or horizontal inner supports to support the two rows of slope protection piles 10, and excavate the soil Side support slope protection pile 10, until the excavation reaches the design bottom elevation. The slope protection pile 10 generally adopts reinforced concrete material.

[0059] S2. At the bottom of the passageway of the station, according to the pre-design requirements, constr...

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Abstract

The invention discloses an open-cut type non-column large-span arched subway station structure as well as a design and construction method and relates to the field of subway and underground engineering as well as underground pipe gallery construction. The structure comprises a bottom plate, side walls, middle plates, middle beams, arched plates, arched beams, reinforcing tips and prestressed cables; the two side walls in parallel are oppositely arranged on the bottom plate; the multiple arched beams are evenly arranged in the passage direction; one arched plate is arranged between every two arched beams; the arched plates located on two sides of the same arched beam are connected with each other; one prestressed cable is arranged between two arch feet of the same arched beam; the middle beams are arranged in the middles of the two side walls; and one middle plate is arranged between the every two adjacent middle beams. The method is as follows: the prestressed cables are anchored and tensioned among the bottom plate, the side walls and the middle plates, among the middle beams, the side walls and the arched beams, among the arched plates, among the reinforcing tips and top ends of the side walls. With the structure and the method, the carrying force of end weak areas and the overall rigidity are improved, the lost height of the arched beams is increased, the beam height is reduced, the dead weight is reduced, and the phenomena of concrete cracking on lower edges and crushing on upper edges of the beams are avoided.

Description

technical field [0001] The invention relates to the field of subway and underground engineering and underground pipe gallery construction, in particular to an open-cut column-free large-span arched subway station structure and a design and construction method. Background technique [0002] According to the construction method, the structure of the subway station includes the station structure constructed by the open-cut method, the station structure constructed by the cover-excavation method, the station structure constructed by the underground excavation method and the station structure constructed by the shield method. [0003] As far as the general frame structure of the open-cut construction station structure is concerned, the top beam adopts the structural form of normal flat beams and slabs. If the open-cut construction station structure needs to form a large span without columns, the open-cut construction with a span of 22m As far as the station structure is concerned...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/045
CPCE02D29/045
Inventor 康富中宫剑飞
Owner JIAN YAN FOUND ENG
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