Subway station constructed by adopting rectangular jacking pipes combined with interval shields and construction method

A subway station, rectangular pipe jacking technology, applied in mining equipment, earthwork drilling, tunnels, etc., can solve problems such as inability to form departure/acceptance conditions, single form of subway stations, and difficult passage of shield tunnels, etc., to achieve guaranteed connection Reliability, flexible form, and construction cost saving effects

Active Publication Date: 2017-02-22
JINAN RAILWAY TRANSPORT GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The end shaft must be constructed first, otherwise the starting / accepting conditions cannot be formed, and the shield tunnel is difficult to pass
[0004] 2. The subway station has a single form, basically a rectangular frame structure system
[0005] 3. Before the construction of the main structure, it is necessary to construct the enclosure structure (not as the main structure), resulting in waste of resources
[0006] In order to overcome the shortcomings of the above-mentioned subway station construction methods, the method of using prefabricated components to build subway stations has gradually developed, forming a rectangular frame structure of subway stations that are prefabricated in a factory and then assembled (Changchun Metro Line 2 Yuan Jiadian station); but still not overcome the shortcomings of the above-mentioned subway station, therefore, the construction of the subway station still needs further optimization and innovation

Method used

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  • Subway station constructed by adopting rectangular jacking pipes combined with interval shields and construction method
  • Subway station constructed by adopting rectangular jacking pipes combined with interval shields and construction method
  • Subway station constructed by adopting rectangular jacking pipes combined with interval shields and construction method

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Experimental program
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Effect test

Embodiment 1

[0065] Such as Figure 1 to Figure 15 As shown, a subway station using rectangular pipe jacking combined with section shield construction, including the upper station and the lower station, some stations are assembled from multi-ring prefabricated components, and the adjacent prefabricated components of the same floor station have wedge-shaped grooves or wedge The wedge-shaped protrusion matched with the groove has a hand hole in the wedge-shaped groove or at the wedge-shaped protrusion, and the prefabricated components are connected through the hand hole through the bolt in the longitudinal direction.

[0066] The station includes the lower station and the upper station. The middle area of ​​the lower station is connected with the upper station. There are platforms on the left and right sides of the lower station. The upper station is equipped with ground stairs connecting the upper and lower floors. The lower station is equipped with two escalators. The number of prefabricat...

Embodiment 2

[0079] A construction method for the installation of prefabricated segments in a subway station, the specific steps are as follows: see Figure 16(a)-Figure 16(d) , Figure 17 with Figure 18 as shown,

[0080] Step 1: If figure 1 As shown, before the construction of the subway station, the shield machine on the left line is carrying out the circular shield tunnel construction in the left end area of ​​the lower station, and after continuously jacking the 5-ring prefabricated components, the axis is calibrated and the surrounding soil is reinforced by grouting; the right line The shield machine is used to carry out the construction of the circular shield tunnel at the right end of the lower station, and after every 5 rings of prefabricated components are continuously advanced, the axis is calibrated and the surrounding soil is reinforced by grouting;

[0081] Step 2: First, measure and determine the plane of the underground station to determine the planned location of the ...

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Abstract

The invention discloses a subway station constructed by adopting rectangular jacking pipes combined with interval shields and a construction method. According to the subway station, the construction of an end well portion or a curve end well does not need to be directly conducted, the construction of a shield tunnel is directly conducted, then according to time nodes and station demands, the other portions of a main body structure are constructed, and construction cost is greatly saved; according to the scheme, by adjusting the relative positions of the shield tunnel and a rectangular jacking pipe structure, the diversity and flexibility of a station type are achieved; the subway station structure is constructed mainly through jacking and pushing of the rectangular jacking pipes, foundation trench excavation maintenance construction does not need to be adopted, resources are saved, and waste is reduced; according to the scheme, prefabricated components are adopted, construction quality is good, the prefabrication and industrialization of the construction of the subway station are achieved, and the factorization and standardization of subway engineering are promoted; and the subway station construction method provided by the invention mainly adopts the combination of the rectangular jacking pipes and the shield tunnel, and a station section is flexibly arranged.

Description

technical field [0001] The invention relates to underground engineering, in particular to a subway station and a construction method using rectangular pipe jacking combined with section shield construction. Background technique [0002] When constructing a subway station in an underground project, it is necessary to construct the end well part of the main structure in advance, and then carry out the construction of the shield tunnel to form the subway station; but this method of construction often has the following problems: [0003] 1. The end shaft must be constructed first, otherwise the starting / accepting conditions cannot be formed, and then the shield tunnel is difficult to pass. [0004] 2. The subway station has a single form, basically a rectangular frame structure system. [0005] 3. Before the construction of the main structure, it is necessary to construct the enclosure structure (not as the main structure), resulting in waste of resources. [0006] In order to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/00E21D9/08E21D9/14
CPCE21D9/00E21D9/08E21D9/14
Inventor 王国富路林海李强王德超
Owner JINAN RAILWAY TRANSPORT GRP CO LTD
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