Method for constructing subway station by enlarging and digging shield tunnel by adopting mining method

A technology for shield tunnels and subway stations, applied in tunnels, tunnel linings, mining equipment, etc., can solve the problems of short excavation distance, high mechanical costs, and low excavation efficiency of special shield tunnels, so as to save the construction period of the mining method and save the construction period , Vault settlement and small convergence effect

Inactive Publication Date: 2012-01-18
GUANGZHOU RAIL TRANSIT CONSTR SUPERVISION CO LTD
View PDF4 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1) Large-diameter shield machines worth hundreds of millions of dollars must be specially customized;
[0006] 2) The excavation distance of special shield machine is short and the cost of machinery is high
[0007] 3) If a large-diameter shield is used to construct the station and the section tunnel

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for constructing subway station by enlarging and digging shield tunnel by adopting mining method
  • Method for constructing subway station by enlarging and digging shield tunnel by adopting mining method
  • Method for constructing subway station by enlarging and digging shield tunnel by adopting mining method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Such as figure 1 As shown, the method of adopting the mining method to expand and excavate the shield tunnel to build the subway station according to the present invention is realized through the following steps:

[0033] The first step is to use the shield machine to excavate the platform layer tunnel 1 of the station;

[0034] A shield machine with a standard 6-meter segment outer diameter is used to excavate through the station platform layer tunnel. During excavation, the excavation axis must be strictly controlled to ensure that the deviation is less than ±50mm, and the shield tail grouting must be timely and sufficient.

[0035] The second step is to excavate the vertical shaft 2 at one end of the station to the elevation of the tunnel at the platform level of the station;

[0036] The third step is to construct the pipe shed along the ring direction of the tunnel vault, and use the large pipe shed to support the hole layout and grouting in advance;

[0037] Suc...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Wall thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for constructing a subway station by enlarging and digging a shield tunnel by adopting a mining method. The method comprises the following steps of: (1) firstly advancing a platform layer tunnel passing through a station by adopting a shield machine; (2) excavating a vertical well to elevation of the platform layer tunnel of the station at one end of the station; (3) constructing along with a tunnel vault and manufacturing a pipe shed, perforating by adopting a large pipe shed advance support and grouting; (4) constructing along with the tunnel vault and manufacturing a sleeve valve pipe, and grouting for complementing and reinforcing; (5) enlarging and digging in the platform layer tunnel by adopting the mining method; (6) dismounting and recovering pipe pieces; and (7) constructing and manufacturing a concrete structure comprising a secondary lining, a platform plate and a rail head wind channel. In the invention, the shield machine participates in construction of the subway station, a cave is firstly excavated, then an underground station is enlarged, excavated and constructed by adopting the mining method, respective advantages of the shield machine and the mining method are fully played, and waste of equipment and underground space resource caused by a special large-diameter shield machine is avoided.

Description

technical field [0001] The invention relates to the technical field of underground construction engineering, in particular to an engineering method for constructing a subway station by adopting a mining method to expand and excavate a shield tunnel. Background technique [0002] At present, the existing domestic subway stations are mainly constructed by the open-cut method and the mining method, and there are cases in foreign countries where special shield structures are used to construct subway stations. in: [0003] The open and cut construction method requires a large area of ​​construction site, and often encounters a series of bottleneck problems such as land acquisition and demolition, greening and relocation of municipal pipelines, traffic deconstruction and environmental pollution, resulting in delays in the construction period. The mining method has many construction steps, slow excavation speed, long construction period, many safety risks and hidden dangers, and h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E01F1/00E21D9/00E21D11/04
Inventor 廖鸿雁竺维彬黄威然王晖米晋生钟长平张志良林志元孔少波孙成伟陈乔松林朝贾延霖
Owner GUANGZHOU RAIL TRANSIT CONSTR SUPERVISION CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap