Unlock instant, AI-driven research and patent intelligence for your innovation.

A method for expanding shield construction of subway stations with curved pipe jacking support structure

A technology for supporting structures and subway stations, which is applied in underground chambers, earthwork drilling, wellbore lining, etc. It can solve the problems of large impact on building safety, high construction risk, and inconvenient excavation, and achieve short construction time , simple process and high construction efficiency

Inactive Publication Date: 2017-07-14
CHINA UNIV OF GEOSCIENCES (WUHAN)
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many construction joints in the cover-excavation slab wall and column, which need to be waterproofed, which is inconvenient to excavate, low in work efficiency, and slow in construction speed
The construction period of the underground excavation method is long, the subsidence of the ground has a great impact on the safety of adjacent buildings, the construction risk is high, and the project cost is also high

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
  • A method for expanding shield construction of subway stations with curved pipe jacking support structure
  • A method for expanding shield construction of subway stations with curved pipe jacking support structure
  • A method for expanding shield construction of subway stations with curved pipe jacking support structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The method for expanding the shield construction subway station of the curved pipe jacking support structure provided by the present invention, the construction principle is as follows figure 1 shown, including the following steps:

[0041] (1) Use the shield method to construct the underground space reserved for the subway station to form a shield tunnel. The shield tunnel is supported by the shield segments, which include the top segment 1, the upper shield segment 2, and the middle shield tube. sheet 3 and negative sheet 4, the left vertical temporary support 5 and the right vertical temporary support 6 are symmetrically installed in the shield tunnel, and the pipe jacking working platform 15 is installed on the upper part of the shield tunnel, such as image 3 shown;

[0042] (2) Install the pipe jacking equipment on the pipe jacking working platform 15, drill and cut symmetrically on both sides of the shield segment top piece 1 and install the orifice device as the ...

Embodiment 2

[0048] The method for expanding the shield construction subway station of the curved pipe jacking support structure provided by the present invention, the construction principle is as follows figure 1 shown, including the following steps:

[0049] (1) Use the shield method to construct the underground space reserved for the subway station to form a shield tunnel. The shield tunnel is supported by the shield segments, which include the top segment 1, the upper shield segment 2, and the middle shield tube. sheet 3 and negative sheet 4, the left vertical temporary support 5 and the right vertical temporary support 6 are symmetrically installed in the shield tunnel, and the pipe jacking working platform 15 is installed on the upper part of the shield tunnel, such as image 3 shown;

[0050] (2) Install the pipe jacking equipment on the pipe jacking working platform 15, drill and cut symmetrically on both sides of the shield segment top piece 1 and install the orifice device as th...

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

No PUM Login to View More

Abstract

The invention provides a method for expanding the shield construction of a subway station with a curved pipe jacking support structure. The curved pipe jacking technology is used to directly form the outer support structure of the subway station in one construction, which reduces the deformation of the soil during the construction process and contributes to the support. Concrete is injected into the pipeline; then the partition wall is constructed to prevent the partition wall from obstructing the construction of the outer support structure of the subway station; then the shield segments are removed and the secondary lining and auxiliary structures of the station are constructed; this method has the advantages of high construction efficiency and simple procedures It greatly reduces the impact of station excavation on the urban environment, improves the construction efficiency of shield tunneling subways, saves construction costs, and can adapt to the complex geological conditions of shallow burial in the city. The subway stations built using this method have high structural strength and safe and reliable support. .

Description

technical field [0001] The invention relates to a method for expanding a shield construction subway station, and belongs to the technical field of trenchless underground engineering. Background technique [0002] With the development of our country's economy and the improvement of urbanization level, the traffic problem has become a key problem restricting the development of cities and needs to be solved urgently. As an important part of the urban public transportation network, the shield tunneling subway plays a huge role in alleviating traffic congestion, increasing the speed of urban development, and improving the modernization level of the city. However, due to the short distance between shield tunneling intervals and the large number of stations, shield tunneling often has to wait for the station to be completed before transferring, resulting in excessive excavation time and low utilization of shield tunneling equipment, resulting in delays in the construction period an...

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
Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/06E21D11/10E21D11/38
Inventor 张鹏马保松曾聪孔耀祖
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)