Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Lifting construction method for the underground excavation section of transfer nodes in existing subway stations

A technology with existing subway and construction methods, applied in the direction of earthwork drilling, underground chambers, instruments, etc., can solve problems such as subway station subsidence, achieve the effect of increasing construction progress, speeding up construction progress, and saving cost investment

Active Publication Date: 2020-11-20
ERCHU CO LTD OF CHINA RAILWAY TUNNEL GRP
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the above technical solution has the problem of subsidence of the existing subway station at the transfer node during construction.

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
  • Lifting construction method for the underground excavation section of transfer nodes in existing subway stations
  • Lifting construction method for the underground excavation section of transfer nodes in existing subway stations

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] like Figure 1 to Figure 2 As shown, this embodiment takes the construction of a certain subway station as an example to describe in detail.

[0051] In this embodiment, the newly-built subway station is an island-style station with three floors and double columns underground. The main structure of the station is a three-story, three-span rectangular frame structure, which is constructed by the open-cut construction method. It forms a cross transfer station with the existing line station. The station of the existing line is a two-story underground station, and the base plate of the negative second floor of the existing line at the transfer node is the middle plate of the negative second floor of the new line, and the transfer node is constructed by the underground excavation method. During the construction of existing line stations, two rows of 800mm-thick underground diaphragm walls were set up under the bottom plate at the position of the transfer node for the undergr...

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 discloses an existing metro station interchange joint underground excavation section lifting construction method. The method comprises the following steps that 1, a ground connecting wall is excavated and exploded from the two sides of an existing line main body structure; 2, excavating is carried out to the interchange joint underground excavation section below the existing line main body structure; a newly-built main body structure is made, a negative one layer side wall and a top plate of the newly-built main body structure are connected with a negative one layer side wall anda top plate of the existing line main body structure, and a negative second layer side wall and a middle plate of the newly-built main body structure are connected with a negative second layer side wall and a middle plate of the existing line main body structure, so that a lifting system is formed; 4, water falling and grouting reinforcement is carried out on the interchange joint underground excavation section; 5, the reinforced interchange joint underground excavation section is excavated, and underground excavation main body structure construction is carried out; and 6, the remaining ground connecting wall is exploded, and post-cast strips are poured. Stress on the connecting portion of the existing line main body structure and the newly-built main body structure is monitored. The method reduces the risk of sediment of the existing structure in the excavation process.

Description

technical field [0001] The invention relates to the technical field of underground excavation construction, in particular to a lifting construction method for an existing subway station transfer node underground excavation section. Background technique [0002] With the development of the national economy, the number of urban subway constructions is increasing day by day. With the increase of line interchange planning, the number of transfer stations is also increasing. In China, there are two methods for the reservation of transfer nodes: the first method, the station under construction in the early stage only reserves the excavation conditions for the negative third floor of the transfer node in the later stage, and only prepares the enclosure structure for the later station construction (ground connection wall) and the supporting column in the middle, so that the position of the transfer node in the later station construction is in the closed box state of the surrounding ...

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): E21D9/00E21D9/14E21D11/10E21F16/02G01D21/02
CPCE21D9/00E21D9/14E21D11/003E21D11/105E21F16/02G01D21/02
Inventor 黄学军杨建礼黄章君李悦张扬冯飞董武斌宋康年刘建威刘建平霍智坤谭建兵崔现慧彭兴宇刘智华林兵王伟郭朝飞宋俊李豪杰
Owner ERCHU CO LTD OF CHINA RAILWAY TUNNEL GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com