Secondary lining integral formworking construction method for tunnel with super-large cross section

A super-large section, secondary lining technology, applied in the direction of tunnel lining, tunnel, shaft lining, etc., can solve the problems of safe and fast construction of difficult projects, and achieve the effect of saving project cost, reducing investment and good quality

Inactive Publication Date: 2017-05-24
CHINA CONSTR EIGHTH ENG DIV
View PDF6 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the rail transit tunnel project, the station tunnel excavation space has a maximum height of nearly 32m, a span of nearly 24m, and a total excavation area of ​​nearly 760m 2 , and the th

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
  • Secondary lining integral formworking construction method for tunnel with super-large cross section

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0077] Below in conjunction with the accompanying drawings, the construction method of the secondary lining of the super large section tunnel of the present invention will be described in detail below.

[0078] As shown in the accompanying drawings, the super-large section tunnel secondary lining integral molding construction method of the present invention includes:

[0079] Main line: trolley design and production → track laying → assembly and commissioning → front and rear adjustment and locking of the trolley → vertical plug mold → adjustment of the center line elevation of the formwork → concrete pouring → maintenance → formwork removal → construction of the next mold;

[0080] In the main line: measuring and setting out → laying waterproof board → making and installing steel bars → checking and accepting steel bars → vertical plugging mold;

[0081] In the main line: selection of concrete raw materials→optimization of concrete mix ratio→site inspection of mix ratio→concr...

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 belongs to the technical field of construction engineering and provides a secondary lining integral formworking construction method for a tunnel with a super-large cross section. The method includes a main line which includes bogie designing and manufacturing, track laying, assembling and adjusting, bogie front and back position adjusting and locking, plug formwork erecting, formwork center line elevation adjusting, concrete pouring, curing, formwork removing and next formwork constructing; in the main line, surveying and setting out, waterproof board laying, rebar manufacturing and mounting, rebar checking and accepting and plug formwork erecting are performed; in the main line, concrete raw material selecting, concrete mix proportion optimizing, mix proportion onsite checking, concrete agitating and concrete pouring are performed; in the main line, formwork bogie locking device checking and concrete pouring are performed; in the main line, curing and roughened joint treating are performed. By integration of specially-made assembly frame and large formwork, the integral formwork bogie is formed, and one-time pouring forming of secondary lining concrete is guaranteed.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a construction method for integral mold construction of the secondary lining of super-large-section tunnels. Background technique [0002] In recent years, with the increase of urban traffic pressure, major cities have started to build rail transit projects. The section of the underground excavation station tunnel in the city is large, the section changes a lot, and the construction is difficult. In the rail transit tunnel project, the station tunnel excavation space has a maximum height of nearly 32m, a span of nearly 24m, and a total excavation area of ​​nearly 760m 2 , and the thickness of the rock layer at the shallowest part is only 9m, and the secondary lining is a reinforced concrete structure, which makes it difficult to ensure safe and rapid construction of the project. Contents of the invention [0003] The technical task of the present invention is...

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): E21D11/10E21D11/38
CPCE21D11/10E21D11/102E21D11/38
Inventor 廖鲜明
Owner CHINA CONSTR EIGHTH ENG DIV
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