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

Cover-excavation top-down underground passage structure and construction method thereof

An underground passage, cover and dig reverse work technology, applied in the field of construction engineering, can solve the problems of long construction period, narrow work space, high construction cost, reduce construction cost and construction period, simple construction process, and solve the effect of narrow work space

Active Publication Date: 2020-10-09
CHINA CONSTR SECOND ENG BUREAU LTD
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a cover-excavation reverse underground passage structure and its construction method to solve the technical problems of traditional cover-excavation construction with narrow working space, long construction period and high construction cost

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
  • Cover-excavation top-down underground passage structure and construction method thereof
  • Cover-excavation top-down underground passage structure and construction method thereof
  • Cover-excavation top-down underground passage structure and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] In this embodiment, the pile foundation construction is carried out first in the cover-excavation and reverse work area. After the pile foundation construction is completed, the wall laitance is removed, the debris at the pile head is cleaned, and the crown beam 7 and the hanging wall reinforcement 9 are tied. The part beyond the bottom surface of the crown beam 7 is connected with the top horizontal steel bar 11, and then the formwork is supported and the concrete for the roof 3 and the hanging wall 2 is poured. After the concrete strength reaches 100%, it can be backfilled and handed over to the area above the underground passage for anti-terrorism warning The building is under construction outdoors.

[0041] After the earthwork backfilling in the cover-excavation area is completed, the excavation of the lower layer of earthwork needs to wait for the open excavation area 14 on both sides to be excavated to the bottom of the pit, and then the excavator will excavate fro...

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 a cover-excavation top-down underground passage structure and a construction method thereof. The cover-excavation top-down underground passage structure comprises first supportpiles, hanging walls, a top plate, first side walls and a first bottom plate, the first support piles are arranged at intervals along the outer side lines of two sides of a passage, a top beam is arranged at the tops of each group of first support piles, the two hanging walls are arranged on the left side and the right side of the top plate correspondingly, the top plate is hung at a designed position through the two hanging walls, the upper ends of the hanging walls are fixedly connected with the top beams, the two first side walls are arranged at the bottoms of the two hanging walls correspondingly, the first bottom plate is arranged between the bottoms of the two first side walls, filling layers fill the portions between the first side walls and the first support piles on the corresponding sides and between the hanging walls and the first support piles on the corresponding sides, open excavation underground passage structures are constructed on the two sides of the cover-excavationtop-down underground passage structure correspondingly, the open excavation underground passage structures comprise second support piles, second side walls and second bottom plates. According to thecover-excavation top-down underground passage structure and the construction method thereof, the technical problems of narrow operation space, long construction period and high construction cost of traditional cover-excavation construction are solved.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, in particular to a cover-dig reverse underground passage structure and a construction method thereof. Background technique [0002] The west side of the underground emergency passage of a certain project is connected with the residential building, passes through the outdoor underground space of the anti-terrorism warning building, and the east side is equipped with an entrance and exit to connect with the bus inspection site; the cover-excavation area is located in the outdoor area of ​​the anti-terrorism warning building. Since the handover date of the anti-terrorist alert building is earlier than the construction of the underground emergency passage structure, in order to ensure the smooth handover of the anti-terrorist alert building and provide operating conditions for the construction of the outdoor floor of the anti-terrorist alert building, the underground emergency passage...

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 Applications(China)
IPC IPC(8): E02D29/055
CPCE02D29/055
Inventor 邓杰豪黄俊陈之赖宋英张鹏张洪庆桓忠雄郭淯晟马凯程瑶王磊郭斌
Owner CHINA CONSTR SECOND ENG BUREAU LTD
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