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

Retaining the construction technology of welded waterstop flange in the middle of the crd

A technology of water-stop flange and construction technology, which is applied in the direction of shaft equipment, shaft lining, mining equipment, etc., and can solve problems such as complex procedures, large ground and pipeline settlement, etc., to speed up construction progress, ensure construction safety, and waterproof construction quality Guaranteed effect

Inactive Publication Date: 2016-11-02
CHINA RAILWAY 18TH BUREAU GRP CO LTD +2
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the second lining is constructed to remove the temporary middle partition, the process is complicated, and it is easy to cause large ground and pipeline settlement

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
  • Retaining the construction technology of welded waterstop flange in the middle of the crd
  • Retaining the construction technology of welded waterstop flange in the middle of the crd

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] During the construction of the second lining, the I-beam on the middle partition of the underground excavation tunnel is temporarily reserved, and the water-stop flange is welded within the range of the second lining on the top and bottom of the I-steel, and the waterproof board is laid along the "L" shape of the middle partition, and metal steel hoops and water-resistant Expansive water-stop glue strengthens the construction process of waterproofing.

[0020] The welded water-stop flange within the second lining range of the I-beam top and bottom of the temporary middle partition is that the temporary middle partition within the second lining range is welded with a 5mm steel plate as the water-stop flange, and the size of the water-stop flange steel plate is 420×300mm, divided into two parts. A piece of steel plate is processed and butted, and then welded tightly with the I-beam. After the welding of the water-stop flange is completed, apply 2cm wide and 1cm thick wate...

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 construction technology of adding welding water-stop flanges to the next door in the underground excavation "CRD" belongs to the field of subway construction. During the construction of the second lining, the I-beam on the middle and next wall of the underground excavation tunnel is temporarily reserved, and the water-stop flange is welded within the range of the second lining on the top and bottom of the I-beam, and the top of the I-beam on the middle and next wall is welded with a water-stop flange, and the water-stop flange is divided into two parts. The steel plate is processed and butt-jointed, and then welded tightly with the I-beam; after the welding is completed, the upper part of the water-stop flange is coated with water-swelling water-stop glue, and the water-stop glue is applied around the I-beam next to the temporary middle wall for a week; the waterproof plate is " The L" shape is laid upward along the bottom of the I-beam of the temporary middle wall, and the waterproof board and the I-beam of the middle wall are firmly pasted with adhesive tape; the corner between the bottom of the I-beam of the temporary middle wall and the "L"-shaped waterproof board is filled There is waterproof mortar, and the waterproof board and waterproof mortar are pasted with adhesive tape; the upper and outer sides of the waterproof board are tightened with metal hoops. The invention improves the integrality of the waterproof board, makes the waterproof effect better, speeds up the construction progress, and reduces the construction cost.

Description

technical field [0001] The invention relates to a construction technique for water-proof treatment of a temporary intermediate partition in the construction of a "CRD" large section. Background technique [0002] With the continuous improvement of subway construction technology, the underground engineering field has continued to innovate, and many construction methods for shallow burial and underground excavation have been proposed. Among them, the CRD construction method of "dividing the whole into parts" is a very representative construction method, also known as "cross-middle". Next door method". This method takes the pre-reinforcement (treatment) of the ground as the premise, and is based on the anchor and net spraying support. The settlement and convergence of the vault of the supporting structure ensure the safety of the excavated chamber and the ground buildings. Compared with the open-cut method and the cover-build method, the biggest advantage of the shallow-burie...

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): E21D11/38E21D11/00
Inventor 黄广锴姜华龙雷崇红营升黄良冰
Owner CHINA RAILWAY 18TH BUREAU GRP CO 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