Tunnel secondary lining arch crown concrete filling machine and construction method thereof

A construction method and concrete technology, which are applied in tunnel lining, tunnel, earth-moving drilling, etc., can solve the problems of secondary lining concrete structural defects, concrete fluidity loss, hidden danger of tunnel operation, etc., and achieve good practicability, economic benefits and Social benefits, improved production efficiency, and low input costs

Active Publication Date: 2016-08-03
ZHEJIANG COMM CONSTR GRP CO LTD
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of pouring process, due to the long pouring distance (about 10 meters from the other end of the delivery pipe), and the long pouring time before and after, will lead to the loss of fluidity of the concrete and the increase of the air pressure in the warehouse, and the concrete is not easy to reach. , resulting in a cavity
When the tunnel is excavated downhill, the concrete is pushed from the low to the high, which is more prone to such problems, resulting in defects in the secondary lining concrete structure, leaving a safety hazard for the tunnel operation

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
  • Tunnel secondary lining arch crown concrete filling machine and construction method thereof
  • Tunnel secondary lining arch crown concrete filling machine and construction method thereof
  • Tunnel secondary lining arch crown concrete filling machine and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as Figure 1-5 The concrete pouring machine for the second lining vault of the tunnel shown mainly includes a concrete pump 3, a concrete delivery pipe 8 and a pouring machine support 2. The concrete delivery pipe 8 is connected by multiple steel pipes and is connected to the concrete pump 3 through a delivery hose 13 connection. A pair of walking wheels are installed at the front and rear ends of the concrete delivery pipe 8, the front walking wheel 4 rides on the vault formwork, the rear walking wheel 6 is placed on the track of the pouring machine bracket 2; the pouring machine bracket 2 is attached to the lining trolley 1 , The support of the pouring machine is also provided with rollers 7 and a motor 11, starting the motor to rotate the rollers can make the concrete conveying pipe walk back and forth, the roller 7 and the rear travel wheel 6 are equipped with guide wheels 10 on both sides.

[0034] A brake 12 is provided in the middle of the concrete conveying p...

Embodiment 2

[0037] The concrete pouring construction method of the second lining and vault roof of the tunnel includes the following steps:

[0038] (1) Extend the concrete delivery pipe 8 of the concrete pouring machine for the second tunnel lining vault from the reserved hole of the end template to the top;

[0039] (2) When pouring concrete, the concrete delivery pipe 8 moves back and forth on the support 2 of the pouring machine and retreats with the progress of the pouring construction; remove part of the steel pipe of the concrete delivery pipe 8 exiting the end formwork and continue pouring concrete;

[0040] (3) When the last section of steel pipe of the concrete conveying pipe 8 is retracted outside the end formwork, install the head formwork with the concrete pump pipe stop valve 9 and connect the concrete conveying pipe 8 with the stop valve 9 to continue pouring concrete and constant pressure Close the concrete pump pipe shut-off valve after minutes.

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 tunnel secondary lining arch crown concrete filling machine which mainly comprises a concrete pump, a concrete conveying pipe and a bracket. The concrete conveying pipe is formed by connecting multiple sections of steel pipes and is connected with the concrete pump by virtue of a conveying hose; a pair of traveling wheels is respectively arranged at each of the front and rear ends of the concrete conveying pipe; the traveling wheels at the front end ride on an arch crown formwork; the traveling wheels at the rear end are arranged on a rail of the bracket; the bracket is attached to a lining trolley; a roller and a motor are arranged on the bracket; the concrete conveying pipe can move back and forth by starting the motor and rotating the roller; guide wheels are arranged on two sides of the roller and the traveling wheels at the rear end. By utilizing the concrete filling machine disclosed by the invention, concrete can be directly poured to a specified position and is uniformly and compactly distributed, the degree of mechanization is high, the labor intensity is low, and the production efficiency and the quality of a secondary lining arch crown concrete structure are improved. The invention also discloses a tunnel secondary lining arch crown concrete filling construction method.

Description

Technical field [0001] The invention belongs to the technical field of tunnel construction, and particularly relates to a concrete pouring machine and a construction method for the second lining and vault of a tunnel. The concrete pouring function of the invention is used to directly pour the concrete into the designated position, the concrete is evenly distributed and dense, the degree of mechanization is high, the labor intensity is low, and the production efficiency and the quality of the concrete structure of the second lining arch roof are improved. Background technique [0002] The construction method of the secondary lining of the tunnel generally uses a lining trolley and is equipped with a concrete pump for pouring. [0003] In the prior art, the commonly used method for pouring concrete into the second lining vault of the tunnel is to make holes on the vault template with a distance of about 3 meters. Insert the nozzle of the concrete pump delivery pipe directly from the...

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): E21D11/10
CPCE21D11/105
Inventor 王成标韩学明宋德洲高金康王方远
Owner ZHEJIANG COMM CONSTR GRP CO LTD
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