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

Duct piece whole ring structure and duct piece whole ring prefabricating method

A segment, together technology, which is applied in the field of segment whole ring structure and segment whole ring prefabrication, can solve the problems of unsuitability for application and error, and achieve the effect of improving overall strength, ensuring position accuracy, and ensuring molding accuracy.

Active Publication Date: 2021-09-03
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a method for the prefabrication of the whole ring of segments to solve the technical problem in the prior art that the way of block prefabrication and then overall assembly is not suitable for application in the full-scale test due to error problems; at the same time, the present invention also provides Provide a segmental integral ring structure that can be processed by the above segmental integral ring prefabrication method

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
  • Duct piece whole ring structure and duct piece whole ring prefabricating method
  • Duct piece whole ring structure and duct piece whole ring prefabricating method
  • Duct piece whole ring structure and duct piece whole ring prefabricating method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0066] The prefabrication method generally includes the following steps:

[0067] Step 1, assemble the prefabricated mold

[0068] as per Figure 4 The prefabricated mold is assembled with the preset segment ring contour line 200 shown, and the pouring ring cavity is surrounded by the bottom formwork 2, the inner formwork 3, the outer formwork 4 and the top formwork 2-1 of the prefabricated mold, and the middle edge of the pouring ring cavity is preset The contour line 200 of the entire ring of the segment is arranged in sequence with a plurality of end plate groups, and each end plate group includes two end plates 11 that are detachably and fixedly assembled together, and any adjacent two end plate groups are relatively fixed through the middle steel skeleton Assemble together.

[0069] Of course, in order to realize the method of fastening and assembling by bolts, on the opposite sides of the two end plates 11 of the end plate group, corresponding to the fastening bolts 16...

specific Embodiment 2

[0090] It differs from the embodiment mainly in that: in embodiment 1, the section steel is specifically an I-beam. In this embodiment, the shaped steel can be an H-shaped steel. At this time, the web of the H-shaped steel can also be arranged horizontally, and a blanking hole is arranged on the web of the H-shaped steel for the passage of the concrete filler.

[0091] Of course, in other embodiments, other shaped steels, such as angle steels, can also be used.

specific Embodiment 3

[0093] The difference between it and the embodiment mainly lies in that in embodiment 1, after the inner formwork is installed, the end plate and the middle steel skeleton are installed first, and then the outer formwork is installed. In this embodiment, after the inner formwork is installed, the outer formwork can be installed first, and in the formed ring groove, it can be hoisted from top to bottom and placed into the end plate and the middle steel frame fixedly assembled together. Relatively inconvenient.

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 relates to a duct piece whole ring structure and a duct piece whole ring prefabricating method. The prefabricating method comprises the following steps that 1, a prefabricating die is assembled, specifically, the prefabricating die is assembled according to a preset duct piece whole ring contour line, a bottom die plate, an inner side die plate, an outer side die plate and a top die plate of the prefabricating die define a pouring ring cavity, a plurality of end plate sets are sequentially arranged in the pouring ring cavity, each end plate set comprises two end plates which are detachably and fixedly assembled together, and any two adjacent end plate sets are oppositely and fixedly assembled together through a middle steel framework; 2, concrete is poured into the pouring ring cavity; and 3, die removal and maintenance are conducted, specifically, the corresponding two end plates are separated at each end plate set, and then a plurality of prefabricated duct piece blocks can be obtained. The pouring ring cavity is formed through the prefabricating die, the end plate sets and the middle steel frameworks are arranged in the pouring ring cavity, retarding soil is poured into the pouring ring cavity, and then a whole ring duct piece is formed; and due to the fact that the whole ring pouring forming mode is adopted, the forming precision can be effectively guaranteed, and the duct piece whole ring structure and the duct piece whole ring prefabricating method are suitable for being applied to full-scale tests.

Description

technical field [0001] The invention relates to a segmental ring structure and a segmental ring prefabrication method. Background technique [0002] At present, for shield excavation of subway tunnels, it is necessary to use segment masonry to support the tunnel wall. Segment rings are usually assembled by segmented prefabricated segments, and the mold corresponding to each segment includes a bottom plate, an upper cover and four side plates. The production process mainly includes: [0003] 1) Clean the mold and remove the residue on the surface of the mold; [0004] 2) Assemble the template and spray the release agent; [0005] 3) Install the steel skeleton in the mold, and install the embedded parts at the same time; [0006] 4) Concrete pouring; [0007] 5) After pouring and initial setting, perform steam curing on the poured segments; [0008] 6) Perform demoulding treatment on the segment, and place the segment after demoulding in the pool for curing until it meet...

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): B28B23/02B28B1/04B28B1/093B28B7/00G01N1/28
CPCB28B23/02B28B1/045B28B1/093B28B7/0029B28B7/0014B28B7/0055G01N1/28Y02E10/72
Inventor 赵修旺贾连辉毕程程于少辉白中坤王宁李应飞赵澍李明芳
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP 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

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