Segmented prefabrication method of immersed tube joints

A technology of pipe joints and immersed pipes, which is applied to manufacturing tools, artificial islands, underwater structures, etc., can solve the problems of high crack control difficulty, long prefabrication cycle, and large prefabricated factory area, so as to improve project quality and low cost. , the effect of shortening the construction period

Active Publication Date: 2020-11-17
CCCC FOURTH HARBOR ENG CO LTD
View PDF8 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of long prefabrication period, large prefabrication factory area, and high difficulty in crack co

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
  • Segmented prefabrication method of immersed tube joints
  • Segmented prefabrication method of immersed tube joints
  • Segmented prefabrication method of immersed tube joints

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0046] For example, the section of the immersed tunnel adopts the scheme of two holes and one pipe gallery, the main line of the standard road section adopts two-way 8 lanes, the total length of the tunnel is 2310m, and it is divided into 29 pipe sections (80m×28 sections+70m×1 section), and the width of the immersed pipe section is 42.8 m, height 10.9m, 1.5m thick pipe joint structure top and bottom plate, 1.4m thick side wall, 0.7m thick middle partition wall, 2m wide middle corridor, and 161.8m structural sectional area 2 , the length of a single pipe joint is 80m, which can be divided into 3 sections to be poured, and each section to be poured is about 26.7m long.

[0047] The segmental prefabrication method of an immersed tube section according to the present invention for a single pipe section includes the following steps:

[0048] a. Bind the bottom plate steel bars, outer wall steel bars and middle wall steel bars of the entire pipe joint in the steel bar binding area ...

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 the technical field of immersed tube tunnel construction, in particular to a segmented prefabrication method of immersed tube joints.The prefabrication period of a single tubejoint can be remarkably shortened, the prefabrication cost of a single joint cannot be increased greatly, a reinforcement cage or tube joints cannot be frequently jacked or cannot frequently ascend and descend in the prefabrication link, the waiting period that the tube joints reach the strength required by moving can be shortened, the number of times of moving is obviously reduced, the crack control difficulty can be reduced easily, the forming quality of immersed tubes is improved, and then the engineering quality is improved. Meanwhile, through the arrangement of a steel bar binding area and a pouring area and matching of the reciprocating moving positions of bed-jigs and a formwork in the method, the occupied area of the prefabrication area of a single tube joint is compact, multipleprefabrication assembly lines can be arranged in a width-limited site easily, arrangement of a prefabrication factory is facilitated, a hoisting system does not need to be erected in the moving process of the reinforcement cage, the bed-jigs and the formwork, safety is good, construction is convenient, and the construction period can be further shortened easily.

Description

technical field [0001] The invention relates to the technical field of immersed tube tunnel construction, in particular to a segmental prefabrication method for immersed tube joints. Background technique [0002] In the prior art, when a single pipe section of an immersed tube reaches a certain length (greater than or equal to 30m), it is necessary to pour the single pipe section in sections. With more and more super projects of immersed tunnels, the length of the pipe section , The size of the cross-section is also getting larger and larger. For example, the prefabrication project of the two-hole single-pipe corridor immersed pipe of the Hong Kong-Zhuhai-Macao Bridge is to push the bound and formed steel cage into the formwork through special equipment, and then close the mold and pour the concrete. After the concrete reaches the jacking strength, use the jacking equipment to push the immersed tube forward for one section, and then pour the concrete for the second section, ...

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): B28B23/02B28B7/18B28B7/00E02D29/073
CPCB28B7/0002B28B7/18B28B23/02B28B23/024E02D29/073E02D2250/0007E02D2250/0023
Inventor 梁杰忠王伟智马亿光明陈猛梁邦炎陈伟彬黄文慧旷明智王晓东戴双全黄跃龙龚志宏
Owner CCCC FOURTH HARBOR ENG 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