Fabricated tunnel lining structure
A prefabricated, tunnel technology, applied in tunnel lining, tunnel, shaft lining, etc., to save materials, avoid diseases, and ensure driving safety.
Pending Publication Date: 2020-07-28
CHINA RAILWAY ERYUAN ENG GRP CO LTD
View PDF0 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The technical problem to be solved by the present invention is to provide a prefabricated tunnel lining structure, which can effectively ensure the quality of the arch lining while improving the industrialization degree and construction efficiency of the mining method tunnel construction, and overcome the lining problems caused by the difficulty of on-site pouring control. The quality defect of the arch part ensures the safety of the tunnel operation and reduces the investment in the renovation during the operation period
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0019] refer to figure 1 , a prefabricated tunnel lining structure of the present invention, comprising a primary support structure 10, a waterproof and drainage system 20 and a secondary lining structure arranged from the inside to the outside, the secondary lining structure includes an inverted arch 31, a side wall secondary lining 30 And arch secondary lining 32. The two ends of the inverted arch 31 are consolidated with the bottom end of the secondary lining 30 of the side wall, and are continuously poured in sections along the extension direction of the tunnel, that is, the inverted arch 31 and the secondary lining 30 of the side wall are cast on site. The secondary lining 32 of the arch is a prefabricated structure, which is longitudinally assembled from reinforced concrete prefabricated block units, and its circumferential ends and the secondary...
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
Login to View More Abstract
The invention provides a fabricated tunnel lining structure. The structure aims to effectively guarantee the quality of an arch lining while the industrialization degree and construction efficiency ofmine tunnel construction are improved, quality defects of the arch portion of the lining due to difficult site pouring control are overcome, the safety of tunnel operation is ensured, and the investment for regulation in the operation period is reduced. The fabricated tunnel lining structure comprises an initial support structure, an anti-drainage system and a secondary lining structure which arearranged from inside to outside. The secondary lining structure comprises an inverted arch, side wall secondary linings and an arch portion secondary lining. The two ends of the inverted arch are fixedly connected with the bottom ends of the side wall secondary linings, and are formed in the extending direction of a tunnel through segmented continuous pouring. The arch portion secondary lining isof a prefabricated structure and is formed by longitudinally splicing reinforced concrete prefabricated building block units. The two annular ends of the arch portion secondary lining and the side wall secondary linings are in lap joint through connecting structures, or fixedly connected through connecting components and post-cast joints.
Description
technical field [0001] The invention relates to a tunnel lining structure, in particular to an assembled tunnel lining structure in which prefabricated components are used for the arch. Background technique [0002] In recent years, my country's railway construction has developed rapidly, especially the construction of high-speed railways has entered a stage of explosive growth. With the rapid growth of railway operating mileage and the increase of tunnel-to-line ratio brought about by the improvement of line standards, the number and scale of railway tunnels also show a trend of rapid growth, especially in the southwestern mountainous area, where tunnels play an important role in railway infrastructure projects. The proportion is extremely high. [0003] At present, in the construction process of mining tunnels, due to various technological quality and other factors, there are primary support or voids behind the lining in some sections, insufficient thickness of the second...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/08E21D11/38E21D11/10
CPCE21D11/08E21D11/083E21D11/38E21D11/10
Inventor 熊国兴卿伟宸杨昌宇王嵩谢运来张慧玲宁远思旷文涛杨宝曹林卫王聚山杨光华陈磊
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD