Cover plate for drainage ditch in tunnel and preparation method for cover plate
A technology in drainage ditches and tunnels, which is applied in drainage, mining equipment, earthwork drilling and mining, etc. It can solve the problems of large amount of concrete application and heavy weight, and achieve lighter weight, lower air negative pressure, and reduced usage Effect
Active Publication Date: 2017-04-19
CHINA RAILWAY ENG CONSULTING GRP CO LTD
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The embodiment of the present invention provides a cover plate of a drainage ditch in a tunnel and a method for preparing the cover plate, which can solve the problems of large amount of concrete application and heavy weight
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
[0030] The technical solutions of the various embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work are within the protection scope of the present invention.
[0031] Considering the problems of the thick cover plate of the drainage ditch in the existing tunnel, the large amount of concrete used, the heavy weight, and the high transportation pressure, this embodiment provides a cover plate of the drainage ditch in the tunnel and a preparation method for the cover plate.
[0032] This embodiment provides a cover plate for covering the drainage ditch in the tunnel, the thickness of which is 2-3 centimeters, and more than one air hole is provided throu...
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
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to the technical field of cover plates, in particular to a cover plate of a drainage ditch in a tunnel and a manufacturing method of the cover plate. The thickness of the cover plate is 2-3 cm, and one or more ventilation holes penetrating through the upper surface and the lower surface of the cover plate are formed. The cover plate of the drainage ditch in the tunnel is obtained through material preparing, stirring, vibrating forming, initial maintaining and final maintaining. The thickness of the cover plate is reduced to 2-3 cm from 6 cm in the prior art and becomes smaller, the use amount of concrete is obviously reduced, and the overall weight becomes lower. However, a high-speed train generates air negative pressure when running in the tunnel, the cover plate with the lowered weight is likely to be sucked away, so that the ventilation holes penetrating through the upper surface and the lower surface of the cover plate are formed in the cover plate for the situation, the air inside and outside the drainage ditch can be communicated, and the air negative pressure is effectively reduced.
Description
technical field [0001] The invention relates to the technical field of cover plates, in particular to a cover plate for a drainage ditch in a tunnel and a preparation method for the cover plate. Background technique [0002] At present, the cover plate of the drainage ditch in the tunnel is generally made of 6cm thick C35 reinforced concrete. With the development and promotion of high-performance concrete materials such as reactive powder concrete (RPC), the thickness and weight of many structural components have been reduced. 2.5cm thick reactive powder concrete (RPC) was used. Because the air negative pressure generated when the train is running in the tunnel has a suction effect on the cover plate, when the cover plate is thinner and lighter in weight, the cover plate is easy to be sucked out. Therefore, the tunnel inner cover plate is still made of 6cm thick C35 reinforced concrete . [0003] At present, the drainage ditch cover in the tunnel is made of 6cm thick C35 ...
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 Patents(China)
IPC IPC(8): E21F16/02B28B1/52C04B28/04
CPCB28B1/045B28B1/523C04B28/04E21F16/02C04B14/06C04B14/48C04B18/12C04B18/14
Inventor 马福东刘建友蒋小锐陈学峰吕刚谭富圣陈五二王杨于鹤然彭斌
Owner CHINA RAILWAY ENG CONSULTING GRP CO LTD