A device and method for accurate positioning of secondary lining steel bars in a tunnel
A precise positioning and reinforcement technology, applied in tunnel lining, tunnel, shaft equipment and other directions, can solve the problems of the inability to accurately locate the circumferential reinforcement and the difficulty in ensuring the quality of the installation of the secondary lining reinforcement. Positioning efficiency, positioning effect is obvious
Active Publication Date: 2020-06-16
CHINA FIRST METALLURGICAL GROUP
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the prior art, the binding of secondary lining steel bars is mainly done manually, using the elasticity of the steel bar itself to bend the steel bar into a ring, but the circular arc-shaped circular steel bar completed manually cannot be accurately positioned, especially the secondary lining section is a curved section It is even more difficult to guarantee the installation quality of the secondary lining reinforcement, which is common in the existing technology and has become a common problem and hidden danger in the quality of tunnel engineering.
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
[0028] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:
[0029] As shown in the figure, the precise positioning device for the second lining steel bar of the tunnel includes a telescopic telescopic structure arranged on the waterproof board paving trolley 1. There are multiple telescopic structures arranged along the circumferential direction of the tunnel section, and the telescopic structure is provided with a fine-tuning Structure, the fine-tuning structure is composed of several screw rods 6 arranged side by side along the tunnel direction, and the screw rods can move axially along themselves.
[0030] Wherein, the telescopic structure includes at least two telescopic rods 2, the telescopic rods 2 are socketed by the ring 5 arranged on the waterproof board hanging trolley 1, and the waterproof board hanging trolley 1 is also provided with a ring for restricting the movement of the telescopic r...
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 discloses a tunnel secondary lining reinforcing steel bar accurate positioning device. The tunnel secondary lining reinforcing steel bar accurate positioning device comprises multiple retractable structures which are arranged on a waterproof plate laying and suspending trolley, the retractable structures are arranged in the circumference direction of the cross section of a tunnel, afine adjusting structure is arranged on each retractable structure and is constituted by several screws which are arranged side by side in the direction of the tunnel, and the screws can move along the axis of themselves. Through the retractable structures and the fine adjusting structures, the position of secondary lining reinforcing steel bars can be precisely adjusted, and the tunnel secondarylining reinforcing steel bar accurate positioning device is applicable to straight tunnels and curved tunnels, particularly the curved tunnels. By means of the tunnel secondary lining reinforcing steel bar accurate positioning device, the spacing of the secondary lining reinforcing steel bars and the thickness of protective layers can be effectively controlled, and the construction quality is guaranteed.
Description
technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a device and method for precisely positioning steel bars in the second lining of a tunnel. Background technique [0002] In the tunnel construction process, the precise positioning of the secondary lining reinforcement binding is a major problem that restricts the construction quality of the secondary lining. In the prior art, the binding of secondary lining steel bars is mainly done manually, using the elasticity of the steel bars themselves to bend the steel bars into rings, but the circular arc-shaped circular steel bars completed manually cannot be accurately positioned, especially when the secondary lining section is a curved section. At the same time, it is even more difficult to guarantee the installation quality of the secondary lining steel bars. This phenomenon is common in the prior art and has become a common problem and hidden danger in the quality of tun...
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): E21D11/10
CPCE21D11/107
Inventor 陈远孙卿辉厚兴平
Owner CHINA FIRST METALLURGICAL GROUP