Self-resetting prestressed duct piece structure and assembling method thereof
A prestressed pipe and assembly method technology, which is applied to shaft equipment, bolt installation, earthwork drilling, etc., can solve problems such as tension deformation at joints of segments, poor seismic toughness of shield tunnel structures, etc.
Active Publication Date: 2021-07-06
SHENZHEN UNIV
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a self-resetting prestressed segment structure and its assembly method in view of the above-mentioned defects of the prior art, aiming at solving the Segment joints are prone to tensile deformation, resulting in poor seismic toughness of the shield tunnel structure
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] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0029] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.
[0030] The prefabricated concrete segment used as the tunnel lining is the main supporting structure of the tunnel, and its quality directly affects the stability and waterproof performance of the entire subway tunnel...
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 self-resetting prestressed duct piece structure and an assembling method thereof. The self-resetting prestressed duct piece structure comprises a self-resetting prestressed duct piece, a plurality of first reserved pipelines, a plurality of second reserved pipelines and a prestressed connecting assemblies, wherein the multiple first reserved pipelines and the multiple second reserved pipelines are all arranged in the self-resetting prestressed duct piece, the prestress connecting assemblies penetrate through the multiple first reserved pipelines and the multiple second reserved pipelines in the self-resetting prestress duct piece assembling process, and anchoring and prestress tensioning are conducted through prestress anchoring assemblies and prestress tensioning assemblies. The self-resetting prestressed duct piece structure is simple, easy to manufacture and convenient to use, anchoring and prestress tensioning are conducted on the prestress connecting assemblies inserted in the first reserved pipelines and the second reserved pipelines in a penetrating mode, prestress is generated before the prestress duct piece structure is subjected to the external force load effect, and tensioning deformation at the joints of the duct piece can be counteracted under the earthquake or the huge external force effect, and the inter-ring toughness of a shield tunnel structure is improved.
Description
technical field [0001] The invention relates to the technical field of urban subway shield tunnels, in particular to a self-resetting prestressed segment structure and an assembly method thereof. Background technique [0002] With the continuous development of urban subway tunnel construction, more and more cities have opened urban subway lines. The shield method is currently a more advanced construction method for subway tunnels. The precast concrete segment used as the tunnel lining is the main support of the tunnel. The quality of the structure directly affects the stability and waterproof performance of the entire subway tunnel. Under the action of earthquake or huge external force, the existing shield segments are prone to tensile deformation at the segment joints, resulting in poor seismic toughness of the shield tunnel structure. [0003] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0004] The technical problem to ...
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): E21D11/08E21D11/40E21D21/00
CPCE21D11/08E21D11/40E21D21/008
Inventor 沈俊包小华杨小荣罗磊崔宏志陈湘生
Owner SHENZHEN UNIV