Unlock instant, AI-driven research and patent intelligence for your innovation.

Floor-heave-resisting prefabricated assembly type tunnel inverted arch structure, assembly type inverted tunnel and method

A prefabricated assembly and arch structure technology, applied in tunnels, tunnel linings, shaft equipment, etc., can solve problems affecting the normal operation of high-speed railways, cracking and deformation of ballast beds, speed limit of tunnels, etc. Reliable quality and guaranteed effect

Pending Publication Date: 2020-05-15
SHANDONG UNIV
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the relevant statistics of the railway tunnels currently in operation, especially the high-speed railway tunnels, some tunnels have problems such as inverted arches and bottom drums, mud and mud, which in severe cases lead to cracking and deformation of the ballast bed, resulting in the speed limit of the tunnel and affecting the normal operation of the high-speed railway.

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
  • Floor-heave-resisting prefabricated assembly type tunnel inverted arch structure, assembly type inverted tunnel and method
  • Floor-heave-resisting prefabricated assembly type tunnel inverted arch structure, assembly type inverted tunnel and method
  • Floor-heave-resisting prefabricated assembly type tunnel inverted arch structure, assembly type inverted tunnel and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Attached below Figure 1-Figure 5 The present invention is described in detail, specifically, the structure is as follows:

[0044] This embodiment provides a prefabricated assembled tunnel invert structure that is resistant to floor drums, including a first invert block 14, a second invert block 13, and a rhombus grid 6, wherein the first invert block 14 It is installed symmetrically with the second inverted arch sub-block 13, and the rhombus grid 6 is connected between the first inverted arch sub-block 14 and the second inverted arch sub-block 13. After the installation of the first inverted arch sub-block 14 and the second inverted arch sub-block 13 is completed, a horizontal section of inverted arch structural unit is formed by pouring concrete, and multiple sections of inverted arch structural units are spliced ​​vertically in sequence to form an integrally assembled inverted arch structure.

[0045] The first inverted arch block 14 and the second inverted arch bl...

Embodiment 2

[0059] This embodiment provides a prefabricated tunnel, such as Figure 6 As shown, including the tunnel primary support 1, the arch wall secondary lining 2 and the prefabricated assembled tunnel invert structure described in Embodiment 1, the outer ends of the first invert block 14 and the second invert block 13 are located at The inner side of the primary support 1 of the tunnel is connected with the secondary lining 2 of the arch wall. A mortise and tenon structure is provided at the connection surfaces of the first inverted arch block 14, the second inverted arch block 13 and the secondary lining 2 of the arch wall, so that the connection between the inverted arch block and the secondary lining 2 of the arch wall is more closely connected.

[0060] The base cushion layer 4 is arranged under the assembled tunnel inverted arch structure, that is, the base cushion layer 4 is located under the waterproof layer 5 . The inner side of the secondary lining 2 of the arch wall is p...

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 discloses a floor-heave-resisting prefabricated assembly type tunnel inverted arch structure, an assembly type inverted tunnel and a method. The floor-heave-resisting prefabricated assembly type tunnel inverted arch structure comprises a first inverted arch subblock and a second inverted arch subblock which are symmetrically arranged; rhombic grilles are connected between the first inverted arch subblock and the second inverted arch subblock; the first inverted arch subblock and the second inverted arch subblock are poured with concrete to form inverted arch structure units; anda plurality of segments of inverted arch structure units are longitudinally and sequentially spliced to form an integrally-assembled type inverted arch structure. The tunnel inverted arch disclosed bythe invention adopts a fabricated assembly type; and the inverted arch structure adopts industrial and standard prefabrication, is prone to being installed, can also protect the inverted arch by filling a floor heave positioned at the uppermost part of the middle and reduces the top tensile stress, thereby reducing formation of tensile cracks at the position.

Description

technical field [0001] The invention relates to the field of tunnel construction, and in particular to a floor drum-resistant prefabricated assembled tunnel inverted arch structure, an assembled tunnel and a method. Background technique [0002] The inverted arch is a reverse arched structure set at the bottom of the tunnel to improve the stress conditions of the upper support structure. It is one of the main components of the tunnel structure. The load on the road surface can be effectively transmitted to the ground, and it can also effectively resist the reaction force from the lower layer of the tunnel. The inverted arch and the secondary lining constitute the tunnel as a whole, increasing the structural stability. However, the inverted arch structure in the tunnel is often cracked or damaged, which seriously affects the safety of train operation. And with the continuous improvement of construction technology, construction level and construction requirements, more and m...

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
Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10E21D11/15E21D11/08E21D11/38E21F16/02
CPCE21D11/08E21D11/105E21D11/107E21D11/152E21D11/38E21F16/02
Inventor 邱道宏于月浩薛翊国侯守江潘建平公惠民
Owner SHANDONG UNIV