CN208633846U - A kind of device for preventing secondary lining from squeezing cracking - Google Patents
A kind of device for preventing secondary lining from squeezing cracking Download PDFInfo
- Publication number
- CN208633846U CN208633846U CN201821197908.6U CN201821197908U CN208633846U CN 208633846 U CN208633846 U CN 208633846U CN 201821197908 U CN201821197908 U CN 201821197908U CN 208633846 U CN208633846 U CN 208633846U
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- curved panel
- squeezing
- lining
- preventing secondary
- secondary lining
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Abstract
The utility model, which is created, provides a kind of device for preventing secondary lining from squeezing cracking, the anti-extrusion mechanism including being fixed on lining trolley tail end；The anti-extrusion mechanism includes curved panel, is equipped in curved panel lower end for the flange rib side fixed with lining trolley, several fixation holes are equipped on flange rib side；Rubber outer panels are equipped on the upside of the curved panel；It is equipped between flange rib side and curved panel and reinforces support plate.It is simple that the utility model creates structure, design is reasonable, pass through corresponding anti-extrusion mechanism, the lap of splice is effectively increased, forced area increases, and realizes soft overlap joint by the rubber outer panels with buffer function, avoid stress concentration, rubber outer panels make trolley tighter in conjunction with lining cutting end simultaneously, prevent concreting process spillage, guarantee end concrete quality.
Description
Technical field
The invention belongs to technical field of tunnel construction, more particularly, to a kind of dress for preventing secondary lining from squeezing cracking
It sets.
Background technique
In traditional construction technology, Tunnel Second Lining is constructed using hydraulic template trolley, and each trolley is with complete two
Secondary lining cutting carries out 10 centimetres of overlap joint, and since the lap of splice is short, trolley uses hydraulic lifting in place, and pressure control is inaccurate, often
By vault, complete second coagulation earth concrete squeezes cracking, and cracked concrete can not be repaired, and causes quality defect of concrete,
Form unstable concrete block, crisis train traffic safety.It needs to improve lap of splice deficiency in conventional construction method, easily causes
The problem of overlapping the mass defects such as concrete stress concentration cracking.
Summary of the invention
In view of this, the invention is intended to overcome above-mentioned defect existing in the prior art, it is secondary to propose that one kind prevents
Lining cutting squeezes the device of cracking.
In order to achieve the above objectives, the technical solution of the invention is achieved in that
A kind of device for preventing secondary lining from squeezing cracking, the anti-extrusion mechanism including being fixed on lining trolley tail end；Institute
Stating anti-extrusion mechanism includes curved panel, is equipped in curved panel lower end for the flange rib side fixed with lining trolley, in method
Blue rib side is equipped with several fixation holes；Rubber outer panels are equipped on the upside of the curved panel；Flange rib side and curved panel
Between be equipped with reinforce support plate.
Further, the outer big 2mm of camber ratio lining trolley outer arc of the rubber outer panels.
Further, reinforcing support plate is triangular structure, and one side right-angle side resists curved panel lower surface, and the other side is straight
The arm of angle resists flange rib side, and reinforces support plate and avoid the fixation hole opened on flange rib side.
Further, the fixation hole is equipped with the several groups of different height, and every group of fixation hole is symmetricly set on reinforcement branch
Fagging two sides.
Further, the rubber outer panels are fixed on curved panel by flat head bolt.
Further, the curved panel uses 12mm thick steel plate.
Further, the rubber outer panels are with a thickness of 14mm.
Compared with the existing technology, the invention has the advantage that
The invention structure is simple, and design rationally, by corresponding anti-extrusion mechanism, effectively increases the lap of splice,
Forced area increases, and realizes soft overlap joint by the rubber outer panels with buffer function, avoids stress concentration, while outside rubber
Panel makes trolley tighter in conjunction with lining cutting end, prevents concreting process spillage, guarantees end concrete quality.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide to further understand the invention, present invention wound
The illustrative embodiments and their description made are used to explain the present invention creation, do not constitute the improper restriction to the invention.?
In attached drawing:
Fig. 1 is the structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram under the invention use state.
Description of symbols:
1- curved panel；2- flange rib side；3- fixation hole；4- rubber outer panels；5- reinforces support plate；6- flat head bolt；
7- lining trolley；The completed secondary lining of 8-；9- anti-extrusion mechanism.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can
To be combined with each other.
In the description of the invention, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For the limitation to the invention.In the description of the invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than a.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
Below with reference to embodiment come the present invention will be described in detail create.
A kind of device for preventing secondary lining from squeezing cracking, as depicted in figs. 1 and 2, including is fixed on 7 tail end of lining trolley
Anti-extrusion mechanism 9；The anti-extrusion mechanism includes curved panel 1, is equipped in curved panel lower end for solid with lining trolley
Fixed flange rib side 2 is equipped with several fixation holes 3 on flange rib side；Rubber outer panels 4 are equipped on the upside of the curved panel；Institute
It states to be equipped between flange rib side and curved panel and reinforces support plate 5.The invention structure is very simple, and practicability is high, leads to
It crosses to take and increases the lap of splice at " the overlap joint block " of secondary lining trolley tail end, meanwhile, the overlap joint extension in anti-extrusion mechanism
Divide and use ebonite board with lining cutting overlap joint contact surface, buffers lift-up pressure, while avoiding cracking, rubber outer panels make trolley
It is tighter in conjunction with lining cutting end, concreting process spillage is prevented, guarantees end concrete quality, has reached multiple mesh
's.Completed secondary lining 8 can be very good to be maintained above the present apparatus, avoid tunnel trolley from squeezing construction joint, also effectively
Avoid stress concentration, vault concrete is easy to crack.
It should be noted that using the curved panel of steel, it is only necessary to carry out bending processing or be processed using section steel cutting, arc
The design of shape structure, primarily to matching lining cutting vault inner wall, rubber outer panels need to be only fixed on curved panel according to gesture,
Reduce processing and installation difficulty.
Above-mentioned curved panel uses 12mm thick steel plate.Above-mentioned rubber outer panels are with a thickness of 14mm.Above-mentioned rubber outer panels
The outer big 2mm of camber ratio lining trolley outer arc, most upper limb height is consistent with lining trolley arch template, is connected nature, reliability
Height effectively plays the soft overlap joint of buffering, avoids and answer just because of the biggish rubber outer panels of outer arc are arranged on curved panel
Power is concentrated.
Above-mentioned reinforcement support plate is triangular structure, and one side right-angle side resists curved panel lower surface, other side right angle
When resisting flange rib, and reinforces support plate and avoid the fixation hole opened on flange rib side.
Above-mentioned fixation hole is equipped with the several groups of different height, and every group of fixation hole is symmetricly set on and reinforces support plate two
Side.Connect effect that is reliable, firm, also, giving full play of reinforcement support plate, it is ensured that the integrally-built stabilization of the present apparatus.
Above-mentioned rubber outer panels are fixed on curved panel by flat head bolt 6, generally, can be in rubber outer panels
Counter sink is set, and bolt head submerges within rubber outer panels outer surface, gives full play to its buffer function, connection fixture will not
Interfere its functionality.
The invention structure is simple, and design rationally, by corresponding anti-extrusion mechanism, effectively increases the lap of splice,
Forced area increases, and realizes soft overlap joint by the rubber outer panels with buffer function, avoids stress concentration, while outside rubber
Panel makes trolley tighter in conjunction with lining cutting end, prevents concreting process spillage, guarantees end concrete quality.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection scope within.
Claims (7)
1. a kind of device for preventing secondary lining from squeezing cracking, it is characterised in that: including being fixed on the anti-extrusion of lining trolley tail end
Press mechanism；The anti-extrusion mechanism includes curved panel, is equipped in curved panel lower end for the flange fixed with lining trolley
Rib side is equipped with several fixation holes on flange rib side；Rubber outer panels are equipped on the upside of the curved panel；Flange rib side with
It is equipped between curved panel and reinforces support plate.
2. a kind of device for preventing secondary lining from squeezing cracking according to claim 1, it is characterised in that: outside the rubber
The outer big 2mm of camber ratio lining trolley outer arc of panel.
3. a kind of device for preventing secondary lining from squeezing cracking according to claim 1, it is characterised in that: the reinforcement branch
Fagging is triangular structure, and one side right-angle side resists curved panel lower surface, and other side right-angle side resists flange rib side, and adds
Strong support plate evacuation opens the fixation hole on flange rib side.
4. a kind of device for preventing secondary lining from squeezing cracking according to claim 1 or 3, it is characterised in that: described solid
Determine the several groups that hole is equipped with different height, and every group of fixation hole is symmetricly set on and reinforces support plate two sides.
5. a kind of device for preventing secondary lining from squeezing cracking according to claim 1, it is characterised in that: outside the rubber
Panel is fixed on curved panel by flat head bolt.
6. a kind of device for preventing secondary lining from squeezing cracking according to claim 1, it is characterised in that: the arcwall face
Plate uses 12mm thick steel plate.
7. a kind of device for preventing secondary lining from squeezing cracking according to claim 1, it is characterised in that: outside the rubber
Plate thickness is 14mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821197908.6U CN208633846U (en) | 2018-07-27 | 2018-07-27 | A kind of device for preventing secondary lining from squeezing cracking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821197908.6U CN208633846U (en) | 2018-07-27 | 2018-07-27 | A kind of device for preventing secondary lining from squeezing cracking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208633846U true CN208633846U (en) | 2019-03-22 |
Family
ID=65738970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821197908.6U Active CN208633846U (en) | 2018-07-27 | 2018-07-27 | A kind of device for preventing secondary lining from squeezing cracking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208633846U (en) |
-
2018
- 2018-07-27 CN CN201821197908.6U patent/CN208633846U/en active Active
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