CN109026054A - Protection canopy for tunnel portal landslide-proofing - Google Patents
Protection canopy for tunnel portal landslide-proofing Download PDFInfo
- Publication number
- CN109026054A CN109026054A CN201810664304.6A CN201810664304A CN109026054A CN 109026054 A CN109026054 A CN 109026054A CN 201810664304 A CN201810664304 A CN 201810664304A CN 109026054 A CN109026054 A CN 109026054A
- Authority
- CN
- China
- Prior art keywords
- ceiling
- bull stick
- damping unit
- bottom bracket
- landslide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000013016 damping Methods 0.000 claims abstract description 64
- 244000309464 bull Species 0.000 claims description 42
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 239000011435 rock Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a kind of protection canopies for tunnel portal landslide-proofing, bottom bracket including cubic, the ceiling being installed at the top of bottom bracket and the damping unit being set between ceiling and bottom bracket, the laterally intermediate of the bottom bracket is vertically fixedly installed support column, the ceiling is two and is respectively in the both lateral sides of support column, the laterally inboard of the support column and ceiling swing up and down the lateral outer side of ceiling can, it is provided on the downside of single ceiling and damping unit support is set between ceiling and bottom bracket for swinging to form damping to ceiling；While capable of guaranteeing that hangar tunnel anti-impact force is big, hangar tunnel cost is effectively reduced, shortens the construction period and maintenance easy to maintain.
Description
Technical field
The present invention relates to slope treatment fields, and in particular to a kind of protection canopy for tunnel portal landslide-proofing.
Background technique
Since the high slope in mountain is steep, ravines and guillies criss-cross, features as poor geologic condition, geological disaster takes place frequently, especially by tunnel portal side slope crag
Rolling Stone caused by avalanche, falling rocks disaster are serious, bring severe challenge to transport development and transportation safety.Especially tunnel portal side
Slope superficial layer slides and the Highway Geological Disasters problems such as high gradient slope Rolling Stone, falling rocks, general anti-by setting concrete hangar tunnel
Highway is protected, and the disadvantages of existing highway armored concrete hangar tunnel cost is high, long in time limit, maintenance difficult, meanwhile, existing railway tunnel
The deficiencies such as hole steel structure hangar tunnel anti-impact force is poor, structural system is unreasonable, industrialized level is low.
Therefore, in order to solve the above problem, a kind of protection canopy for tunnel portal landslide-proofing is needed, can guarantee that hangar tunnel is anti-
While impact force is big, protection canopy cost is effectively reduced, shortens the construction period and maintenance easy to maintain.
Summary of the invention
In view of this, providing the purpose of the present invention is overcoming defect in the prior art for tunnel portal landslide-proofing
Protection canopy while capable of guaranteeing that protection canopy anti-impact force is big, is effectively reduced protection canopy cost, shortens the construction period and dimension easy to maintain
It repairs.
Protection canopy for tunnel portal landslide-proofing of the invention, bottom bracket including cubic are installed on bottom
The ceiling of cradle top and the damping unit being set between ceiling and bottom bracket, the transverse direction of the bottom bracket are intermediate along perpendicular
To support column is fixedly installed, the ceiling is two and is respectively in the both lateral sides of support column, the support column and ceiling
Laterally inboard swing up and down the lateral outer side of ceiling can, is provided on the downside of single ceiling and damping unit support is arranged
For swinging to form damping to ceiling between ceiling and bottom bracket.
Further, the damping unit include the first damping unit, the first damping unit include multiple damping cylinders transversely
It is supported between ceiling and bottom bracket side by side from inside to outside, the upper and lower end for damping cylinder is hingedly connected to ceiling and bottom bracket.
Further, the damped coefficient of multiple damping cylinders is transversely gradually reduced from inside to outside.
Further, the reset spring resetted for ceiling is additionally provided between the ceiling and bottom bracket.
Further, the damping unit further includes the second damping unit that support is set to the lateral intermediate lower section of ceiling, institute
Stating the second damping unit includes upper bull stick, lower bull stick, idler wheel and arc-shaped leaf spring, and the upper end of the upper bull stick is hingedly lateral with ceiling
Centre, the lower end of lower bull stick are articulated among top-support transverse direction, and the upper end of lower bull stick is articulated with the centre of bull stick, the rolling
Wheel rotation be installed on bull stick lower end and lower bull stick by roller supporting in ceiling top, the leaf spring be set to ceiling with it is upper
For providing rotation elastic resistance to upper bull stick between bull stick；The upper bull stick is obliquely installed laterally outward from top to bottom, institute
State the laterally inboard that lower bull stick is located at upper bull stick.
Further, two group of first damping unit is provided with below the ceiling and between two first damping units
Second damping unit, two group of first damping unit are arranged in juxtaposition along longitudinal direction, and it is longitudinal intermediate that second damping unit is located at ceiling.
Further, rolling wheel guide rails, the conformal insertion idler wheel in idler wheel lower end are horizontally arranged at the top of the bottom bracket
Guide rail simultaneously rolls cooperation with rolling wheel guide rails.
Further, the leaf spring is hingedly connected to ceiling and bottom bracket for the upper and lower end of arc-shaped leaf spring and arc-shaped leaf spring,
The concave surface of arc-shaped leaf spring is opposite with the hinge joint of ceiling and upper bull stick.
Further, the bottom bracket includes longitudinally spaced portal frame arranged side by side, passes through stringer between adjacent portal frame
It is fixed.
The beneficial effects of the present invention are: a kind of protection canopy for tunnel portal landslide-proofing disclosed by the invention, by
Damping unit is provided between ceiling and under(-)chassis, vertically conducive to falling rocks is reduced to the protection for tunnel portal landslide-proofing
The momentum of canopy, meanwhile, it sets ramp-like in laterally dipping down from inside to outside when being impacted for the top surface of ceiling, is conducive to falling rocks
Road is rolled, shock resistance is further increased, while guaranteeing that protection canopy anti-impact force is big, protection canopy cost is effectively reduced, shortens
Duration and maintenance easy to maintain.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
Fig. 1 is the structural diagram of the present invention, as shown, the protection for tunnel portal landslide-proofing in the present embodiment
Canopy, bottom bracket 1 including cubic, the ceiling being installed at the top of bottom bracket and is set between ceiling and bottom bracket
Damping unit, the laterally intermediate of the bottom bracket be vertically fixedly installed support column 3, the ceiling be two (including
Ceiling 21 and ceiling 22) and it is respectively in the both lateral sides of support column, the laterally inboard of the support column and ceiling hingedly makes ceiling
Lateral outer side can swing up and down, be provided on the downside of single ceiling and damping unit support be set to ceiling and bottom bracket it
Between for swinging to form damping to ceiling；By being vertically provided with damping unit between ceiling 2 and under(-)chassis, conducive to subtracting
Small falling rocks to the momentum of the protection canopy for tunnel portal landslide-proofing, meanwhile, set the top surface of ceiling 2 to when being impacted
It is ramp-like in laterally dipping down from inside to outside, it is tumbled conducive to falling rocks, further increases shock resistance, guarantee protection canopy anti-impact force
While big, protection canopy cost be effectively reduced, shortens the construction period and maintenance easy to maintain；Laterally inboard indicates in road transverse direction
Between side, outside indicate close to road transverse direction both sides side；Laterally indicate the width direction of road.
In the present embodiment, the damping unit includes the first damping unit, and the first damping unit includes multiple damping cylinders (this
Implementation is set as three, respectively includes damping cylinder 4a, damping cylinder 4b and damping cylinder 4c etc.) transversely it is supported in side by side from inside to outside
Between ceiling 2 and bottom bracket 1, the upper and lower end for damping cylinder is hingedly connected to ceiling 2 and bottom bracket 1；Guarantee ceiling 2 along cross
To torque resistant intensity it is big, guarantee ceiling 2 shelf life height and avoid transverse breakage.
In the present embodiment, the damped coefficient of multiple damping cylinders is transversely gradually reduced from inside to outside；It realizes and puts conducive to ceiling 2
It is dynamic, increase damping stroke, further increases damping.
In the present embodiment, the reset spring 4 resetted for ceiling 2 is additionally provided between the ceiling 2 and bottom bracket 1；
The reset spring 4 is column spring, and the both ends of column spring are individually fixed in ceiling 2 and bottom bracket 1, facilitate ceiling 2
It resets；The column spring conformal can also be coated at outside damping cylinder, guarantee that back stretch effect is more preferable.
In the present embodiment, connection net, the edge of the connection net are provided between two ceilings 2 between different supporting and retaining system units
It is fixedly connected with the edge of ceiling 2；The connection net may filter that larger falling rocks, while the amplitude of oscillation met between different ceilings 2 is poor.
In the present embodiment, the damping unit further includes the second damping dress that support is set to the lateral intermediate lower section of ceiling 2
Set, second damping unit includes upper bull stick 6, lower bull stick 7, idler wheel 8 and leaf spring 9, the upper end of the upper bull stick 6 hingedly with top
2 transverse direction of canopy is intermediate, and the lower end of lower bull stick 7 is articulated with top-support laterally centre, and the upper end of lower bull stick 7 is articulated with bull stick 6
Centre, the idler wheel 8 rotational installation in upper bull stick 6 lower end and lower bull stick 72 top of ceiling, the plate be supported in by idler wheel 8
Spring 9 is set between ceiling 2 and upper bull stick 6 for providing rotation elastic resistance to upper bull stick 6；The upper bull stick 6 is from top to bottom
It is obliquely installed laterally outward, the lower bull stick 7 is located at the laterally inboard of upper bull stick 6；By the second damping unit, it is conducive to offset
The impact force of falling rocks in the diagonal, guarantees the stability of top-support, avoids bottom bracket 1 from toppling over, greatly improves impact strength,
Especially when ceiling 2 rotates, upper bull stick 6 becomes gradient, realizes that 2 torque resistant power of ceiling effectively increases, meanwhile, it is conducive to bottom branch
1 stress of frame is transversely dispersed.
In the present embodiment, the lower section of the ceiling 2 is provided with two group of first damping unit and is located at two first damping units
Between the second damping unit, two group of first damping unit be arranged in juxtaposition along longitudinal direction, and it is vertical that second damping unit is located at ceiling 2
To centre；Conducive to stability under loading, guarantee good impact resistance；It is longitudinal to indicate along link length direction.
In the present embodiment, 8 guide rail of idler wheel is horizontally arranged at the top of the bottom bracket 1,8 lower end of idler wheel is conformal embedding
Enter 8 guide rail of idler wheel and roll with 8 guide rail of idler wheel to cooperate；8 guide rail of idler wheel can be the sliding slot being transversely arranged, and the sliding slot is
The top cross-bar of top-support is formed, for example top cross-bar is channel steel.
In the present embodiment, the leaf spring 9 is hingedly connected to 2 He of ceiling for the upper and lower end of arc-shaped leaf spring 9 and arc-shaped leaf spring 9
The concave surface of bottom bracket 1, arc-shaped leaf spring 9 is opposite with the hinge joint of ceiling 2 and upper bull stick 6；Stability under loading, damping are good.
In the present embodiment, the bottom bracket 1 includes longitudinally spaced portal frame arranged side by side, is passed through between adjacent portal frame
Stringer is fixed；Conducive to raising, facilitate passage, structural strength is high.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (8)
1. a kind of protection canopy for tunnel portal landslide-proofing, it is characterised in that: bottom bracket including cubic is installed on
Ceiling at the top of bottom bracket and the damping unit being set between ceiling and bottom bracket, the bottom bracket it is laterally intermediate
It is vertically fixedly installed support column, the ceiling is two and is respectively in the both lateral sides of support column, the support column and top
The laterally inboard of canopy swing up and down the lateral outer side of ceiling can, is provided on the downside of single ceiling and damping unit supports
It is set between ceiling and bottom bracket for swinging to form damping to ceiling.
2. the protection canopy according to claim 1 for tunnel portal landslide-proofing, it is characterised in that: the damping unit packet
The first damping unit is included, the first damping unit includes that multiple damping cylinders are transversely supported in ceiling and bottom branch side by side from inside to outside
Between frame, the upper and lower end for damping cylinder is hingedly connected to ceiling and bottom bracket.
3. the protection canopy according to claim 1 for tunnel portal landslide-proofing, it is characterised in that: the resistance of multiple damping cylinders
Buddhist nun's coefficient is transversely gradually reduced from inside to outside.
4. the protection canopy according to claim 2 for tunnel portal landslide-proofing, it is characterised in that: the ceiling and bottom
The reset spring resetted for ceiling is additionally provided between bracket.
5. the protection canopy according to claim 4 for tunnel portal landslide-proofing, it is characterised in that: the damping unit is also
The second damping unit of the lateral intermediate lower section of ceiling is set to including supporting, second damping unit includes upper bull stick, lower turn
Bar, idler wheel and arc-shaped leaf spring, the upper end of the upper bull stick is hingedly laterally intermediate with ceiling, and the lower end of lower bull stick is articulated with top branch
Frame is laterally intermediate, and the upper end of lower bull stick is articulated with the centre of bull stick, the idler wheel rotational installation in upper bull stick lower end and under
By roller supporting in ceiling top, the leaf spring is set between ceiling and upper bull stick for providing rotation to upper bull stick bull stick
Elastic resistance；The upper bull stick is obliquely installed laterally outward from top to bottom, and the lower bull stick is located at the laterally inboard of upper bull stick.
6. the protection canopy according to claim 6 for tunnel portal landslide-proofing, it is characterised in that: the lower section of single ceiling
It is provided with two group of first damping unit and the second damping unit between two first damping units, two group of first damping unit
It is arranged in juxtaposition along longitudinal direction, it is longitudinal intermediate that second damping unit is located at ceiling.
7. the protection canopy according to claim 6 for tunnel portal landslide-proofing, it is characterised in that: the bottom bracket top
Portion is horizontally arranged with rolling wheel guide rails, and conformal insertion rolling wheel guide rails in the idler wheel lower end and rolling with rolling wheel guide rails cooperate.
8. the protection canopy according to claim 6 for tunnel portal landslide-proofing, it is characterised in that: the leaf spring is arc
The upper and lower end of leaf spring and arc-shaped leaf spring is hingedly connected to ceiling and bottom bracket, the concave surface of arc-shaped leaf spring and ceiling and upper bull stick
Hinge joint it is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810664304.6A CN109026054B (en) | 2018-06-25 | 2018-06-25 | A protection canopy for tunnel entrance to a cave landslide is prevented |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810664304.6A CN109026054B (en) | 2018-06-25 | 2018-06-25 | A protection canopy for tunnel entrance to a cave landslide is prevented |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109026054A true CN109026054A (en) | 2018-12-18 |
| CN109026054B CN109026054B (en) | 2020-05-29 |
Family
ID=64610750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810664304.6A Active CN109026054B (en) | 2018-06-25 | 2018-06-25 | A protection canopy for tunnel entrance to a cave landslide is prevented |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109026054B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926694A (en) * | 2020-09-09 | 2020-11-13 | 中铁第一勘察设计院集团有限公司 | High-energy-consumption double-curved-surface seismic reduction and isolation support |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100132259A (en) * | 2009-06-09 | 2010-12-17 | 한국건설기술연구원 | Rock shed tunnel structure as retaining wall and contructing method for such rock shed tunnel structure |
| CN101967802A (en) * | 2010-07-30 | 2011-02-09 | 陈洪凯 | Energy-dissipating hangar tunnel and energy-dissipating supporting base thereof |
| CN205502610U (en) * | 2016-02-25 | 2016-08-24 | 吕丽玲 | Convenient portable building protection canopy |
| CN107044094A (en) * | 2017-05-27 | 2017-08-15 | 陕西中咨土木工程技术研究院有限公司 | A kind of tunnel face rockfall multistage protection method and its structure |
| CN207376492U (en) * | 2017-10-31 | 2018-05-18 | 长安大学 | A kind of highway hangar tunnel safeguard structure suitable under precipitous cliff |
-
2018
- 2018-06-25 CN CN201810664304.6A patent/CN109026054B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100132259A (en) * | 2009-06-09 | 2010-12-17 | 한국건설기술연구원 | Rock shed tunnel structure as retaining wall and contructing method for such rock shed tunnel structure |
| CN101967802A (en) * | 2010-07-30 | 2011-02-09 | 陈洪凯 | Energy-dissipating hangar tunnel and energy-dissipating supporting base thereof |
| CN205502610U (en) * | 2016-02-25 | 2016-08-24 | 吕丽玲 | Convenient portable building protection canopy |
| CN107044094A (en) * | 2017-05-27 | 2017-08-15 | 陕西中咨土木工程技术研究院有限公司 | A kind of tunnel face rockfall multistage protection method and its structure |
| CN207376492U (en) * | 2017-10-31 | 2018-05-18 | 长安大学 | A kind of highway hangar tunnel safeguard structure suitable under precipitous cliff |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926694A (en) * | 2020-09-09 | 2020-11-13 | 中铁第一勘察设计院集团有限公司 | High-energy-consumption double-curved-surface seismic reduction and isolation support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109026054B (en) | 2020-05-29 |
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