CN208105091U - A kind of buffering energy-consumption shed tunnel top composite construction suitable for anti-rock-fall impact - Google Patents
A kind of buffering energy-consumption shed tunnel top composite construction suitable for anti-rock-fall impact Download PDFInfo
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- CN208105091U CN208105091U CN201820441141.0U CN201820441141U CN208105091U CN 208105091 U CN208105091 U CN 208105091U CN 201820441141 U CN201820441141 U CN 201820441141U CN 208105091 U CN208105091 U CN 208105091U
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Abstract
The utility model discloses a kind of buffering energy-consumption shed tunnel top composite constructions suitable for anti-rock-fall impact, back fill course including shed tunnel top is arranged in, cushion is provided between back fill course and shed tunnel top, the cushion includes successively upper and lower spaced first plate layer and the second plate layer, the spring and the first plate layer and the second plate layer that multiple parallel interval arrangements are connected between first plate layer and the second plate layer are arranged in parallel with shed tunnel top, are filled with polystyrene material between spring two-by-two.The utility model can reduce the dead load that shed tunnel top T joist support is received, cushion uses two plate layers, the spring of multiple parallel interval arrangements is connected between plate layer and plate layer, the impact of falling rocks can be buffered, and setting polystyrene material can significantly consume the impact energy of falling rocks between spring two-by-two, improve the ability of the anti-rock-fall impact of hangar tunnel.
Description
Technical field
The utility model relates to Highway Tunnel Construction fields, and in particular to a kind of buffering energy-consumption suitable for anti-rock-fall impact
Shed tunnel top composite construction.
Background technique
Shed hole structure durability is high, the later period protects and leads to easy to maintenance, rebuilds in western mountainous areas highway or disaster wide in section
General application.Traditional reinforced concrete hangar tunnel be by structural top backfill at least soil layer of 1.5m to reach buffering impact force of falling stone,
The purpose for protecting structure itself not destroyed by falling rocks, in the region that disaster takes place frequently, backfill thickness should also be increase accordingly.But backfill
Severe is big, especially for large span hangar tunnel, after backfill is by the backfill of certain ratio of slope, and excessive height, top T beam mid span moment mistake
Greatly, structure bulky in design, arrangement of reinforcement is excessive, and not only bad for antidetonation, investment is also difficult to control.As seven-star close canopy on " road Chuan Wen "
Hole, the big qi hangar tunnel of G317 are that shed hole structure impact resistance itself is lower and leads to top since rock-fall impact load is larger
T beam is smashed by falling rocks.Therefore a kind of new top backfill combining form is needed, mitigates gravity suffered by shed tunnel top and improves hangar tunnel
Anti- rock-fall impact ability.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of buffering energy-consumption canopies suitable for anti-rock-fall impact
Composite construction at the top of hole, the composite construction can reduce the perseverance that shed tunnel top T joist support is received compared with the backfill light weight of same volume
It carries, cushion uses two plate layers, and the spring of multiple parallel interval arrangements is connected between plate layer and plate layer, can buffer falling rocks
Impact, and polystyrene material is set between spring two-by-two can significantly consume the impact energy of falling rocks, improve hangar tunnel
The ability of anti-rock-fall impact.
The utility model is achieved through the following technical solutions：
A kind of buffering energy-consumption shed tunnel top composite construction suitable for anti-rock-fall impact, including returning for shed tunnel top is arranged in
Fill stratum, is provided with cushion between back fill course and shed tunnel top, the cushion includes successively between the upper and lower every setting
The first plate layer and the second plate layer, the spring and first of multiple parallel intervals arrangement is connected between the first plate layer and the second plate layer
Plate layer and the second plate layer are arranged in parallel with shed tunnel top, are filled with polystyrene material between spring two-by-two.
The first plate layer and the second plate layer can be light metal layers, lumber layer in the utility model or other are shock proof
High polymer material layer, such as existing MODIFIED PP etc..The spring of multiple parallel interval arrangements, which can be, to be placed in the vertical direction,
It is also possible to be obliquely installed arrangement.When being obliquely installed arrangement, polystyrene material can between multiple springs wedge shaped heap
Product, this accumulation mode can effectively disperse impact force, the effective impact energy for consuming falling rocks.Existing EPS padded coaming,
Higher with shearing strength, resilience is more preferable, and material should not destroy under rock-fall impact load, can be repeated as many times benefit
With；EPE material is more preferable compared to EPS padded coaming plasticity, can adapt to the anisotropic approach such as round corrugated steel pipe.Buffering consumption
Can composite construction its rigidity it is lower, under Impact Load, moderate finite deformation can occur, being capable of significantly shock absorbing energy
Amount, under the economic filling thickness of 0.6mEPE, the anti-rock-fall impact energy level of hangar tunnel can achieve before 2 times or more.In falling rocks calamity
The western mountainous areas that evil takes place frequently is of great significance to guarantee highway normal operation.
One layer of rubber layer is additionally provided between second plate layer and shed tunnel top.This set can further buffer hangar tunnel top
The impact property that portion is subject to.
Vertical range between first plate layer and the second plate layer is 0.6~0.8m.It hangs down between first plate layer and the second plate layer
The setting of straight distance is exactly the thickness of polystyrene material layer, this thickness range is that the economic filling of polystyrene material is thick
Degree
Multiple alternate grooves are provided on the upper surface of first plate layer.The setting of groove increases the first plate layer and backfill
The contact area of soil, is conducive to the firm setting of cushion and by the fastness in impact process.
Multiple rubber bars being arranged side by side are provided in its lowest surfaces in groove.The setting of rubber bar can be helped further
It helps and improves anti-buffering ability to bear.
Rubber bar is hollow rubber stick.Hollow setting can reduce the load-bearing capacity of shed tunnel top.
The utility model compared with prior art, has the following advantages and benefits：
The utility model can reduce the dead load that shed tunnel top T joist support is received, and cushion uses two plate layers, plate layer and plate layer
Between be connected with the spring of multiple parallel intervals arrangement, can buffer the impact of falling rocks, and polyphenyl is set between spring two-by-two
Vinyl material can significantly consume the impact energy of falling rocks, improve the ability of the anti-rock-fall impact of hangar tunnel.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings：
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is that the spring of the utility model is to be obliquely installed structural schematic diagram.
Fig. 3 is to implement on hangar tunnel and the structural schematic diagram filled with backfill.
Label and corresponding parts title in attached drawing：
1- the first plate layer, 2- the second plate layer, 3- spring, 4- polystyrene material, 5- cushion, 6- shed tunnel top, 7-
Back fill course, 8- groove, 9- rubber bar.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment 1
As shown in Figure 1, 2, 3, a kind of 6 composite construction of buffering energy-consumption shed tunnel top suitable for anti-rock-fall impact, including set
The back fill course 7 in shed tunnel top 6 is set, cushion 5, the cushion are provided between back fill course 7 and shed tunnel top 6
5 include successively upper and lower spaced first plate layer 1 and the second plate layer 2, are connected between the first plate layer 1 and the second plate layer 2 more
The spring 3 and the first plate layer 1 and the second plate layer 2 of a parallel interval arrangement are arranged in parallel with shed tunnel top 6, two-by-two between spring 3
Filled with polystyrene material 4.
The first plate layer 1 and the second plate layer 2 can be light metal layers, lumber layer or other shock resistances in the utility model
High polymer material layer, such as existing MODIFIED PP etc..
As shown in Figure 1, 2, the spring 3 of multiple parallel interval arrangements, which can be, is placed in the vertical direction, and is also possible to incline
Tiltedly setting arrangement.When being obliquely installed arrangement, polystyrene material can the wedge shaped accumulation between multiple springs 3, this heap
Product mode can effectively disperse impact force, the effective impact energy for consuming falling rocks.Existing EPS padded coaming has shearing resistance
Intensity is higher, and resilience is more preferable, and material should not destroy under rock-fall impact load, can be repeated as many times and utilize；EPE material
It is more preferable compared to EPS padded coaming plasticity, it can adapt to the anisotropic approach such as round corrugated steel pipe.Buffering energy-consumption composite construction
Its rigidity is lower, and under Impact Load, moderate finite deformation can occur, can significantly shock absorbing energy, in 0.6mEPE
Under economic filling thickness, the anti-rock-fall impact energy level of hangar tunnel can achieve before 2 times or more.In western part that falling rocks disaster takes place frequently
Mountain area is of great significance to guarantee highway normal operation.
One layer of rubber layer is additionally provided between second plate layer 2 and shed tunnel top 6.This set can further buffer hangar tunnel
The impact property that top 6 is subject to.
Vertical range between first plate layer 1 and the second plate layer 2 is 0.6~0.8m.First plate layer 1 and the second plate layer 2 it
Between the setting of vertical range be exactly 4 layers of polystyrene material of thickness, this thickness range for polystyrene material 4 economy
Filling thickness
Embodiment 3
Multiple alternate grooves 8 are provided on the upper surface of first plate layer 1.The setting of groove 8 increases 1 He of the first plate layer
The contact area of backfill is conducive to the firm setting of cushion 5 and by the fastness in impact process.
Multiple rubber bars 9 being arranged side by side are provided in its lowest surfaces in groove 8.The setting of rubber bar 9 can be into one
Step helps to improve anti-buffering ability to bear.
Rubber bar 9 is hollow rubber stick 9.Hollow setting can reduce the load-bearing capacity of shed tunnel top 6.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of buffering energy-consumption shed tunnel top composite construction suitable for anti-rock-fall impact, which is characterized in that including being arranged in canopy
The back fill course (7) of (6), is provided with cushion (5), the buffering at the top of hole between back fill course (7) and shed tunnel top (6)
Bed course (5) includes successively upper and lower spaced first plate layer (1) and the second plate layer (2), the first plate layer (1) and the second plate layer
(2) spring (3) of multiple parallel intervals arrangement is connected between and the first plate layer (1) and the second plate layer (2) and shed tunnel top
(6) it is arranged in parallel, is filled with polystyrene material (4) between spring (3) two-by-two.
2. the buffering energy-consumption shed tunnel top composite construction according to claim 1 suitable for anti-rock-fall impact, feature exist
In being additionally provided with one layer of rubber layer between the second plate layer (2) and shed tunnel top (6).
3. the buffering energy-consumption shed tunnel top composite construction according to claim 2 suitable for anti-rock-fall impact, feature exist
In the vertical range between the first plate layer (1) and the second plate layer (2) is 0.6~0.8m.
4. the buffering energy-consumption shed tunnel top composite construction according to claim 1 suitable for anti-rock-fall impact, feature exist
In being provided with multiple alternate grooves (8) on the upper surface of the first plate layer (1).
5. the buffering energy-consumption shed tunnel top composite construction according to claim 4 suitable for anti-rock-fall impact, feature exist
In groove (8) is interior to be provided with multiple rubber bars (9) being arranged side by side in its lowest surfaces.
6. the buffering energy-consumption shed tunnel top composite construction according to claim 5 suitable for anti-rock-fall impact, feature exist
In rubber bar (9) is hollow rubber stick (9).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820441141.0U CN208105091U (en) | 2018-03-29 | 2018-03-29 | A kind of buffering energy-consumption shed tunnel top composite construction suitable for anti-rock-fall impact |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820441141.0U CN208105091U (en) | 2018-03-29 | 2018-03-29 | A kind of buffering energy-consumption shed tunnel top composite construction suitable for anti-rock-fall impact |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109325320A (en) * | 2018-12-10 | 2019-02-12 | 四川大学 | The energy consumption composite cushion and design method be made of EPE padded coaming and backfill |
| CN111395215A (en) * | 2020-03-19 | 2020-07-10 | 中铁第一勘察设计院集团有限公司 | UHPC edge angle type assembled buffer layer for rockfall protection shed tunnel |
| CN111424571A (en) * | 2020-03-31 | 2020-07-17 | 四川省公路规划勘察设计研究院有限公司 | Anti rockfall strikes shed tunnel structure |
| CN111794248A (en) * | 2020-08-07 | 2020-10-20 | 中铁七局集团第三工程有限公司 | Spliced deep foundation pit slope protection device |
-
2018
- 2018-03-29 CN CN201820441141.0U patent/CN208105091U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109325320A (en) * | 2018-12-10 | 2019-02-12 | 四川大学 | The energy consumption composite cushion and design method be made of EPE padded coaming and backfill |
| CN111395215A (en) * | 2020-03-19 | 2020-07-10 | 中铁第一勘察设计院集团有限公司 | UHPC edge angle type assembled buffer layer for rockfall protection shed tunnel |
| CN111395215B (en) * | 2020-03-19 | 2021-10-22 | 中铁第一勘察设计院集团有限公司 | UHPC edge angle type assembled buffer layer for rockfall protection shed tunnel |
| CN111424571A (en) * | 2020-03-31 | 2020-07-17 | 四川省公路规划勘察设计研究院有限公司 | Anti rockfall strikes shed tunnel structure |
| CN111794248A (en) * | 2020-08-07 | 2020-10-20 | 中铁七局集团第三工程有限公司 | Spliced deep foundation pit slope protection device |
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Effective date of registration: 20190528 Address after: 610000 No. 35 Taisheng North Road, Chengdu, Sichuan Province Patentee after: Sichuan Transportation Survey and Design Research Institute Co., Ltd. Address before: 610000 No. 35 Taisheng North Road, Chengdu, Sichuan Province Patentee before: SICHUAN COMMUNICATION SURVEYING&DESIGN INSTITUTE |