CN104963695A - Protection open cut tunnel and tunnel structure - Google Patents
Protection open cut tunnel and tunnel structure Download PDFInfo
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- CN104963695A CN104963695A CN201510284176.9A CN201510284176A CN104963695A CN 104963695 A CN104963695 A CN 104963695A CN 201510284176 A CN201510284176 A CN 201510284176A CN 104963695 A CN104963695 A CN 104963695A
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- protective cover
- tunnel
- open cut
- protection open
- cut tunnel
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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a protection open cut tunnel and a tunnel structure; the protection open cut tunnel comprises a protection cover crossing a road and arranged above the road, and bases arranged on the ground and positioned on two sides of the road; the bottom of the protection cover is fixed on the bases. Construction people can arrange the bases on the ground and mount the protection cover, so construction is convenient, thus saving time and labor; the protection open cut tunnel is simple in structure, concise in construction technology, low in cost, and very suitable for being applied to railways and roads in operation.
Description
Technical field
The present invention relates to protection open cut tunnel technical field, particularly a kind of protection open cut tunnel for road place, also relates to a kind of tunnel structure comprising above-mentioned protection open cut tunnel.
Background technology
The roads such as railway, highway or roadbed the place of process, often can run into high gradient slope.Hinder the normal operation of railway, highway for preventing the falling rocks in side slope from tumbling, or in order to ensure the safety of personnel in construction, maintenance process, usually safeguard structure can be set at roadbed section, high gradient slope or tunnel portal place.
At present, the safeguard structure of use is generally initiatively or passive protection net.Protective screening is the net structure being wound around by multiple iron wire and being formed.Protected by falling rocks place protective screening being wrapped in side slope.But, when protective screening is set, needs staff to climb up side slope and construct, and need by fixture, protective screening nail to be located in side slope.Therefore the bothersome effort and protection effect is limited when using protective screening to protect.
Therefore, how solving the problem arranging safeguard structure in tunnel or roadbed section high gradient slope place, is those skilled in the art's technical issues that need to address.
Summary of the invention
The invention provides a kind of protection open cut tunnel, be directly fixed on road by assembled for the protective cover of protection open cut tunnel, therefore easy construction, save trouble and labor, be particularly useful for existing railway in operation or highway.
Protection open cut tunnel of the present invention, comprises across road and is arranged on the protective cover of the top of described road, and arranges on the ground and be positioned at the basis of road both sides, and the bottom of wherein said protective cover is fixed on described basis.
In one embodiment, described basis to comprise in the groove being separately positioned on ground and is positioned at the first reinforced concrete floor of below and is positioned at the second reinforced concrete floor of top, and being fixed on the top of described first reinforced concrete floor and the angle steel be embedded in described second reinforced concrete floor, the end winding support of wherein said protective cover is on described angle steel.
In one embodiment, the bearing of trend that described protective cover comprises along road is arranged side by side successively and is fixed to one another multiple corrugated sheets of connection.
In one embodiment, the upper surface of described protective cover be configured to extend along the direction of described road arcuate surface, rectangular surfaces or semicircle face.
In one embodiment, the inner surface of described protective cover is provided with anticorrosive coat and insulating layer from inside to outside successively, and the external surface of described protective cover is provided with anticorrosive coat.
In one embodiment, the top of described protective cover is provided with cushion coat.
In one embodiment, described cushion coat comprises one or more in macadam, sand layer, bubble concrete layer, rubber layer and polyurethane sheet.
Tunnel structure of the present invention comprises tunnel body, and on the portal being resisted against described tunnel body and the protection open cut tunnel extended towards the direction away from described tunnel body, and wherein said protection open cut tunnel is the protection open cut tunnel according to any one of above-mentioned.
In one embodiment, described tunnel body is provided with isolated multiple, and described protection open cut tunnel is between adjacent two described tunnel bodies, and two of described protective cover sides are resisted against on corresponding portal respectively.
In one embodiment, described portal is provided with groove, the side of described protective cover is fixed in described groove.
Relative to prior art, the protective cover in protection open cut tunnel of the present invention is fixed by being arranged on ground basis.Therefore, constructor arranges basis and assembled prefabricated protective cover on the ground, therefore easy construction, construction technology succinctly, save trouble and labor.And the structure of this protection open cut tunnel is simple, construction technology is succinct, and cost is lower, under being particularly useful for the operating modes such as the railway of existing operation, highway.
Accompanying drawing explanation
Also will be described in more detail the present invention with reference to accompanying drawing based on embodiment hereinafter.
Fig. 1 is a kind of installation site schematic diagram of protection open cut tunnel of the present invention.
Fig. 2 is the fixed form schematic diagram of the protective cover in the present invention.
Fig. 3 is the partial enlarged drawing in the A portion of Fig. 2.
In the accompanying drawings, identical parts use identical Reference numeral.Accompanying drawing is not according to the scale of reality.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, protection open cut tunnel of the present invention comprises across road 4 and is arranged on the protective cover 2 of the top of road 4.Protective cover 2 extends along the direction of road 4.Arrange by the way, the Falling Rocks problem of the one-sided or both sides of protection road 4 can be played.Wherein, road 4 can be railway, highway or roadbed etc.
In one embodiment, the upper surface of protective cover 2 be arranged to extend along the direction of road 4 arcuate surface, rectangular surfaces or semicircle face.Arcuate surface or semicircle face higher by force intensity, and facilitate falling rocks to tumble from protective cover 2, to improve the application life of protective cover 2.The structure of rectangular surfaces is simple, convenient setting.
In addition, protective cover 2 inner surface from inside to outside (direction away from protective cover 2) be provided with anticorrosive coat and insulating layer successively.Only can be coated with anticorrosive coat at the external surface of protective cover 2, to save cost, and reduce workload.After being provided with anticorrosive coat, the possibility that protective cover 2 is corroded can be reduced.After being provided with insulating layer, the insulating properties of protective cover 2 can be improved, reduce in the below of protective cover 2 possibility that is breakdown by protective cover during cable 2 and the company's of generation electricity.In one example in which, anticorrosive coat is preferably zinc coat, to save cost, and improves corrosion resistance.Insulating layer comprises the hot melt plastic layer and insulating lacquer layer that arrange from inside to outside, to improve insulating properties.The thickness of hot melt plastic layer is 0.2-0.4mm.Certainly, also anticorrosive coat and insulating layer can be provided with at the inner surface of protective cover 2 and external surface.
Can also cushion coat be provided with above protective cover 2, to reduce the impact that falling rocks causes protective cover 2, thus improve the application life of protective cover 2.In one example in which, cushion coat can comprise one or more in the inorganic material such as macadam, sand layer, foam reinforced concrete floor or the organic material such as rubber layer, polyurethane sheet.When arranging, directly rubble, sand, foam coagulation, rubber or polyurethane sheet are laid on protective cover 2.Arrange by the way, structure be simple, easy construction, cost is lower.
Further, protective cover 2 comprises multiple corrugated sheet be fixedly connected with each other by such as bolt.After assembled good corrugated sheet, multiple corrugated sheet extends along road direction successively side by side.The structure of corrugated sheet is simple, cost is lower, easy to install and use.And as required corrugated sheet can be bent into required shape, do not need to be fixed by extra parts, therefore construction technology is succinct, under being particularly useful for the operating modes such as the railway of existing operation, highway.The waveform of corrugated sheet can be sinus-shaped, triangle or rectangle etc.The material of corrugated sheet is preferably metal material, to improve the weight capacity of corrugated sheet.Certainly, the material of corrugated sheet can also be other materials such as carbon fiber, plastics.
More specifically, before being spliced by corrugated sheet, independent corrugated sheet first can be bent into required shape.Arcuate surface, semicircle face or rectangular surfaces is formed after multiple corrugated sheet splicing.The length of corrugated sheet do not reach require time, multiple corrugated sheet can be spliced.
In addition, before being spliced by corrugated sheet, first anticorrosion and insulation processing can be carried out to each corrugated sheet.Anticorrosive coat, hot melt plastic layer and insulating lacquer layer can be all coated with, to facilitate process on the periphery wall of corrugated sheet.
Certainly, protective cover 2 can also for the metal sheet overarched.The intensity of metal sheet do not reach require time, can also stent support be passed through.
In a specific embodiment, as shown in Figure 1, protect open cut tunnel to be used in tunnel structure.Tunnel structure comprises tunnel body 1, and is resisted against the protective cover 2 on the portal of tunnel body 1.After setting protective cover 2, protective cover 2 extends towards the direction away from tunnel body 1.And protective cover 2 is also bent into and matches with the profile of tunnel body 1.In one example in which, when tunnel body 1 overarches, protective cover 2 also becomes the arch matched with the arch of tunnel body 1.Setting like this, can prevent falling rocks, reduces hole frost heave, and reduces the problem of driver's eye fatigue that light sudden change causes when coming in and going out tunnel, alleviates the effect of Railway Tunnel aerodynamic effect simultaneously.
When being provided with multiple isolated tunnel body 1, protection open cut tunnel can be set between adjacent two tunnel bodies 1.And the side of protective cover is resisted against on corresponding portal respectively.Setting like this, effectively can solve the problem of driver's eye fatigue that light sudden change causes when frequently coming in and going out tunnel, alleviate the effect of Railway Tunnel aerodynamic effect simultaneously.
Further, portal also offers groove.The side of protective cover 2 is arranged in a groove.Certainly, by concrete, protective cover 2 can also be fixed in a groove.Setting like this, by portal for protective cover 2 provides certain support force, thus can reduce protective cover 2 produces distortion possibility because of stressed.Meanwhile, effects such as preventing percolating water can also be played.In addition, as shown in Figure 2, the bottom of protective cover 2 is fixed on ground 5 by the basis 3 being positioned at road both sides.Setting like this, constructor arranges basis 3 and installs protective cover 2, therefore easy construction, save trouble and labor on ground 5, and construction technology is succinct, under being particularly useful for the operating modes such as the railway of existing operation, highway.When needs fixed blade guard 2, first on ground 5, offer the groove with certain depth as required, then basis 3 is established in a groove.
In one embodiment, as shown in Figure 3, basis 3 comprises the first reinforced concrete floor 31 being positioned at below, the second reinforced concrete floor 34 being positioned at top, and is fixed on the top of described first reinforced concrete floor 31 and the angle steel 32 be embedded in the second reinforced concrete floor 34 by such as stone bolt 33.Wherein, the end of protective cover 2 is fixed on angle steel 32 by such as connecting bolt 35.After setting the second reinforced concrete floor 34, the end of protective cover 2 is also embedded in the second reinforced concrete floor 34.Setting like this, can improve the constant intensity of protective cover 2, thus improves the stability of protective cover 2.
In concrete construction sequence, the first reinforced concrete floor 31 is first set, can the angle steel 32 of part is embedded in the first reinforced concrete floor 31 during this period, can tentatively fix angle steel 32, reduce the possibility of its generation play when fixing angle steel 32.After the first reinforced concrete floor 31 solidifies, by stone bolt 33, angle steel 32 is fixed in the first reinforced concrete floor 31, then by connecting bolt 35, protective cover 2 is fixed on angle steel 32.After good protective cover 2 to be fixed, the second reinforced concrete floor 34 is set.
In a specific embodiment, the corrugated sheet of protective cover 2 for overarching.Now, corrugated sheet has two bottoms contacted with ground 5.Each bottom is equipped with basis 3.And two bases 3 are spaced apart and arranged on ground 5, to save construction material, to reduce the amount of labour, and save cost.
Although invention has been described with reference to preferred embodiment, without departing from the scope of the invention, various improvement can be carried out to it and parts wherein can be replaced with equivalent.Especially, only otherwise there is structural hazard, the every technical characteristic mentioned in each embodiment all can combine in any way.The present invention is not limited to specific embodiment disclosed in literary composition, but comprises all technical schemes fallen in the scope of claim.
Claims (10)
1. protect an open cut tunnel, comprise across road and be arranged on the protective cover of the top of described road, and arrange on the ground and be positioned at the basis of road both sides, the bottom of wherein said protective cover is fixed on described basis.
2. protection open cut tunnel according to claim 1, it is characterized in that, described basis to comprise in the groove being separately positioned on ground and is positioned at the first reinforced concrete floor of below and is positioned at the second reinforced concrete floor of top, and being fixed on the top of described first reinforced concrete floor and the angle steel be embedded in described second reinforced concrete floor, the end winding support of wherein said protective cover is on described angle steel.
3. protection open cut tunnel according to claim 1 and 2, is characterized in that, the bearing of trend that described protective cover comprises along road is arranged side by side successively and is fixed to one another multiple corrugated sheets of connection.
4. the protection open cut tunnel according to any one of claim 1-3, is characterized in that, the arcuate surface that the upper surface of described protective cover is configured to extend along the direction of described road, rectangular surfaces or semicircle face.
5. the protection open cut tunnel according to any one of claim 1-4, is characterized in that, the inner surface of described protective cover is provided with anticorrosive coat and insulating layer from inside to outside successively, and the external surface of described protective cover is provided with anticorrosive coat.
6. the protection open cut tunnel according to any one of claim 1-5, is characterized in that, the top of described protective cover is provided with cushion coat.
7. protection open cut tunnel according to claim 6, is characterized in that, described cushion coat comprise in macadam, sand layer, bubble concrete layer, rubber layer and polyurethane sheet one or more.
8. a tunnel structure, it is characterized in that, comprise tunnel body, and on the portal being resisted against described tunnel body and the protection open cut tunnel extended towards the direction away from described tunnel body, the protection open cut tunnel of wherein said protection open cut tunnel according to any one of claim 1-7.
9. tunnel structure according to claim 8, it is characterized in that, described tunnel body is provided with isolated multiple, and described protection open cut tunnel is between adjacent two described tunnel bodies, and two of described protective cover sides are resisted against on corresponding portal respectively.
10. tunnel structure according to claim 8 or claim 9, it is characterized in that, described portal is provided with groove, the side of described protective cover is fixed in described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510284176.9A CN104963695B (en) | 2015-05-28 | 2015-05-28 | Protect open cut tunnel and tunnel structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510284176.9A CN104963695B (en) | 2015-05-28 | 2015-05-28 | Protect open cut tunnel and tunnel structure |
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| Publication Number | Publication Date |
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| CN104963695A true CN104963695A (en) | 2015-10-07 |
| CN104963695B CN104963695B (en) | 2017-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510284176.9A Active CN104963695B (en) | 2015-05-28 | 2015-05-28 | Protect open cut tunnel and tunnel structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307005A (en) * | 2019-07-09 | 2019-10-08 | 福建工程学院 | Device and method for Strengthening Tunnel mountain body entrance landslide |
| CN112326925A (en) * | 2020-10-18 | 2021-02-05 | 西南科技大学 | Method for evaluating stability of tunnel surrounding rock based on matter element analysis |
Citations (5)
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| KR20040089464A (en) * | 2004-02-05 | 2004-10-21 | 송희종 | Tunnel structure for prevention falling stone |
| CN201502783U (en) * | 2009-08-25 | 2010-06-09 | 衡水益通金属制品有限责任公司 | Protective part for semi-circular arch-shaped corrugated metal culvert |
| CN102678132A (en) * | 2012-06-05 | 2012-09-19 | 中铁第一勘察设计院集团有限公司 | Anti-rockfall reinforced concrete open-cut tunnel structure |
| CN204267041U (en) * | 2014-11-28 | 2015-04-15 | 大连市市政设计研究院有限责任公司 | A kind of tunnel portal structure adopting embedded cover arch |
| CN204877489U (en) * | 2015-05-28 | 2015-12-16 | 中国铁道科学研究院铁道建筑研究所 | Protection open cut tunnel and tunnel structure |
-
2015
- 2015-05-28 CN CN201510284176.9A patent/CN104963695B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040089464A (en) * | 2004-02-05 | 2004-10-21 | 송희종 | Tunnel structure for prevention falling stone |
| CN201502783U (en) * | 2009-08-25 | 2010-06-09 | 衡水益通金属制品有限责任公司 | Protective part for semi-circular arch-shaped corrugated metal culvert |
| CN102678132A (en) * | 2012-06-05 | 2012-09-19 | 中铁第一勘察设计院集团有限公司 | Anti-rockfall reinforced concrete open-cut tunnel structure |
| CN204267041U (en) * | 2014-11-28 | 2015-04-15 | 大连市市政设计研究院有限责任公司 | A kind of tunnel portal structure adopting embedded cover arch |
| CN204877489U (en) * | 2015-05-28 | 2015-12-16 | 中国铁道科学研究院铁道建筑研究所 | Protection open cut tunnel and tunnel structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307005A (en) * | 2019-07-09 | 2019-10-08 | 福建工程学院 | Device and method for Strengthening Tunnel mountain body entrance landslide |
| CN110307005B (en) * | 2019-07-09 | 2021-08-17 | 福建工程学院 | Device and method for reinforcing landslide at tunnel portal |
| CN112326925A (en) * | 2020-10-18 | 2021-02-05 | 西南科技大学 | Method for evaluating stability of tunnel surrounding rock based on matter element analysis |
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| Publication number | Publication date |
|---|---|
| CN104963695B (en) | 2017-11-28 |
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Address after: 100081 No. 2 Daliushu Road, Haidian District, Beijing Patentee after: Railway Construction Research Institute of China Railway Research Institute Group Co., Ltd. Address before: Room 202, Rock and Soil Room, No. 2 Daliushu Road, Haidian District, Beijing Patentee before: Railway Construction Institute of China Academy of Railway Sciences |