CN109440909B - Cover plate for railway tunnel and installation method thereof - Google Patents
Cover plate for railway tunnel and installation method thereof Download PDFInfo
- Publication number
- CN109440909B CN109440909B CN201811591874.3A CN201811591874A CN109440909B CN 109440909 B CN109440909 B CN 109440909B CN 201811591874 A CN201811591874 A CN 201811591874A CN 109440909 B CN109440909 B CN 109440909B
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- cover plate
- connector
- rib
- body panel
- cover
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000009434 installation Methods 0.000 title claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910021389 graphene Inorganic materials 0.000 claims description 9
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000011490 mineral wool Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000009970 fire resistant effect Effects 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 claims 1
- 230000006978 adaptation Effects 0.000 abstract description 2
- 230000004888 barrier function Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000013329 compounding Methods 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention provides a cover plate for a railway tunnel, which is characterized by comprising the following components: a body panel configured in a rectangular shape; the reinforcing ribs are arranged on the main body panel and comprise a plurality of first rib plates and second rib plates which are arranged on one surface of the main body panel in a crossing manner; wherein, the apron both ends are equipped with first connector and second connector respectively, and is adjacent pass through between the apron first connector and the second connector adaptation installation form the connection. The invention also provides a method for installing the cover plate of the railway tunnel. The cover plate has the advantages of high structural strength, strong supporting rigidity, strong bearing capacity, long service life and the like, is convenient to install, and is high in installation efficiency.
Description
Technical Field
The invention relates to the field of railway tunnel construction, in particular to a cover plate for a railway tunnel. The invention also relates to a method for installing the cover plate of the railway tunnel.
Background
On both sides of the railway tunnel, a cable groove for cable laying and a groove for drainage are provided. In order to protect the cable, a cover plate is arranged on the cable trough, and meanwhile, in order to ensure smoothness of the trough and avoid sundries entering the trough, a cover plate is also arranged on the trough.
However, among existing deck boards for railway tunnels, reinforced concrete deck boards are often used in the majority. The reinforced concrete cover plate has the defects of large weight, easy damage, poor heat preservation performance, poor sealing performance, poor integrity and the like. And when the cover plate has problems, the influence of blocking of a tunnel groove, unsmooth drainage, personnel injury, engineering machinery damage and the like can be caused, and then secondary disasters such as sinking of a substrate, ice of a ballast bed, influence on operation and the like are caused. In addition, the existing concrete cover plate is large in weight and easy to damage, occupies a large amount of manpower in the construction process, and is low in installation efficiency and high in later maintenance cost.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide a cover plate for a railway tunnel, which is made of graphene fiber reinforced composite materials and is formed by a compression molding process, and the cover plate is simple in structure, convenient to process, low in manufacturing cost and light in weight. And the cover plate has the advantages of high structural strength, strong supporting rigidity, strong bearing capacity, long service life and the like by arranging the reinforcing ribs. In addition, this apron is installed through mutual pressure formula overlap joint and is connected, can effectively improve the installation connection between the adjacent apron, has improved the installation effectiveness of apron. In addition, form sealedly in apron junction, can effectively guarantee apron connection's stability and leakproofness to reduce the slot under impurity entering apron, and then effectively reduced tunnel disease problem.
To this end, according to a first aspect of the invention, a cover plate for a railway tunnel is proposed, comprising: a body panel configured in a rectangular shape; the reinforcing ribs are arranged on the main body panel and comprise a plurality of first rib plates and second rib plates which are arranged on one surface of the main body panel in a crossing manner; wherein, the apron both ends are equipped with first connector and second connector respectively, and is adjacent pass through between the apron first connector and the second connector adaptation installation form the connection.
In a preferred embodiment, the first connector is configured as a positive step lap joint and the second connector is configured as a negative step lap joint, adjacent cover plates being joined by the positive step lap joint and the negative step lap joint being adapted to be pressed together.
In a preferred embodiment, the first rib is disposed perpendicularly to the second rib, and the first rib extends longitudinally along the main body panel and is uniformly spaced apart in the lateral direction, and the second rib extends transversely along the main body panel and is uniformly spaced apart in the longitudinal direction.
In a preferred embodiment, the distance between adjacent first rib plates is set to 40-60mm, and the distance between adjacent second rib plates is set to 40-60mm.
In a preferred embodiment, the thickness of the first rib plate and the second rib plate is set to be 3-5mm, and the height is set to be 45-50mm.
In a preferred embodiment, the bearing load of the cover plate is not less than 6KN.
In a preferred embodiment, a moisture barrier is provided on the end face of the stiffener opposite to the main body panel, and the moisture barrier is made of graphene fiber reinforced composite material.
In a preferred embodiment, a fireproof insulation layer is arranged between the reinforcing ribs and the moisture barrier.
In a preferred embodiment, the fireproof heat-insulating layer is a rock wool layer, and the thickness of the rock wool layer is set to be not less than 20mm.
According to a second aspect of the present invention, there is provided a method of installing a cover plate as described above, comprising the steps of:
cleaning a groove at a mounting point of a cover plate, and adjusting the flatness of the top end of the groove;
the cover plates are sequentially arranged, and the transverse central lines of the cover plates are aligned with the transverse central lines of the grooves, wherein the adjacent cover plates are in fit lap joint with the second joints through the corresponding first joints, and the lap joint length is not less than 90% of the joint length;
and checking the flatness of the top surface of the installed cover plate, and adjusting the single angle position of the uneven part.
Drawings
The present invention will be described below with reference to the accompanying drawings.
Fig. 1 shows a perspective structure of a cover plate for a railway tunnel according to the present invention.
FIG. 2 shows a distribution of one embodiment of the reinforcing ribs in the cover plate shown in FIG. 1
Fig. 3 shows the connection structure of two adjacent cover plates as shown in fig. 1.
In this application, all of the figures are schematic drawings which are intended to illustrate the principles of the invention and are not to scale.
Detailed Description
The invention is described below with reference to the accompanying drawings.
In the present application, the direction along which the cover plate extends when mounted in the tunnel is defined as the "longitudinal direction", and the direction perpendicular to the direction along which the tunnel extends is defined as the "lateral direction".
In the construction of a railway tunnel, grooves for cable laying and for drainage are formed in both sides of the railway tunnel. These grooves are each constructed as an elongated groove, and the specifications of the grooves are fixed, and a cover plate according to the present invention is used to be mounted on top of the grooves to cover the grooves. Therefore, impurities entering the grooves below the cover plate are reduced, and the problem of tunnel defects is effectively reduced.
Fig. 1 shows a perspective structure of a cover plate 100 for a railway tunnel according to the present invention. As shown in fig. 1, the cover plate 100 includes a body panel 110. The body panel 110 is configured in a rectangular shape. In one embodiment, the body panel 110 is made of a graphene fiber reinforced composite material, wherein the graphene fiber reinforced composite material is formed by compounding graphene with resin and fiber, and is molded and processed by a high-temperature and high-pressure compounding process. The main body panel 100 has high structural strength and excellent chemical resistance, and can be suitable for various medium environments such as acid, alkali, salt and the like, so that the cover plate 100 has strong applicability. In addition, the main body panel 110 is made of graphene fiber reinforced composite material, so that the service life of the cover plate 100 is effectively prolonged.
According to the present invention, the length of the body panel 110 is set to be in the range of 700-1000mm, the width is set to be in the range of 400-600mm, and the thickness is set to be in the range of 50-60 mm. In a preferred embodiment, the body panel 110 is set to 800mm in length, 400mm in width, and 55mm in thickness. This size of the body panel 110 can effectively ensure the support performance of the body panel, and has strong applicability and convenient processing and manufacturing.
According to the present invention, a reinforcing rib 120 is provided on one side of the body panel 110. As shown in fig. 1 and 2, the reinforcing rib 120 includes a plurality of first and second rib plates 121 and 122 disposed to intersect on the body panel 110. The reinforcing ribs 120 can effectively enhance the supporting strength of the cover plate 100 and enhance the bearing capacity of the cover plate 100, thereby improving the supporting performance of the cover plate on the railway tunnel and the rigidity of the cover plate.
In the embodiment shown in fig. 2, the first rib 121 and the second rib 122 are vertically disposed, and the first rib 121 extends in the longitudinal direction of the body panel 110 and is uniformly spaced apart in the lateral direction, and the second rib 122 extends in the lateral direction of the body panel and is uniformly spaced apart in the longitudinal direction. According to the present invention, the pitch of the first rib plates 121 adjacent in the lateral direction is set to be in the range of 40-60mm, and the pitch of the second rib plates 122 adjacent in the longitudinal direction is set to be in the range of 40-60mm. The distributed structure of the first rib plate 121 and the second rib plate 122 can effectively enhance the supporting strength and the bearing capacity of the cover plate 100, and effectively improve the rigidity of the cover plate.
In an embodiment not shown, the first web 121 and the second web 122 may also be disposed at an angle to the first web 121. The distribution structure of the first rib plate 121 and the second rib plate 122 can effectively enhance the supporting strength and the bearing capacity of the cover plate 100, and effectively improve the rigidity of the cover plate.
According to the present invention, the thicknesses of the first rib 121 and the second rib 122 are each set to be in the range of 3-5mm, and the heights of the first rib 121 and the second rib 122 are set to be in the range of 45-50mm. Such dimensions of the first rib 121 and the second rib 122 can effectively enhance the structural strength of the cover plate 100 and can effectively secure the supporting rigidity of the cover plate 100.
According to the present invention, two ends of the cover plates 100 are respectively provided with a first connector 101 and a second connector 102, and the adjacent cover plates 100 are connected by the first connector 101 and the second connector 102 in an adapting way. As shown in fig. 1, the first connector 102 is configured as a positive step lap joint and the second connector 102 is configured as a negative step lap joint that can be mated with the first connector 102. The connecting joint structure of the cover plate 100 enables the paving construction to be convenient and rapid, the installation efficiency of the cover plate 100 is effectively improved, and the stability and the tightness of the connection between the cover plates 100 can be effectively ensured.
Fig. 3 shows a connection structure of two adjacent cover plates 100. The adjacent two cover plates 100 are fit-fitted by the first connector 101 and the second connector 102, thereby connecting the adjacent two cover plates 100. In one embodiment, the overlapping portions of adjacent cover plates 100 are sealed. Therefore, the connecting structure of the adjacent two cover plates 100 adopting the mutual pressure type of the positive step-shaped overlap joint and the negative step-shaped overlap joint effectively ensures the stability and the tightness of the connection between the cover plates 100, enhances the sealing performance of the cover plates 100, thereby reducing the impurity entering the groove under the cover plates and effectively reducing the tunnel defect problem. In addition, the laying construction of the cover plate 100 is convenient and quick, and the installation efficiency of the cover plate 100 is remarkably improved.
According to the present invention, the structure of the reinforcing ribs 120 of the cover plate 100 allows the cover plate 100 to have good structural strength, and to withstand a load of not less than 6KN.
When mounted, the face of the cover plate 100 not provided with the reinforcing ribs 120 is mounted upward, and the back face of the cover plate 100 (the face of the body panel 110 provided with the reinforcing ribs 120) is mounted downward. According to the present invention, a moisture barrier (not shown) is provided at the rear surface of the cover plate 100, and the moisture barrier is provided at the end surface of the reinforcing rib 120 opposite to the body panel 110. Preferably, the moisture barrier is made of graphene fiber reinforced composite material and is molded by a compression molding process. In one embodiment, the thickness of the moisture barrier is set to 2mm. The moisture-proof baffle can effectively prevent the heat insulation material from losing heat insulation property due to moisture, thereby ensuring the heat insulation property of the cover plate 100 and effectively reducing the tunnel defect problem.
In this embodiment, a fire-resistant insulating layer (not shown) is provided between the body panel 110 and the moisture barrier. Preferably, the fireproof heat-insulating layer is a rock wool layer, and the thickness of the rock wool layer is set to be not less than 20mm. The fireproof heat-insulating layer can effectively prevent fire, and the fireproof performance of the railway tunnel is effectively improved.
In one embodiment, embedded nuts (not shown) are arranged at the crossing positions of the first rib plate 121 and the second rib plate 122 on the back of the cover plate 100, and the moisture barrier and the fireproof insulation are fastened with the embedded nuts through screws so as to be fixed on the back of the cover plate 100.
According to the present invention, there is also provided a method of installing the cover plate 100 for a railway tunnel.
First, impurity cleaning is performed at the position of the groove where the cover plate 100 is to be installed, and the flatness of the groove top end of the cover plate installation point is adjusted. In one embodiment, mortar leveling may be used to achieve the decking requirements. Thereafter, the cover plates 100 are sequentially placed and alignment of the transverse center lines of the cover plates 100 with the transverse center lines of the grooves is ensured, wherein adjacent cover plates 100 are fittingly engaged with the second joints 122 through the corresponding first joints 121, preferably, the overlapping length is not less than 90% of the joint length. Then, the flatness of the top surface of the mounted cover plate 100 is checked, and single angular position adjustment is performed on the uneven portion, thereby completing the mounting of the cover plate 100.
The cover plate 100 for the railway tunnel is made of graphene fiber reinforced composite materials, is molded and processed through different high-temperature and high-pressure composite processes, and is provided with the reinforcing ribs 120, so that the cover plate 100 has the advantages of high structural strength, high supporting rigidity, high bearing capacity, long service life and the like. In addition, the cover plate 100 adopts a connecting structure of positive step-shaped overlap joint and negative step-shaped overlap joint mutual pressure, so that the stability and the tightness of the connection of the cover plate 100 are improved, impurities are reduced from entering the grooves below the cover plate, and the problem of tunnel defects is effectively reduced. The cover plate 100 is simple in structure, convenient to process and manufacture, low in manufacturing cost and convenient and fast to install and construct, and the installation efficiency of the cover plate 100 is effectively improved.
Finally, it should be noted that the above description is only of a preferred embodiment of the invention and is not to be construed as limiting the invention in any way. Although the invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the techniques described in the foregoing examples, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A cover plate for a railway tunnel, comprising:
a body panel (110) configured in a rectangular shape;
the reinforcing ribs (120) are arranged on the main body panel and comprise a plurality of first rib plates (121) and second rib plates (122) which are arranged on one surface of the main body panel in a crossing manner;
wherein, two ends of the cover plate are respectively provided with a first connector (101) and a second connector (102), adjacent cover plates are connected by the first connector and the second connector in an adaptive installation way,
the first connector is configured as a positive step-shaped overlap joint, the second connector is configured as a negative step-shaped overlap joint, adjacent cover plates are in fit press fit with the positive step-shaped overlap joint and the negative step-shaped overlap joint to form a connection,
the first rib plate and the second rib plate are vertically arranged, the first rib plate extends along the longitudinal direction of the main body panel and is uniformly distributed at intervals in the transverse direction, the second rib plate extends along the transverse direction of the main body panel and is uniformly distributed at intervals in the longitudinal direction,
the end face of the reinforcing rib, which is opposite to the main body panel, is provided with a moisture-proof baffle plate, the moisture-proof baffle plate is made of graphene fiber reinforced composite materials, and a fireproof heat-insulating layer is arranged between the reinforcing rib and the moisture-proof baffle plate.
2. The decking of claim 1, wherein the spacing between adjacent ones of the first gussets is set to 40-60mm and the spacing between adjacent ones of the second gussets is set to 40-60mm.
3. The decking of claim 2, wherein the first gusset and the second gusset are each set to a thickness of 3-5mm and a height of 45-50mm.
4. A cover plate according to any one of claims 1 to 3, wherein the cover plate has a bearing load of not less than 6KN.
5. A cover sheet according to any one of claims 1 to 3, wherein the fire-resistant insulating layer is a rock wool layer, and the thickness of the rock wool layer is set to be not less than 20mm.
6. A method of installing a cover plate according to any one of claims 1 to 5, comprising the steps of:
cleaning a groove at a mounting point of a cover plate, and adjusting the flatness of the top end of the groove;
the cover plates are sequentially arranged, and the transverse central lines of the cover plates are aligned with the transverse central lines of the grooves, wherein the adjacent cover plates are in fit lap joint with the second joints through the corresponding first joints, and the lap joint length is not less than 90% of the joint length;
and checking the flatness of the top surface of the installed cover plate, and adjusting the single angle position of the uneven part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591874.3A CN109440909B (en) | 2018-12-25 | 2018-12-25 | Cover plate for railway tunnel and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591874.3A CN109440909B (en) | 2018-12-25 | 2018-12-25 | Cover plate for railway tunnel and installation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109440909A CN109440909A (en) | 2019-03-08 |
| CN109440909B true CN109440909B (en) | 2024-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811591874.3A Active CN109440909B (en) | 2018-12-25 | 2018-12-25 | Cover plate for railway tunnel and installation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN109440909B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109980593A (en) * | 2019-04-30 | 2019-07-05 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of railway construction heat-preserving cover plate |
| CN109962439B (en) * | 2019-04-30 | 2024-05-24 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Weight-increasing cover plate for railway engineering |
| CN109950853B (en) * | 2019-04-30 | 2024-07-12 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Heat-preserving weight-increasing cover plate for railway engineering |
| CN110391632B (en) * | 2019-06-30 | 2021-04-23 | 国网山东省电力公司烟台供电公司 | Telescopic cable trench cover support frame |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005201848A1 (en) * | 2005-05-02 | 2006-11-16 | Onesteel Reinforcing Pty Ltd | A decking sheet |
| CN104309618A (en) * | 2014-11-05 | 2015-01-28 | 南车株洲电力机车有限公司 | Car body structure of light weight railway vehicle |
| CN206099264U (en) * | 2016-10-12 | 2017-04-12 | 广东电网有限责任公司电网规划研究中心 | Cable pit overlap joint apron and special opening tool thereof |
| CN107091105A (en) * | 2017-05-25 | 2017-08-25 | 上海隧道工程有限公司 | For realizing aerial steel platform and its construction method that interchange tunnels are continuously constructed |
| CN209509146U (en) * | 2018-12-25 | 2019-10-18 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of cover board for railway tunnel |
-
2018
- 2018-12-25 CN CN201811591874.3A patent/CN109440909B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005201848A1 (en) * | 2005-05-02 | 2006-11-16 | Onesteel Reinforcing Pty Ltd | A decking sheet |
| CN104309618A (en) * | 2014-11-05 | 2015-01-28 | 南车株洲电力机车有限公司 | Car body structure of light weight railway vehicle |
| CN206099264U (en) * | 2016-10-12 | 2017-04-12 | 广东电网有限责任公司电网规划研究中心 | Cable pit overlap joint apron and special opening tool thereof |
| CN107091105A (en) * | 2017-05-25 | 2017-08-25 | 上海隧道工程有限公司 | For realizing aerial steel platform and its construction method that interchange tunnels are continuously constructed |
| CN209509146U (en) * | 2018-12-25 | 2019-10-18 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of cover board for railway tunnel |
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| CN109440909A (en) | 2019-03-08 |
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