CN109962439B - Weight-increasing cover plate for railway engineering - Google Patents
Weight-increasing cover plate for railway engineering Download PDFInfo
- Publication number
- CN109962439B CN109962439B CN201910363438.9A CN201910363438A CN109962439B CN 109962439 B CN109962439 B CN 109962439B CN 201910363438 A CN201910363438 A CN 201910363438A CN 109962439 B CN109962439 B CN 109962439B
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- weight
- cover plate
- increasing layer
- reinforcing rib
- railway engineering
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 74
- 230000001965 increasing effect Effects 0.000 claims abstract description 49
- 238000009434 installation Methods 0.000 claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 230000004584 weight gain Effects 0.000 claims description 20
- 235000019786 weight gain Nutrition 0.000 claims description 20
- 239000004567 concrete Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 6
- 239000003733 fiber-reinforced composite Substances 0.000 abstract description 5
- 238000007723 die pressing method Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000006378 damage Effects 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 206010023230 Joint stiffness Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Classifications
-
- 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
-
- 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
- H02G9/025—Coverings therefor, e.g. tile
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a weight-increasing cover plate for railway engineering, wherein a reinforcing rib net consists of protruding reinforcing ribs which are fixedly connected to the bottom of a panel and criss-cross; a weight increasing layer installation groove is formed in the bottom of the reinforcing rib net, a connecting nut is embedded in the crossing joint of the reinforcing ribs in the weight increasing layer installation groove, and the weight increasing layer is positioned in the weight increasing layer installation groove; the backboard and the weight increasing layer are respectively provided with a bolt hole corresponding to the connecting nut, the connecting bolts penetrate through the threaded holes to be in threaded connection with the connecting nuts, and the backboard is used for blocking the weight increasing layer mounting groove; according to the invention, the panel, the reinforcing ribs and the backboard are formed by adopting the graphene fiber reinforced composite material through a high-temperature and high-pressure die pressing process, so that higher structural strength is ensured, the weight increasing effect can be realized by the arranged weight increasing layer, the cover plate has a larger carrying capacity and also has a certain dead weight, and the stability of the cover plate can be kept.
Description
Technical Field
The invention relates to the technical field of railway engineering, in particular to a weight-increasing cover plate for railway engineering.
Background
In recent years, high-speed railways in China rapidly develop, and a large number of branch railways, inter-city railways and subway lines are planned and built on the basis of the built large number of high-speed railway lines, so that the new trend of railway construction is about to be raised.
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.
At present, a cable trough cover plate of a railway prestressed concrete box beam is used as a pavement step plate, and a precast reinforced concrete slab, a precast RPC (reactive powder concrete) slab or a precast inorganic composite concrete slab is usually adopted. The concrete T-shaped beam sidewalk step plate mainly adopts precast reinforced concrete plates or steel plates, and the precast reinforced concrete plates are easy to crack, expose tendons, carbonize and the like, and have the defects of large weight, easy damage, poor sealing performance, poor integrity and the like.
The steel plate is easy to rust, the prefabricated RPC plate and the prefabricated inorganic composite concrete plate have high requirements on the manufacturing process, and the problems of insufficient strength, cracking or deformation and the like can occur when the quality is poor. In a word, the cable trough cover plate made of traditional materials is easy to deteriorate, the durability is poor, the weight of the traditional cover plate body is heavy, the periodic inspection, maintenance and repair are inconvenient, the cost of work management is high, and when the cover plate is problematic, the influence of blocking a tunnel groove, unsmooth drainage, personal injury, engineering mechanical damage and the like can be caused, so that secondary disasters such as foundation subsidence, ballast ice, influence on operation and the like are caused.
Meanwhile, the running speed of the existing railway is higher, when the train with higher speed passes through, a stronger negative pressure space is formed near the track, and the existence of a negative pressure environment often affects objects around the track, so that the dead weight of the cover plate also has certain requirements, the cover plate for railway engineering is required to have certain dead weight so as to resist the negative pressure attractive force generated when the train with high speed passes through, and the stability of the cover plate for railway engineering is kept, so that the requirements of normal service and safe operation of engineering such as railway tunnels, roadbeds, stations and bridges are met.
Therefore, how to provide a weight gain cover plate for railway engineering with high structural strength and large dead weight is a problem to be solved by the person skilled in the art.
Disclosure of Invention
In view of the above, the invention provides a weight-increasing cover plate for railway engineering, wherein a panel and a reinforcing rib are formed by adopting a graphene fiber reinforced composite material through a high-temperature and high-pressure mould pressing process, so that higher structural strength is ensured, the arranged weight-increasing layer can resist negative pressure attractive force generated when a high-speed train passes, and maintain self stability, so that the cover plate has higher carrying capacity and stronger self stability, and is suitable for being used in high-speed train building engineering occasions; when paving, the weight-increasing cover plates for adjacent two railway engineering are connected in a step-type overlapping way, so that the sealing performance is good.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A weight-increasing cover plate for railway engineering comprises a face plate, a reinforcing rib net, a weight-increasing layer and a back plate; wherein, the reinforcing rib net is composed of protruding reinforcing ribs which are fixedly connected to the bottom of the panel and criss-cross; a weight increasing layer installation groove is formed in the bottom of the reinforcing ribs positioned in the middle of the reinforcing rib net, connecting nuts are embedded in the crossing nodes of the reinforcing ribs positioned in the weight increasing layer installation groove, and the weight increasing layer is positioned in the weight increasing layer installation groove; the backboard and the weight increasing layer are respectively provided with a bolt hole corresponding to the connecting nut, the connecting bolts penetrate through the threaded holes to be in threaded connection with the connecting nuts, and the backboard is used for blocking the weight increasing layer mounting groove.
According to the invention, the panel is fixedly connected with the reinforcing rib net, the overall structural strength is enhanced through the support of the reinforcing rib net on the panel, so that the cover plate has higher carrying capacity, and the weight increasing layer mounting groove formed at the bottom of the reinforcing rib net can accommodate the weight increasing layer with good weight increasing effect, so that the cover plate realizes weight increasing function under the condition of not increasing the overall thickness of the cover plate; connecting nuts are pre-buried at the crossing joint of the reinforcing ribs in the weight-increasing layer mounting groove, the backboard is fixed on the opening of the weight-increasing layer mounting groove through the threaded connection of the connecting nuts and the connecting bolts, so that the notch of the weight-increasing layer mounting groove is blocked, the weight-increasing layer can be lifted below the panel and the reinforcing rib net, the weight-increasing layer can be sealed, weight-increasing layer residues are prevented from leaking out through gaps, and the weight-increasing effect is affected.
Preferably, in the weight gain cover plate for railway engineering, one side edge of the panel extends to form a step lap joint public edge, and the other opposite side edge of the panel is recessed inwards to form a step lap joint female edge matched with the step lap joint public edge.
The beneficial effects of adopting above technical scheme are: when paving, can realize the overlap joint between the weight gain apron for the adjacent railway engineering to have certain overlap joint leakproofness.
Preferably, in the weight-increasing cover plate for railway engineering, the back plate adopts a groove design with raised periphery, and the groove opening faces away from the weight-increasing layer.
The beneficial effects of adopting above technical scheme are: after the backboard is fixed through the connecting bolt, the protruding groove walls around the backboard can be tightly attached to the inner wall of the weight-increasing layer mounting groove, the weight-increasing layer mounting groove where the weight-increasing layer is located is sealed, and residues generated by friction or vibration and the like are prevented from leaking out through gaps in daily use of the weight-increasing layer, so that the weight-increasing effect is affected.
Preferably, in the weight gain cover plate for railway engineering, grooves corresponding to the raised reinforcing ribs are formed in the weight gain layer, so that the weight gain layer can be embedded into the reinforcing rib net.
The beneficial effects of adopting above technical scheme are: the weight increasing layer can be partially embedded into the reinforcing rib net, so that the slotting depth of the mounting slot of the weight increasing layer is reduced, and the influence of slotting on the reinforcing rib net on the structural strength of the reinforcing rib net is reduced.
Preferably, in the weight-increasing cover plate for railway engineering, the weight-increasing layer is made by solidifying concrete, so that the weight-increasing cover plate has good weight-increasing effect and is low in cost.
Preferably, in the weight gain cover plate for railway engineering, the reinforcing ribs are reinforcing ribs perpendicular to the panel, and the reinforcing ribs which are crisscrossed are perpendicular to each other.
The beneficial effects of adopting above technical scheme are: the structural strength of the reinforcing rib net and the panel is enhanced.
Preferably, in the weight-increasing cover plate for railway engineering, 9 groups of connecting bolts and 9 groups of connecting nuts are arranged in a matching way and are uniformly distributed on the back plate and the reinforcing rib net respectively, so that the weight-increasing layer and the back plate are uniformly stressed and stably connected.
Preferably, in the weight gain cover plate for railway engineering, the connecting bolt is a stainless steel bolt, and the connecting nut is a stainless steel nut, so that rust is prevented.
Preferably, in the weight gain cover plate for railway engineering, the reinforcing rib net and the panel are of an integrated structure, and have strong mechanical properties.
Preferably, in the weight gain cover plate for railway engineering, the reinforcing rib net, the face plate and the back plate are all integrally made of graphene fiber reinforced composite materials through a high-temperature high-pressure compression process.
Compared with the prior art, the invention discloses the weight-increasing cover plate for railway engineering, wherein the panel is fixedly connected with the reinforcing rib net, the reinforcing rib net is used for forcefully supporting the panel, the reinforcing ribs are reinforcing rib plates perpendicular to the panel, and the reinforcing rib plates crisscrossed vertically and horizontally are mutually perpendicular, so that the integral structural strength of the reinforcing rib net and the panel is enhanced, and the cover plate has higher carrying capacity; the weight increasing layer mounting groove arranged at the bottom of the reinforcing rib net can accommodate the weight increasing layer with good weight increasing effect, so that the cover plate has certain dead weight while having higher structural strength, and the stability of the cover plate is enhanced.
Under the condition that the whole thickness of the cover plate is not increased, the cover plate achieves the weight increasing effect, grooves corresponding to the protruding reinforcing ribs are formed in the weight increasing layer, the weight increasing layer can be partially embedded into the reinforcing rib net, the grooving depth of a mounting groove of the weight increasing layer is reduced, and the influence of grooving on the reinforcing rib net on the structural strength of the cover plate is reduced;
The connecting nuts are embedded at the crossing nodes of the reinforcing ribs in the weight-increasing layer mounting groove, the backboard is fixed on the opening of the weight-increasing layer mounting groove through the threaded connection of the connecting nuts and the connecting bolts, the notch of the weight-increasing layer mounting groove is blocked, the weight-increasing layer can be lifted below the panel and the reinforcing rib net, the weight-increasing layer can be sealed, the backboard adopts a peripheral protruding groove type design, the groove opening faces away from the weight-increasing layer, after the backboard is fixed through the connecting bolts, the peripheral protruding groove walls of the backboard can be tightly attached to the inner wall of the weight-increasing layer mounting groove, the weight-increasing layer mounting groove where the weight-increasing layer is located is sealed, weight-increasing layer residues are prevented from leaking out through gaps, and the weight-increasing effect is affected.
One side of the panel extends to form a step-type lap joint public edge, the other opposite side of the panel is inwards sunken to form a step-type lap joint female edge matched with the step-type lap joint public edge, and when paving, lap joint between the weight-increasing cover plates for adjacent railway engineering can be realized, and certain lap joint tightness is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a side view of the present invention;
FIG. 4 is a bottom view of the present invention;
FIG. 5 is a cross-sectional view of the present invention;
fig. 6 is an assembled view of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention discloses a weight-increasing cover plate for railway engineering, which is characterized in that a panel and reinforcing ribs are formed by adopting graphene fiber reinforced composite materials through a high-temperature and high-pressure die pressing process, so that higher structural strength is ensured, and an excellent weight-increasing effect can be realized by the arranged weight-increasing layer, so that the cover plate has a certain dead weight while having a larger carrying capacity, the stability of the cover plate is enhanced, and the cover plate is suitable for high-speed train building engineering; when paving, the weight-increasing cover plates for adjacent two railway engineering are connected in a step-type overlapping way, so that the sealing performance is good.
With reference to fig. 1-6, the embodiment of the invention discloses a weight-increasing cover plate for railway engineering, which comprises a face plate 1, a reinforcing rib net 2, a weight-increasing layer 3 and a back plate 4; wherein, the reinforcing rib net 2 is composed of protruding reinforcing ribs which are fixedly connected to the bottom of the panel 1 and criss-cross; the bottom of the reinforcing rib positioned in the middle of the reinforcing rib net 2 is provided with a weight increasing layer installation groove, a connecting nut is pre-embedded at a reinforcing rib intersection node positioned in the weight increasing layer installation groove, and the weight increasing layer 3 is positioned in the weight increasing layer installation groove; the backboard 4 and the weight increasing layer 3 are respectively provided with a bolt hole corresponding to the connecting nut, the connecting bolt 5 passes through the threaded hole to be in threaded connection with the connecting nut, and the weight increasing layer mounting groove is blocked through the backboard 4.
In order to further optimize the technical scheme, one side edge of the panel 1 extends to form a step-type lap joint public edge, and the other opposite side edge of the panel 1 is inwards recessed to form a step-type lap joint female edge matched with the step-type lap joint public edge.
The beneficial effects of adopting above technical scheme are: when paving, can realize the overlap joint between the weight gain apron for the adjacent railway engineering to have certain overlap joint leakproofness.
In order to further optimize the technical scheme, the back plate 4 adopts a groove type design with raised periphery, and the groove opening faces away from the weight layer 3.
The beneficial effects of adopting above technical scheme are: after the backboard 4 is fixed through the connecting bolt 5, the protruding groove walls around the backboard 4 can be tightly attached to the inner wall of the weight-increasing layer installation groove, the weight-increasing layer installation groove where the weight-increasing layer 3 is located is sealed, and residues on the weight-increasing layer are prevented from leaking out through gaps, so that the weight-increasing effect is influenced.
In order to further optimize the technical scheme, grooves corresponding to the raised reinforcing ribs are formed in the weight layer 3, so that the weight layer 3 can be embedded into the reinforcing rib net 2.
The beneficial effects of adopting above technical scheme are: the weight layer 3 can be embedded into the reinforcing rib net 2, so that the grooving depth of the weight layer installation groove is reduced, and the influence of grooving on the reinforcing rib net 2 on the structural strength of the reinforcing rib net is reduced.
In order to further optimize the technical scheme, the weight increasing layer 3 is manufactured by adopting concrete after solidification, so that the weight increasing layer has a good weight increasing effect and is low in cost.
In order to further optimize the technical scheme, the reinforcing ribs are reinforcing ribs perpendicular to the panel 1, and the criss-cross reinforcing ribs are perpendicular to each other.
The beneficial effects of adopting above technical scheme are: the structural strength of the reinforcing rib net 2 and the panel 1 is enhanced.
In order to further optimize the technical scheme, the connecting bolts 5 and the connecting nuts are provided with 9 groups in a matched mode, and are respectively and uniformly distributed on the back plate 4 and the reinforcing rib net 2, so that the stress of the weight-increasing layer 3 and the back plate 4 is uniform and the connection is stable.
In order to further optimize the technical scheme, the connecting bolt 5 is a stainless steel bolt, the connecting nut is a stainless steel nut, and corrosion is prevented.
In order to further optimize the technical scheme, the reinforcing rib net 2 and the panel 1 are of an integrated structure, and have strong mechanical properties.
In order to further optimize the technical scheme, the reinforcing rib net 2, the panel 1 and the backboard 4 are integrally manufactured by adopting a graphene fiber reinforced composite material through a high-temperature high-pressure compression process.
In order to further optimize the technical scheme, the weight of the weight increasing layer 3 is selected according to the actual use situation, a weight increasing layer with lighter weight is used for the occasion of the train speed of 200-300KM/h, a weight increasing layer with lighter weight is used for the occasion of the train speed of more than 300KM/h, and the weight of the weight increasing layer 3 is adjusted by adjusting the use amount of concrete when the weight increasing layer 3 is manufactured.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The weight-increasing cover plate for the railway engineering is characterized by comprising a panel, a reinforcing rib net, a weight-increasing layer and a back plate; wherein, the reinforcing rib net is composed of protruding reinforcing ribs which are fixedly connected to the bottom of the panel and criss-cross; a weight increasing layer installation groove is formed in the bottom of the reinforcing ribs positioned in the middle of the reinforcing rib net, connecting nuts are embedded in the crossing nodes of the reinforcing ribs positioned in the weight increasing layer installation groove, and the weight increasing layer is positioned in the weight increasing layer installation groove; the backboard and the weight increasing layer are respectively provided with a bolt hole corresponding to the connecting nut, the connecting bolts penetrate through the threaded holes to be in threaded connection with the connecting nuts, and the backboard is used for blocking the weight increasing layer mounting groove.
2. The weight gain cover for railway engineering according to claim 1, wherein one side of the panel extends to form a stepped overlap male edge, and the opposite side of the panel is recessed inwardly to form a stepped overlap female edge that fits the stepped overlap male edge.
3. The railroad engineering weight cover plate of claim 1, wherein the back plate is of a peripheral raised groove design and the groove opening faces away from the weight layer.
4. The weight gain cover plate for railway engineering according to claim 1, wherein grooves corresponding to the raised reinforcing ribs are formed in the weight gain layer, so that the weight gain layer can be embedded into the reinforcing rib net.
5. The weight cover plate for railway engineering according to claim 1, wherein the weight layer is made by solidifying concrete.
6. The weight gain cover plate for railway engineering according to claim 1, wherein the reinforcing ribs are reinforcing rib plates perpendicular to the face plates, and the reinforcing rib plates which are crisscrossed are perpendicular to each other.
7. The weight gain cover plate for railway engineering according to claim 1, wherein 9 groups of connecting bolts and connecting nuts are arranged in a matched mode and are uniformly distributed on the back plate and the reinforcing rib net respectively.
8. The weight gain cover for railway engineering according to claim 7, wherein the connecting bolt is a stainless steel bolt, and the connecting nut is a stainless steel nut.
9. The weight gain cover for railway engineering according to claim 1, wherein the reinforcing mesh and the panel are of an integral structure.
10. The weight gain cover plate for railway engineering according to claim 9, wherein the reinforcing rib net, the face plate and the back plate are all integrally manufactured by adopting graphene fiber composite materials through a mould pressing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910363438.9A CN109962439B (en) | 2019-04-30 | 2019-04-30 | Weight-increasing cover plate for railway engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910363438.9A CN109962439B (en) | 2019-04-30 | 2019-04-30 | Weight-increasing cover plate for railway engineering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109962439A CN109962439A (en) | 2019-07-02 |
| CN109962439B true CN109962439B (en) | 2024-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910363438.9A Active CN109962439B (en) | 2019-04-30 | 2019-04-30 | Weight-increasing cover plate for railway engineering |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203795267U (en) * | 2014-03-18 | 2014-08-27 | 中国建筑第七工程局有限公司 | Assembled type reusable temporary road plate |
| CN206364461U (en) * | 2017-01-10 | 2017-07-28 | 河北盛宝环保设备有限公司 | A kind of SMC railway cables groove |
| CN207853423U (en) * | 2018-01-26 | 2018-09-11 | 河北恒瑞复合材料有限公司 | A kind of railway cable trough cover boards that can also serve as sidewalk slab |
| CN109440909A (en) * | 2018-12-25 | 2019-03-08 | 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 and its installation method for railway tunnel |
| KR101934874B1 (en) * | 2018-03-27 | 2019-03-18 | 주식회사 씨알디 | Deck plate comprised of ultra high strength fiber reinforced concrete and construction method using thereof |
| CN209608295U (en) * | 2019-04-30 | 2019-11-08 | 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 weight gain cover board |
-
2019
- 2019-04-30 CN CN201910363438.9A patent/CN109962439B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203795267U (en) * | 2014-03-18 | 2014-08-27 | 中国建筑第七工程局有限公司 | Assembled type reusable temporary road plate |
| CN206364461U (en) * | 2017-01-10 | 2017-07-28 | 河北盛宝环保设备有限公司 | A kind of SMC railway cables groove |
| CN207853423U (en) * | 2018-01-26 | 2018-09-11 | 河北恒瑞复合材料有限公司 | A kind of railway cable trough cover boards that can also serve as sidewalk slab |
| KR101934874B1 (en) * | 2018-03-27 | 2019-03-18 | 주식회사 씨알디 | Deck plate comprised of ultra high strength fiber reinforced concrete and construction method using thereof |
| CN109440909A (en) * | 2018-12-25 | 2019-03-08 | 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 and its installation method for railway tunnel |
| CN209608295U (en) * | 2019-04-30 | 2019-11-08 | 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 weight gain cover board |
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| CN109962439A (en) | 2019-07-02 |
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