CN115613398A - Prefabricated track structure for built-in pump house section of track traffic and construction method - Google Patents
Prefabricated track structure for built-in pump house section of track traffic and construction method Download PDFInfo
- Publication number
- CN115613398A CN115613398A CN202211030155.0A CN202211030155A CN115613398A CN 115613398 A CN115613398 A CN 115613398A CN 202211030155 A CN202211030155 A CN 202211030155A CN 115613398 A CN115613398 A CN 115613398A
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- Prior art keywords
- prefabricated
- track
- plate
- shaped track
- shaped
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/008—Drainage of track
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
- E01B1/004—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with prefabricated elements embedded in fresh concrete or asphalt
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
- E01B2/003—Arrangement of tracks on bridges or in tunnels
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/005—Making of concrete parts of the track in situ
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/16—Transporting, laying, removing, or replacing rails; Moving rails placed on sleepers in the track
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Road Paving Structures (AREA)
Abstract
A track structure sequentially comprises a steel rail, fasteners, a prefabricated I-shaped track plate and a filling adjusting layer from top to bottom, wherein the steel rail is fixed on the upper surface of the prefabricated I-shaped track plate through the fasteners on two sides, the filling adjusting layer is arranged below the prefabricated I-shaped track plate, the prefabricated I-shaped track plate comprises a rail bearing platform and a prefabricated plate which are integrally formed, the plane of the prefabricated I-shaped track plate is of an I-shaped structure, and the prefabricated I-shaped track plate is connected with the prefabricated I-shaped track plate through a cross beam; therefore, the invention is used in the field of rail transit, replaces the traditional cast-in-place built-in pump house road bed, has the characteristics of simple construction process, high construction speed, high construction precision, low labor intensity, good aesthetic property, good durability and the like, conforms to the current rail transit directions of environmental protection, high efficiency and disease reduction, and has great social benefit.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a prefabricated rail structure for a built-in pump house section of rail transit and a construction method.
Background
The built-in pump house section of the rail transit mainly adopts a cast-in-place concrete ballast bed at present, and has the problems of poor construction quality, high labor consumption, low construction speed, poor water pipe reservation precision, frequent water accumulation, generally poor ballast bed durability, easy occurrence of block falling, cracking and void of the ballast bed, large maintenance and repair workload after operation and the like.
Therefore, in view of the above defects, the designer of the invention researches and designs a prefabricated rail structure for a built-in pump room section of rail transit and a construction method thereof by taking into account experience and achievement of related industries for a long time through careful research and design so as to overcome the above defects.
Disclosure of Invention
The invention aims to provide a prefabricated track structure for a built-in pump house section of track traffic and a construction method, which can effectively solve the technical problems in the prior art: the existing cast-in-place track structure of the built-in pump house section has the problems of poor construction quality, high labor consumption, low construction speed and the like, and accumulated water often occurs due to poor reserved precision of a water passing pipe, so that the durability of a ballast bed is generally poor, diseases such as block falling, cracks, void and the like are easy to occur, and the maintenance workload after operation is very large.
In order to achieve the purpose, the invention discloses a prefabricated track structure for a built-in pump house section of track traffic, which sequentially comprises a steel rail, fasteners, a prefabricated I-shaped track plate and a filling adjusting layer from top to bottom, wherein the steel rail is fixed on the upper surface of the prefabricated I-shaped track plate through the fasteners on two sides, the filling adjusting layer is arranged below the prefabricated I-shaped track plate, and the prefabricated track structure is characterized in that:
prefabricated I shape track board includes rail bearing platform and prefabricated plate, both integrated into one piece, the plane of prefabricated I shape track board is I shape structure, adopts the crossbeam to connect in the middle of it, and the both ends of middle cross beam are U style of calligraphy opening to form the U type sump pit at middle part, the section of prefabricated I shape track board is the polygon, and both sides lower surface is equipped with the slope structure in order to strengthen the adaptability to the tunnel section, fill between the bottom of prefabricated I shape track board and the shield structure section of jurisdiction and fill the adjustment layer.
Wherein: and hoisting sleeves are respectively arranged on the plate sides of the prefabricated H-shaped track plate.
Wherein: the U-shaped open-ended top surface of prefabricated I-shaped track board sets up ditch cover plate and walks or the personnel evacuation under the emergency in order to be used for patrolling the way personnel.
Wherein: and sealing waterproof materials are arranged at the joints of the prefabricated H-shaped track plate and the filling adjusting layer and the joints of the filling adjusting layer and the shield segment for sealing.
Wherein: and water pipes are embedded at the bottoms of the filling adjusting layers below the middle cross beams of the prefabricated H-shaped track slabs so as to enable the U-shaped water collecting pits to be communicated with one another.
Wherein: and reinforcing steel bars are reserved or implanted at the bottom of the prefabricated I-shaped track plate.
Wherein: the filling adjusting layer is made of steel fiber fine aggregate concrete, self-compacting concrete or special mortar.
Wherein: the water passing pipe is circular or polygonal.
Also discloses a construction method of the prefabricated track structure for the track traffic built-in pump house section, which is characterized by comprising the following steps:
the method comprises the following steps: prefabricating a prefabricated H-shaped track plate, finishing track plate grinding tool machining, steel bar binding and prefabricated plate concrete pouring in a factory, and curing the track plate after prefabrication is finished to form a high-precision prefabricated H-shaped track plate;
step two: transporting and hoisting, namely transporting the prefabricated H-shaped track slab to a track laying operation surface and then roughly placing the prefabricated H-shaped track slab;
step three: performing fine adjustment on the prefabricated I-shaped track slab;
positioning and fixing the prefabricated H-shaped track plate, and supporting and fixing the precisely adjusted prefabricated H-shaped track plate by adopting a frame plate bracket;
step five: binding reinforcing steel bars and embedding a water pipe;
step six: the template around the pump pit is arranged at the bottom of the track plate;
step seven: filling and maintaining concrete in the filling adjusting layer;
step eight: mounting a fastener;
step nine: mounting a steel rail;
step ten: and (5) performing auxiliary construction.
According to the content, the prefabricated track structure for the track traffic built-in pump house section and the construction method have the following effects:
1. according to the prefabricated H-shaped track slab of the pump house section with the built-in track bed and the construction method, the reinforcement and the concrete pouring amount are greatly reduced.
2. The method has the characteristics of simple construction process, low labor intensity, high construction precision, high construction efficiency, good durability and the like, and solves the problems of various defects of the cast-in-place built-in pump house track structure.
3. The cast-in-place pump house road bed can effectively replace the traditional cast-in-place built-in pump house road bed, accords with the directions of environmental protection, high efficiency and disease reduction of the current rail transit, and has huge social benefits.
The details of the present invention can be obtained from the following description and the attached drawings.
Drawings
Fig. 1 shows a front view of the prefabricated rail structure for a rail transit built-in pump house section of the present invention.
Figure 2 shows a top view of the present invention.
Detailed Description
Referring to fig. 1 and 2, the prefabricated rail structure for the rail transit built-in pump house section is shown.
The prefabricated track structure for the built-in pump house section of the track traffic sequentially comprises a steel rail 1, fasteners 2, a prefabricated I-shaped track plate 3 and a filling adjusting layer 7 from top to bottom, wherein the steel rail 1 is fixed on the upper surface of the prefabricated I-shaped track plate 3 through the fasteners 2 on two sides, the filling adjusting layer 7 is arranged below the prefabricated I-shaped track plate 3, the prefabricated I-shaped track plate 3 comprises a rail bearing platform and a prefabricated plate which are integrally formed, the plane of the prefabricated I-shaped track plate 3 is of an I-shaped structure (as a top view of a drawing 2), the prefabricated I-shaped track plate is connected with the prefabricated I-shaped track plate by adopting a cross beam in the middle, two ends of the middle cross beam are provided with U-shaped openings, so that a U-shaped water collecting pit 8 in the middle is formed, the section of the prefabricated I-shaped track plate 3 is polygonal, and the lower surfaces on two sides are provided with slope surface structures to enhance adaptability to the section of a tunnel.
The prefabricated H-shaped track slab 3 is connected by adopting the cross beams, the appearance is similar to the H shape, the filling adjusting layer 7 is only poured at the lower part of the H-shaped structure, and is not poured within the U-shaped opening range at the two ends of the cross beams, so that equipment such as a water pump and the like can be arranged within the U-shaped structure range.
And a filling adjusting layer 7 is poured between the bottom of the prefabricated H-shaped track plate 3 and the shield segment, and the filling adjusting layer 7 is made of steel fiber fine aggregate concrete.
And hoisting sleeves 5 are respectively arranged on the plate sides of the prefabricated H-shaped track plate 3 and used for fixing the prefabricated H-shaped track plate 3.
And a ditch cover plate 4 is arranged on the top surface of the U-shaped opening of the prefabricated H-shaped track plate 3 so as to be used for walking the patrol personnel or evacuating the patrol personnel in emergency.
And sealing waterproof materials 6 are arranged at the joints of the prefabricated H-shaped track plate 3 and the filling adjusting layer 7 and the joints of the filling adjusting layer 7 and the shield segment for sealing.
And water pipes 9 are embedded at the bottoms of the filling adjusting layers 7 below the middle cross beams of the prefabricated H-shaped track slabs 3, so that the U-shaped water collecting pits 8 are communicated with each other.
The shield segment range at the bottom of the prefabricated H-shaped track plate 3 can be reserved or implanted with reinforcing steel bars, so that the connectivity of the track bed and the shield segment is enhanced.
The filling adjusting layer can be made of materials with good fluidity, such as steel fiber fine aggregate concrete, self-compacting concrete, special mortar and the like.
And devices for hoisting or fixing the track slab, such as hoisting sleeves, are arranged on the slab side or the upper surface of the prefabricated H-shaped track slab 3.
Wherein, the water pipe can be round or polygonal.
The construction method of the prefabricated track structure for the track traffic built-in pump house section mainly comprises the following steps:
the method comprises the following steps: and prefabricating the prefabricated I-shaped track plate 3. Finishing the grinding tool processing, the steel bar binding and the precast slab concrete pouring of the track slab in a factory, and carrying out track slab curing after the prefabrication is finished to form the high-precision prefabricated H-shaped track slab 3.
Step two: and (5) transporting and hoisting. The prefabricated H-shaped track slab 3 is conveyed to a construction site by an automobile, then the prefabricated H-shaped track slab 3 is conveyed to a track laying operation surface by a slab conveying vehicle, and the prefabricated H-shaped track slab is roughly laid after being conveyed to the track laying operation surface.
Step three: and (5) performing fine adjustment on the prefabricated H-shaped track plate 3. And a small gantry crane is adopted to finely adjust the prefabricated H-shaped track slab 3.
And fourthly, positioning and fixing the prefabricated H-shaped track plate 3. And supporting and fixing the precisely adjusted prefabricated H-shaped track plate 3 by adopting a frame plate bracket. Each prefabricated H-shaped track plate 3 is provided with 4 or more supporting points according to the requirement.
Step five: binding the steel bars and embedding the water pipe 9 in advance. And after the steel bars are bound, the water passing pipes are embedded in the cross beams of the prefabricated I-shaped track plates 3.
Step six: and the built-in pump pit at the bottom of the track plate is provided with templates at the periphery. And after the prefabricated H-shaped track plate 3 is fixed, the built-in pump room section pump pit template is installed.
Step seven: and (5) filling and curing concrete in the filling adjusting layer 7. And (4) pouring the filling adjusting layer 7 after accumulated water at the bottom of the slab is cleaned, and taking out the supporting device of the prefabricated slab erected in the fourth step after the strength of the filling adjusting layer 7 reaches a certain strength.
Step eight: and (6) mounting a fastener. After the filling adjustment layer 7 reaches a certain strength, the upper fastener is installed in the sequence of the elastic cushion plate under the iron cushion plate → the elastic cushion plate under the rail.
Step nine: and (5) installing the steel rail. The steel rail is moved to the working face by a rail transport vehicle, is unloaded to a mounting point by the transport vehicle and is scattered, is pushed into a rail bearing groove of a fastener iron base plate, and is provided with fastener parts such as a gauge block, a connecting bolt, an elastic strip and the like.
Step ten: and (5) performing auxiliary construction. And after the main structure is constructed, coating the waterproof material in the pump pit and installing the upper surface ditch cover plate.
Therefore, the invention is used in the field of rail transit, replaces the traditional cast-in-place built-in pump house road bed, has the characteristics of simple construction process, high construction speed, high construction precision, low labor intensity, good aesthetic property, good durability and the like, conforms to the current rail transit directions of environmental protection, high efficiency and disease reduction, and has great social benefit.
It should be apparent that the foregoing description and illustrations are by way of example only, and are not intended to limit the present disclosure, application or uses. While the embodiments have been described in the embodiments and depicted in the drawings, the present invention is not limited to the particular examples illustrated by the drawings and described in the embodiments as the best mode presently contemplated for carrying out the teachings of the present invention, and the scope of the present invention is intended to include any embodiments falling within the foregoing description and the appended claims.
Claims (9)
1. The utility model provides a built-in pump house of track traffic is prefabricated track structure for district contains rail, fastener, prefabricated I shape track board and packing adjustment layer down in proper order from last, the rail is fixed in the upper surface of prefabricated I shape track board through the fastener of both sides, the below of prefabricated I shape track board is equipped with packing adjustment layer, its characterized in that:
prefabricated I shape track board includes rail bearing platform and prefabricated plate, both integrated into one piece, the plane of prefabricated I shape track board is I shape structure, adopts the crossbeam to connect in the middle of it, and the both ends of middle cross beam are U style of calligraphy opening to form the U type sump pit at middle part, the section of prefabricated I shape track board is the polygon, and both sides lower surface is equipped with the slope structure in order to strengthen the adaptability to the tunnel section, fill between the bottom of prefabricated I shape track board and the shield structure section of jurisdiction and fill the adjustment layer.
2. The prefabricated track structure for the rail transit built-in pump room section as claimed in claim 1, wherein: and hoisting sleeves are respectively arranged on the side of the plate of the prefabricated H-shaped track plate.
3. The prefabricated track structure for the rail transit built-in pump room section as claimed in claim 1, wherein: the U-shaped open-ended top surface of prefabricated I-shaped track board sets up ditch cover plate and walks or the personnel evacuation under the emergency in order to be used for patrolling the way personnel.
4. The prefabricated track structure for the rail transit built-in pump room section as claimed in claim 1, wherein: and sealing waterproof materials are arranged at the joints of the prefabricated H-shaped track plate and the filling adjusting layer and the joints of the filling adjusting layer and the shield segment for sealing.
5. The prefabricated track structure for the rail transit built-in pump room section as claimed in claim 1, wherein: and water pipes are embedded at the bottoms of the filling adjusting layers below the middle cross beams of the prefabricated H-shaped track slabs so as to enable the U-shaped water collecting pits to be communicated with one another.
6. The prefabricated track structure for the rail transit built-in pump room section as claimed in claim 1, wherein: and reinforcing steel bars are reserved or implanted at the bottom of the prefabricated I-shaped track plate.
7. The prefabricated track structure for the rail transit built-in pump room section as claimed in claim 1, wherein: the filling adjusting layer is made of steel fiber fine aggregate concrete, self-compacting concrete or special mortar.
8. The prefabricated track structure for the rail transit built-in pump room section as claimed in claim 5, wherein: the water pipe is circular or polygonal.
9. A construction method of a prefabricated track structure for a track traffic built-in pump room section is characterized by comprising the following steps:
the method comprises the following steps: prefabricating a prefabricated H-shaped track plate, completing track plate grinding tool machining, steel bar binding and prefabricated plate concrete pouring in a factory, and performing track plate maintenance after prefabrication is completed to form a high-precision prefabricated H-shaped track plate;
step two: transporting and hoisting, namely transporting the prefabricated H-shaped track slab to a track laying operation surface and then performing rough placement;
step three: performing fine adjustment on the prefabricated I-shaped track slab;
positioning and fixing the prefabricated H-shaped track plate, and supporting and fixing the precisely adjusted prefabricated H-shaped track plate by adopting a frame plate bracket;
step five: binding reinforcing steel bars and embedding a water pipe;
step six: the template is arranged around the pump pit arranged in the bottom of the track plate;
step seven: filling and maintaining concrete in the filling adjusting layer;
step eight: mounting a fastener;
step nine: mounting a steel rail;
step ten: and (5) performing auxiliary construction.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211030155.0A CN115613398B (en) | 2022-08-26 | 2022-08-26 | Prefabricated track structure for track traffic built-in pump house section and construction method |
| PCT/CN2023/095517 WO2024041054A1 (en) | 2022-08-26 | 2023-05-22 | Prefabricated track structure for built-in pump house section in rail transportation and construction method |
| EP23800304.0A EP4350074A1 (en) | 2022-08-26 | 2023-05-22 | Prefabricated track structure for built-in pump house section in rail transportation and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211030155.0A CN115613398B (en) | 2022-08-26 | 2022-08-26 | Prefabricated track structure for track traffic built-in pump house section and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115613398A true CN115613398A (en) | 2023-01-17 |
| CN115613398B CN115613398B (en) | 2023-10-10 |
Family
ID=84856839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211030155.0A Active CN115613398B (en) | 2022-08-26 | 2022-08-26 | Prefabricated track structure for track traffic built-in pump house section and construction method |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4350074A1 (en) |
| CN (1) | CN115613398B (en) |
| WO (1) | WO2024041054A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041054A1 (en) * | 2022-08-26 | 2024-02-29 | 北京城建设计发展集团股份有限公司 | Prefabricated track structure for built-in pump house section in rail transportation and construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205474612U (en) * | 2016-03-01 | 2016-08-17 | 北京城建设计发展集团股份有限公司 | Prefabricated track board of H type for urban rail transit |
| CN210561479U (en) * | 2019-08-06 | 2020-05-19 | 中铁工程设计咨询集团有限公司 | Plate type ballast bed structure for built-in pump room of subway |
| CN214362569U (en) * | 2020-12-07 | 2021-10-08 | 中铁上海设计院集团有限公司 | Prefabricated ballast bed structure of built-in pump house department for urban rail transit |
| CN215329049U (en) * | 2021-08-05 | 2021-12-28 | 中铁二院工程集团有限责任公司 | Track structure with drainage pump station in integral ballast bed |
| CN114183197A (en) * | 2021-11-15 | 2022-03-15 | 粤水电建筑安装建设有限公司 | Interval tunnel of urban rail transit is with built-in pump house |
| CN114808555A (en) * | 2022-06-17 | 2022-07-29 | 中铁上海设计院集团有限公司 | Prefabricated frame plate and application method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6316101B2 (en) * | 2014-06-03 | 2018-04-25 | 大成建設株式会社 | Railroad track and its construction method |
| CN115613398B (en) * | 2022-08-26 | 2023-10-10 | 北京城建设计发展集团股份有限公司 | Prefabricated track structure for track traffic built-in pump house section and construction method |
-
2022
- 2022-08-26 CN CN202211030155.0A patent/CN115613398B/en active Active
-
2023
- 2023-05-22 EP EP23800304.0A patent/EP4350074A1/en active Pending
- 2023-05-22 WO PCT/CN2023/095517 patent/WO2024041054A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205474612U (en) * | 2016-03-01 | 2016-08-17 | 北京城建设计发展集团股份有限公司 | Prefabricated track board of H type for urban rail transit |
| CN210561479U (en) * | 2019-08-06 | 2020-05-19 | 中铁工程设计咨询集团有限公司 | Plate type ballast bed structure for built-in pump room of subway |
| CN214362569U (en) * | 2020-12-07 | 2021-10-08 | 中铁上海设计院集团有限公司 | Prefabricated ballast bed structure of built-in pump house department for urban rail transit |
| CN215329049U (en) * | 2021-08-05 | 2021-12-28 | 中铁二院工程集团有限责任公司 | Track structure with drainage pump station in integral ballast bed |
| CN114183197A (en) * | 2021-11-15 | 2022-03-15 | 粤水电建筑安装建设有限公司 | Interval tunnel of urban rail transit is with built-in pump house |
| CN114808555A (en) * | 2022-06-17 | 2022-07-29 | 中铁上海设计院集团有限公司 | Prefabricated frame plate and application method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041054A1 (en) * | 2022-08-26 | 2024-02-29 | 北京城建设计发展集团股份有限公司 | Prefabricated track structure for built-in pump house section in rail transportation and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024041054A1 (en) | 2024-02-29 |
| EP4350074A1 (en) | 2024-04-10 |
| CN115613398B (en) | 2023-10-10 |
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