CN115262291A - Structure for embedding railway ballast retaining wall into concrete pavement and construction method - Google Patents
Structure for embedding railway ballast retaining wall into concrete pavement and construction method Download PDFInfo
- Publication number
- CN115262291A CN115262291A CN202210948133.6A CN202210948133A CN115262291A CN 115262291 A CN115262291 A CN 115262291A CN 202210948133 A CN202210948133 A CN 202210948133A CN 115262291 A CN115262291 A CN 115262291A
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- concrete
- ballast
- retaining wall
- railway
- concrete pavement
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- 238000010276 construction Methods 0.000 title claims abstract description 19
- 230000000903 blocking effect Effects 0.000 claims abstract description 34
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000001413 cellular effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
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Classifications
-
- 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
- E01B1/001—Track with ballast
-
- 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
- E01B37/00—Making, maintaining, renewing, or taking-up the ballastway or the track, not provided for in a single one of groups E01B27/00 - E01B35/00
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a structure for embedding a railway ballast retaining wall into a concrete pavement and a construction method, wherein the structure comprises the concrete pavement, the concrete ballast retaining wall, a steel bar net of the ballast retaining wall and an oil felt; the concrete ballast blocking wall is located on the outer side of a railway ballast, the lower portion of the concrete ballast blocking wall and the concrete pavement are integrally cast and formed, the concrete pavement and the whole section of the concrete ballast blocking wall are L-shaped, the upper portion of a reinforcing steel bar net of the ballast blocking wall is embedded into the concrete ballast blocking wall, the lower portion of the reinforcing steel bar net of the ballast blocking wall is embedded into the concrete pavement, a broken joint is arranged on the concrete ballast blocking wall along the length direction, and the oil felts are arranged in the broken joint. According to the invention, the concrete pavement and the concrete ballast retaining wall are organically connected together to form a whole with good structure and stability, so that the cargo loading and unloading operation in a cargo yard can be better met, and meanwhile, the concrete ballast retaining wall has good integrity and attractiveness, avoids rainwater from permeating the foundation, prevents unstable structure, reduces maintenance tasks, saves cost and the like.
Description
Technical Field
The invention relates to the technical field of railway station facilities, in particular to a structure for embedding a railway ballast retaining wall into a concrete pavement and a construction method.
Background
At present, in the technical field of railway station facilities in China, cargo loading and unloading tasks in a goods yard are more and more frequent, and the requirements are higher, wherein a ballast blocking wall arranged for meeting the operation of a forklift truck mainly adopts a brick-built structure, so that the problems of poor structural integrity, poor stability and poor attractiveness, serious maintenance and repair cost expenditure in the year round and the like are also faced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a structure for embedding a railway ballast retaining wall into a concrete pavement and a construction method, which are suitable for the design and construction of a goods yard in the technical field of railway station facilities in China, can better meet the loading and unloading operation of goods in the goods yard, and simultaneously have good integrity and aesthetic property, prevent rainwater from permeating a foundation, prevent unstable structure, reduce maintenance tasks, save cost and the like.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a structure for embedding a railway ballast retaining wall into a concrete pavement comprises the concrete pavement, the concrete ballast retaining wall, a steel bar net of the ballast retaining wall and an oil felt; the concrete ballast blocking wall is located on the outer side of a railway ballast, the lower portion of the concrete ballast blocking wall and the concrete pavement are integrally cast and formed, after pavement construction is finished, the rest part of the upper portion of the concrete ballast blocking wall is cast in place, the concrete pavement and the whole section of the concrete ballast blocking wall form an L shape, the upper portion of a steel bar net of the ballast blocking wall is embedded into the concrete ballast blocking wall, the lower portion of the steel bar net of the ballast blocking wall is embedded into the concrete pavement, the concrete ballast blocking wall is provided with a broken joint along the length direction, and the oil felt is arranged in the broken joint.
Further, the concrete ballast retaining wall is formed by pouring concrete with the same mark number as the concrete pavement.
Further, the distance between the outer edge of the concrete ballast retaining wall and the central line of the railway line is 1.8m.
Further, the height of the concrete ballast retaining wall is 41cm, and the width of the concrete ballast retaining wall is 20cm.
Furthermore, the depth of the reinforcing mesh of the ballast retaining wall embedded into the concrete pavement is 25cm.
Furthermore, the reinforcing mesh of the ballast retaining wall is formed by binding and welding a stirrup, a parallel connecting reinforcing bar and a vertical connecting reinforcing bar; the stirrups are arranged at intervals of 10cm in the direction perpendicular to the railway, are rectangular in structure and are made of phi 12HRB400; the parallel connecting steel bars are arranged in parallel to the railway direction and are made of phi 10HPB300; the vertical connecting steel bars are arranged at intervals of 10cm in the direction perpendicular to the railway and are made of phi 10HPB300.
A construction method for a structure of a railway ballast retaining wall embedded in a concrete pavement comprises any one of the structures, and the method comprises the following steps:
the method comprises the following steps: leveling the field, and entering the material field;
step two: cutting reinforcing steel bars according to a set size, binding and fixing phi 12 reinforcing steel bars into a rectangle according to requirements, welding the rectangle with phi 10 reinforcing steel bars, manufacturing a reinforcing steel bar net of the ballast retaining wall, and integrally moving the reinforcing steel bar net to the design position of the concrete ballast retaining wall;
step three: pouring the concrete pavement from one side far away from the central line of the railway line to the central line side of the railway line until the concrete ballast retaining wall with the height of 10cm is formed, and after the concrete pavement construction is finished, casting the rest part of the concrete ballast retaining wall in a cast-in-place mode;
step four: setting 2cm wide broken seams every 3m or so, and filling the broken seams with the felt;
step five: can be put into operation and use after being maintained for fourteen days.
Furthermore, the concrete must be sufficiently vibrated to prevent the occurrence of the cellular pitted surface.
The invention has the following beneficial effects:
(1) The invention provides a structure for embedding a railway ballast retaining wall into a concrete pavement, which solves the problems of poor structural integrity, poor stability and aesthetic property, serious annual maintenance and repair cost expenditure and the like of the existing brick-laid ballast retaining wall, is suitable for goods yard design and construction in the technical field of railway station facilities in China, can better meet the goods loading and unloading operation in the goods yard, has good integrity and aesthetic property, avoids rainwater from permeating a foundation, prevents unstable structure, reduces maintenance tasks, saves cost expenditure and the like.
(2) The invention provides a construction method of a structure for embedding a railway ballast retaining wall into a concrete pavement, which organically connects the concrete pavement and the concrete ballast retaining wall together by presetting a reinforcing mesh and cast-in-place concrete, forms a whole with good structure and stability, better protects and supports a railway subgrade and railway ballast, and ensures the normal operation of a railway and the orderly and safe development of goods yard operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an elevation view of a concrete retaining wall structure;
FIG. 3 is a first structural section view of a railway ballast retaining wall embedded in a concrete pavement;
FIG. 4 is a structural section view II of a railway ballast retaining wall embedded in a concrete pavement;
fig. 5 is a schematic structural view of the stirrup.
Description of reference numerals:
1. concrete pavement; 2. concrete ballast retaining walls; 3. a reinforcing mesh of the ballast retaining wall; 31. hooping; 32. connecting the steel bars in parallel; 33. vertically connecting the reinforcing steel bars; 4. a felt; 5. railway ballast; 6. a railway line centerline.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Example 1
The embodiment provides a structure for embedding a railway ballast retaining wall into a concrete pavement, and as shown in fig. 1 to 5, the structure for embedding the railway ballast retaining wall into the concrete pavement comprises a concrete pavement 1, a concrete ballast retaining wall 2, a ballast retaining wall reinforcing mesh 3 and an oil felt 4; the concrete ballast blocking wall 2 is located on the outer side of a railway ballast 5, the lower portion of the concrete ballast blocking wall 2 and the concrete pavement 1 are integrally cast and formed, after pavement construction is finished, the rest part of the upper portion of the concrete ballast blocking wall 2 is cast in place, the concrete pavement 1 and the concrete ballast blocking wall 2 are integrally formed into an L shape in section, the upper portion of a ballast blocking wall reinforcing steel bar net 3 is embedded into the concrete ballast blocking wall 2, the lower portion of the ballast blocking wall reinforcing steel bar net 3 is embedded into the concrete pavement 1, a broken seam is arranged on the concrete ballast blocking wall 2 along the length direction, and the oil felt 4 is arranged in the broken seam.
Further, the concrete ballast retaining wall 2 is formed by pouring concrete with the same reference number as that of the concrete pavement 1.
Further, the distance between the outer edge of the concrete ballast retaining wall 2 and the central line 6 of the railway line is 1.8m.
Further, the height of the concrete ballast retaining wall 2 is 41cm, and the width thereof is 20cm.
Further, the depth of embedding the steel bar net 3 of the ballast retaining wall into the concrete pavement 1 is 25cm.
Further, the reinforcing mesh 3 of the ballast retaining wall is formed by binding and welding stirrups 31, parallel connecting reinforcements 32 and vertical connecting reinforcements 33; the stirrups 31 are arranged perpendicular to the railway direction at intervals of 10cm, are rectangular in structure and are made of phi 12HRB400; the parallel connecting steel bars 32 are arranged in parallel to the railway direction and are made of phi 10HPB300; the vertical connecting steel bars 33 are arranged at intervals of 10cm in the direction perpendicular to the railway and are made of phi 10HPB300.
The invention provides a structure for embedding a railway ballast retaining wall into a concrete pavement, which solves the problems of poor structural integrity, poor stability and aesthetic property, serious annual maintenance and repair cost expenditure and the like of the existing brick-laid ballast retaining wall, is suitable for goods yard design and construction in the technical field of railway station facilities in China, can better meet the goods loading and unloading operation in the goods yard, has good integrity and aesthetic property, avoids rainwater from permeating a foundation, prevents unstable structure, reduces maintenance tasks, saves cost expenditure and the like.
Example 2
The embodiment provides a construction method for a structure of a railway ballast retaining wall embedded in a concrete pavement, which includes the structure of the railway ballast retaining wall embedded in the concrete pavement described in any one of the above embodiments 1, and the method includes the following steps:
the method comprises the following steps: leveling the field, and entering the material field;
step two: cutting reinforcing steel bars according to a set size, binding and fixing phi 12 reinforcing steel bars into a rectangle according to requirements, welding the rectangle with phi 10 reinforcing steel bars, manufacturing the reinforcing steel bar net 3 of the ballast retaining wall, and integrally moving the reinforcing steel bar net 3 to the design position of the concrete ballast retaining wall 2;
step three: pouring the concrete pavement 1 from one side far away from the central line 6 of the railway line to the side of the central line 6 of the railway line until the concrete ballast retaining wall 2 with the height of 10cm is formed, and after the construction of the concrete pavement 1 is finished, pouring the rest part of the concrete ballast retaining wall 2 in a cast-in-place mode;
step four: setting 2cm wide broken seams every 3m or so, and filling the broken seams with the felt 4;
step five: and the product can be put into operation after being maintained for fourteen days.
Furthermore, the concrete must be sufficiently vibrated to prevent the occurrence of the cellular pitted surface.
The invention provides a construction method of a structure for embedding a railway ballast retaining wall into a concrete pavement, which organically connects a concrete pavement 1 and a concrete ballast retaining wall 2 together by presetting a ballast retaining wall reinforcing mesh 3 and using cast-in-place concrete to form a whole with good structuredness and stability, better protects and supports a railway roadbed and railway ballast 5, and ensures the normal operation of a railway and the orderly and safe development of goods yard operation.
The embodiments of the present invention have been described in detail through the embodiments, but the description is only exemplary of the embodiments of the present invention and should not be construed as limiting the scope of the embodiments of the present invention. The scope of protection of the embodiments of the invention is defined by the claims. In the spirit and scope of the embodiments of the present invention, similar technical solutions are designed by those skilled in the art or those skilled in the art who have the technical solutions of the embodiments of the present invention will still fall within the scope of the patent coverage of the embodiments of the present invention.
Claims (8)
1. A structure for embedding a railway ballast retaining wall into a concrete pavement is characterized by comprising a concrete pavement (1), a concrete ballast retaining wall (2), a ballast retaining wall reinforcing steel bar net (3) and an oil felt (4); the concrete ballast blocking wall (2) is located on the outer side of a railway ballast (5), the lower portion of the concrete ballast blocking wall is integrally cast with the concrete pavement (1), after pavement construction is finished, the rest portion of the upper portion of the concrete ballast blocking wall (2) is cast in place, the concrete pavement (1) and the concrete ballast blocking wall (2) are integrally formed into an L shape in section, the upper portion of the ballast blocking wall steel bar net (3) is embedded into the concrete ballast blocking wall (2), the lower portion of the ballast blocking wall steel bar net (3) is embedded into the concrete pavement (1), a broken seam is formed in the concrete ballast blocking wall (2) along the length direction, and the oil felt (4) is arranged in the broken seam.
2. The structure for embedding the railway ballast retaining wall into the concrete pavement according to claim 1, wherein the concrete ballast retaining wall (2) is formed by pouring concrete with the same reference number as that of the concrete pavement (1).
3. The structure for embedding the railway ballast wall into the concrete pavement according to claim 1, wherein the distance from the outer edge of the concrete ballast wall (2) to the central line (6) of the railway line is 1.8m.
4. The structure for embedding the railway ballast retaining wall into the concrete pavement according to claim 1, wherein the height of the concrete ballast retaining wall (2) is 41cm, and the width of the concrete ballast retaining wall is 20cm.
5. The structure of embedding the railway ballast retaining wall into the concrete pavement according to claim 1, wherein the depth of embedding the ballast retaining wall reinforcing mesh (3) into the concrete pavement (1) is 25cm.
6. The structure for embedding the railway ballast wall into the concrete pavement according to claim 1, wherein the ballast wall reinforcing mesh (3) is formed by mutually binding and welding a hoop (31), parallel connecting steel bars (32) and vertical connecting steel bars (33); the stirrups (31) are arranged perpendicular to the railway direction at intervals of 10cm, are rectangular in structure and are made of phi 12HRB400; the parallel connecting steel bars (32) are arranged in parallel to the railway direction and are made of phi 10HPB300; the vertical connecting steel bars (33) are arranged at intervals of 10cm in the direction perpendicular to the railway and are made of phi 10HPB300.
7. A construction method for embedding a railway ballast retaining wall into a concrete pavement structure, which is characterized by comprising the structure of any one of claims 1 to 6, wherein the method comprises the following steps:
the method comprises the following steps: leveling the field and entering the material field;
step two: cutting reinforcing steel bars according to a set size, binding and fixing phi 12 reinforcing steel bars into a rectangle according to requirements, welding the rectangle with phi 10 reinforcing steel bars, manufacturing a reinforcing steel bar net (3) of the ballast retaining wall, and integrally moving the reinforcing steel bar net to the design position of the concrete ballast retaining wall (2);
step three: pouring the concrete pavement (1) from one side far away from the central line (6) of the railway line to the side of the central line (6) of the railway line until the concrete ballast blocking wall (2) with the height of 10cm is formed, and after the concrete pavement (1) is constructed, pouring the rest part of the concrete ballast blocking wall (2) in a cast-in-place mode;
step four: setting 2cm wide broken seams every 3m or so, and filling the broken seams with the felt (4);
step five: and the product can be put into operation after being maintained for fourteen days.
8. The construction method of the structure of the railway ballast retaining wall embedded in the concrete pavement according to claim 7, wherein the concrete is vibrated sufficiently to prevent a honeycomb pitted surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210948133.6A CN115262291A (en) | 2022-08-09 | 2022-08-09 | Structure for embedding railway ballast retaining wall into concrete pavement and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210948133.6A CN115262291A (en) | 2022-08-09 | 2022-08-09 | Structure for embedding railway ballast retaining wall into concrete pavement and construction method |
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| CN115262291A true CN115262291A (en) | 2022-11-01 |
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| CN202210948133.6A Pending CN115262291A (en) | 2022-08-09 | 2022-08-09 | Structure for embedding railway ballast retaining wall into concrete pavement and construction method |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493288A (en) * | 2011-11-29 | 2012-06-13 | 中铁第五勘察设计院集团有限公司 | Prefabricated L-shaped retaining structure |
| CN102877381A (en) * | 2012-11-02 | 2013-01-16 | 北京交通大学 | Integral ballast bed lateral restraining device |
| CN104195890A (en) * | 2014-08-13 | 2014-12-10 | 刘义安 | Railway solidified and closed ballast bed and solidification and closing method |
| CN205035703U (en) * | 2015-10-13 | 2016-02-17 | 铁道第三勘察设计院集团有限公司 | Prefabricated tiny fragments of stone, coal, etc. board that keeps off |
| CN105803924A (en) * | 2016-03-16 | 2016-07-27 | 中铁工程设计咨询集团有限公司 | Simply supported T beam sidewalk combination structure and combination method of mixed passenger and freight railway |
| CN208055762U (en) * | 2018-02-05 | 2018-11-06 | 石家庄铁道大学 | The subgrade reinforcing device of hump line line style is safeguarded in a kind of jacking bridge construction |
| CN109487641A (en) * | 2018-12-12 | 2019-03-19 | 中铁二院工程集团有限责任公司 | A kind of high-speed railway monoblock type cable slot structure and surface layer of subgrade bed construction method |
| CN110258190A (en) * | 2019-07-05 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | The general speed of one kind and heavy haul railway Wavelike steel webplate gear tiny fragments of stone, coal, etc. wall construction and its construction method |
| CN110984216A (en) * | 2019-11-22 | 2020-04-10 | 上海市建工设计研究总院有限公司 | Horizontal T-shaped reinforced concrete retaining wall and construction method thereof |
| CN111455737A (en) * | 2020-04-27 | 2020-07-28 | 中铁二院工程集团有限责任公司 | Wading railway roadbed structure and construction method thereof |
| CN112900482A (en) * | 2021-01-13 | 2021-06-04 | 中建一局集团第三建筑有限公司 | Assembled internal-pulling anchor type gravity retaining wall and construction method thereof |
| CN217104509U (en) * | 2022-01-04 | 2022-08-02 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Ballast retaining plate for roadbed with enhanced resistance |
-
2022
- 2022-08-09 CN CN202210948133.6A patent/CN115262291A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493288A (en) * | 2011-11-29 | 2012-06-13 | 中铁第五勘察设计院集团有限公司 | Prefabricated L-shaped retaining structure |
| CN102877381A (en) * | 2012-11-02 | 2013-01-16 | 北京交通大学 | Integral ballast bed lateral restraining device |
| CN104195890A (en) * | 2014-08-13 | 2014-12-10 | 刘义安 | Railway solidified and closed ballast bed and solidification and closing method |
| CN205035703U (en) * | 2015-10-13 | 2016-02-17 | 铁道第三勘察设计院集团有限公司 | Prefabricated tiny fragments of stone, coal, etc. board that keeps off |
| CN105803924A (en) * | 2016-03-16 | 2016-07-27 | 中铁工程设计咨询集团有限公司 | Simply supported T beam sidewalk combination structure and combination method of mixed passenger and freight railway |
| CN208055762U (en) * | 2018-02-05 | 2018-11-06 | 石家庄铁道大学 | The subgrade reinforcing device of hump line line style is safeguarded in a kind of jacking bridge construction |
| CN109487641A (en) * | 2018-12-12 | 2019-03-19 | 中铁二院工程集团有限责任公司 | A kind of high-speed railway monoblock type cable slot structure and surface layer of subgrade bed construction method |
| CN110258190A (en) * | 2019-07-05 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | The general speed of one kind and heavy haul railway Wavelike steel webplate gear tiny fragments of stone, coal, etc. wall construction and its construction method |
| CN110984216A (en) * | 2019-11-22 | 2020-04-10 | 上海市建工设计研究总院有限公司 | Horizontal T-shaped reinforced concrete retaining wall and construction method thereof |
| CN111455737A (en) * | 2020-04-27 | 2020-07-28 | 中铁二院工程集团有限责任公司 | Wading railway roadbed structure and construction method thereof |
| CN112900482A (en) * | 2021-01-13 | 2021-06-04 | 中建一局集团第三建筑有限公司 | Assembled internal-pulling anchor type gravity retaining wall and construction method thereof |
| CN217104509U (en) * | 2022-01-04 | 2022-08-02 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Ballast retaining plate for roadbed with enhanced resistance |
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