CN207452594U - A kind of urban track traffic prestressing force slab track - Google Patents

A kind of urban track traffic prestressing force slab track Download PDF

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Publication number
CN207452594U
CN207452594U CN201721232509.4U CN201721232509U CN207452594U CN 207452594 U CN207452594 U CN 207452594U CN 201721232509 U CN201721232509 U CN 201721232509U CN 207452594 U CN207452594 U CN 207452594U
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track
pedestal
self
prestressing force
compacting concrete
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伍卫凡
王伟华
李洪斌
张艳
王辉
张旭东
郭丽娜
赵华卫
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China Railway Design Corp
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China Railway Design Corp
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Abstract

The utility model discloses a kind of urban track traffic prestressing force slab track, wherein, on the basis of pedestal is located under line, self-compacting concrete is placed on the top of pedestal, separation layer is provided between the bottom surface of track plates and self-compacting concrete layer, track is provided with above track plates.Advantageous effect is:Using unit plate type non-fragment orbit, mechanical model and stress are clear, facilitate construction and repair;Track plates are designed according to two dimension prestressing, reduce structural crack, and durability is good;It realizes that 3 in Curve Segment orbit space is linear by adjusting mold track position, reduces scene adjustment workload;Self-compacting concrete layer is adaptable to infrastructure, eliminates part construction error;Utilizing works hole carries out structure /V between track plates and self-compacting concrete, simple in structure, is easy to maintenance;Levels are isolated, beneficial to the maintenance of special circumstances;It is divided into track plates and puts cushion blocking and can be adjusted to vibration damping type track structure.

Description

A kind of urban track traffic prestressing force slab track
Technical field
The utility model belongs to field of urban rail, board-like more particularly to a kind of urban track traffic prestressing force Track.
Background technology
The underground cable of countries in the world track traffic in recent years nearly all employs ballastless track bed.It is usually used in subway underground cable at present Railway roadbed pattern mainly include, one is the long sleeper type ballastless track bed of armored concrete, but long sleeper type ballastless track bed protrudes The problem of be long sleeper and segmentation of a large amount of crackles and sleeper on road bed board interface to road bed board, the whole of structure can be influenced Body and durability, and increase the maintenances workload such as ballastless track bed Crack Repairing.The second is short sleeper type ballastless track bed, but Short sleeper type ballastless track bed distinct issues are that rail cant is not easy to ensure, cause operation in wheel rail relation it is bad, influence train Stationarity and comfort, and increase the maintenances workload such as steel rail grinding and fastener adjustment.The third is double block type ballastless railway roadbed, Steel truss is being transported in installation process in the middle part of double-block type sleeper, once being collided with, will be deformed, so as to influence track laying Precision, and double block pillow also tends to some crackles occur with road bed board New-old concrete joint surface.
To sum up, above-mentioned several ballastless track beds there are the problem of can be summarized as the following aspects:(1) cast-in-place railway roadbed is used Structure, scene adjustment heavy workload, construction quality are difficult to control;(2) constructed using cast in situs, track construction precision is low; (3) using non-prestressed ballast bed structure, road bed board crackle is more and is difficult to control;(4) once there is disease, maintenanceability compared with Difference.
The content of the invention
Technical problem to be solved in the utility model is to overcome prior art insufficient, provide a kind of design rationally, apply Work, easy to maintain, durability is good, the simple prestressing force slab track of track dental lamina limit structure.
Technical solution is used by the utility model:A kind of urban track traffic prestressing force slab track, including rail Guidance tape, separation layer, self-compacting concrete layer and pedestal;On the basis of the pedestal is located under line, self-compacting concrete is placed on The top of pedestal is provided with separation layer, is provided with and holds above track plates between the bottom surface of track plates and self-compacting concrete layer Rail platform.
Reinforcing bar is embedded in pedestal, pre-buried reinforcing bar is higher by pedestal, and self-compacting concrete layer is embedded in the pre-buried steel of pedestal Muscle enhances the connection between pedestal and self-compacting concrete layer.
Pedestal is longitudinally unit fraction block structure along circuit, and adjacent pans unit is equipped with expansion joint, and each unit base is long It spends for the corresponding length of three to four pieces of track plates.
It is provided with to be perfused the grout hole, gas vent and peep hole of self-compacting concrete on track plates, and is filling respectively The hole position in slurry hole, gas vent and peep hole is formed with the boss of self-compacting concrete, the height of boss and the height phase of track plates Together, boss is used for the structure /V of track plates.
Elastic isolation material is provided between the inside circumference of boss and track plates contact surface.
Track plates are bidirectional pre-tensioned prestressed reinforced concrete construction;The material of separation layer for geotextiles, non-woven fabrics, plastic cloth or Release coating;Pedestal is reinforced concrete structure;Track is non-shoulder track.
Track plates are linear by adjusting the realization of mold track position in the space of 3 in Curve Segment.
The both sides of track plates are embedded with drainage terminal and lifting casing respectively;Plate stitch is equipped between adjacent orbit plate.
Cushion layer can be set under track plates.
The beneficial effects of the utility model are:Using unit plate type non-fragment orbit, mechanical model and stress are clear, conveniently apply Work and repair;Track plates are designed according to two dimension prestressing, can effectively reduce the crackle of structure, and durability is good;By adjusting mold Track position realizes that 3 in Curve Segment orbit space is linear, reduces scene adjustment workload, improves site operation efficiency;It is suitable for The fastener of the various non-shoulders of railway traffic engineering;Self-compacting concrete layer is adaptable to infrastructure, can eliminate part and construct Error;Structure /V is carried out using grout hole, gas vent and peep hole between track plates and self-compacting concrete, it is simple in structure, And it is easy to maintenance;Levels are isolated, and are conducive to maintenance in special circumstances;It is divided into track plates and puts cushion blocking It is adjusted to vibration damping type track structure;Meet the drainage requirement of railway traffic engineering stray electrical current.
Description of the drawings
Fig. 1 is the section structure diagram of the utility model prestressing force slab track;
Fig. 2 is the plan view of the utility model prestressing force slab track;
Fig. 3 is the structure diagram of self-compacting concrete layer and boss in the utility model.
In figure:
1. 2. separation layer of track plates, 3. self-compacting concrete layer, 4. pedestal
5. 6. boss of track, 7. elastic isolation material, 8. lateral ditch
9. 11. drainage terminal of gas vent and 10. grout hole of peep hole
12. lift by crane 13. reinforced mesh of casing.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description:
As shown in Figure 1, the utility model urban track traffic Prefabricated slab type track includes track plates 1, separation layer 2, from close Real concrete layer 3 and pedestal 4.The pedestal 4 is located on track foundation, is reinforced concrete structure, steel is embedded in pedestal 4 Muscle, pre-buried reinforcing bar are higher by pedestal 4, and self-compacting concrete layer 3 is embedded in the embedded bar of pedestal, and enhancing pedestal 4 is mixed with self-compaction Connection between solidifying soil layer 3.Track 5 is provided on the surface of track plates 1, track 5 is non-shoulder track, suitable for city The fastener of city's railway traffic engineering.
It is provided with to be perfused the grout hole 10, gas vent and peep hole 9 of self-compacting concrete on the track plates 1, it is existing During construction, from concrete perfusion at grout hole 10, so as to obtain self-compacting concrete layer 3, and by grout hole 10, gas vent It is filled and led up with peep hole 9 so that self-compacting concrete layer 3 accordingly forms boss 6 in grout hole 10, gas vent and peep hole 9, convex Platform 6 is identical with grout hole 10, gas vent and 9 shape of peep hole, and boss 6 passes through limiting device of the track plate face as track plates 1, Keep the correct track geometry of track, ensure effective transmission of train load, temperature load etc., and can obtain track plates 1 with Soap-free emulsion polymeization design between self-compacting concrete layer 3, further improves the stability of track structure, while is limited using boss Position, it is simple in structure, it is easy to maintenance.
Elastic isolation material 7 is set between 1 contact surface of positive stop lug boss 6 and track plates, it is preferable that elastic material 7 is rubber Elastic material.Material in this is only illustrative, and elastic isolation material 7 is without being limited thereto, may be employed commonly used in the art any Elastic material.By setting elastic isolation material 7 between track plates 1 and positive stop lug boss 6 so that positive stop lug boss 6 and track plates 1 Between form flexible clamping, when avoiding the track plates 1 relative deformation occurs with self-compacting concrete layer 3, track structure is caused It destroys, while track vibration can also be reduced.
Be provided with separation layer 2 between the bottom surface of track plates 1 and self-compacting concrete layer 3, separation layer 2 can by geotextiles, Non-woven fabrics, plastic cloth or release coating are formed, but the material of separation layer 2 is without being limited thereto.In track plates 1 and self-compacting concrete Separation layer 2 is set between layer 3, and levels isolation is conducive to maintenance in special circumstances.
Since corresponding surface is plane between the self-compacting concrete layer 3 of the utility model and track plates 1 so that self-compaction mixes Solidifying is two layers be separated from each other between soil layer 3 and track plates 1, with pre-buried door rebar and self-compacting concrete under existing track plates It is connected as an overall structure to compare, the utility model can reduce 3 tension stress of self-compacting concrete layer, and track plates 1 are held By the tensile stress of bigger, the function of the big rigidity of high intensity of track plates 1 can be given full play to.Self-compacting concrete layer is to infrastructure It is adaptable, part construction error can be eliminated.
Plate stitch is equipped between adjacent orbit plate 1, and without any connection or packing material between adjacent track plates 1, in addition, Pedestal 4 is along longitudinal direction unit fraction block structure, and adjacent pans unit is equipped with expansion joint, and each unit base length can be three to four 1 corresponding length of block track plates.This unit sectional type design of pedestal 4 can reduce concrete bed 4 and irregularly crack, and improve The durability of pedestal 4, and track plates 1, self-compacting concrete layer 3 and pedestal 4 are layered structure, and track plates 1 and self-compaction Non-binding between concrete layer 3 makes structure stress more reasonable, can improve the durability of spacer structure.
Track plates 1 are linear by adjusting mold track position realization 3 in Curve Segment orbit space in the space of 3 in Curve Segment It is linear, scene adjustment workload is reduced, improves site operation efficiency;It is in-orbit when track structure is used to have the location of damping requirements 1 time setting cushion layer of guidance tape.
As shown in Figure 1.Lateral ditch 8 is respectively arranged in the both sides of pedestal 4, for concentrating waste water in discharge tunnel.
As shown in Fig. 2, it is embedded with drainage terminal 11 and lifting casing 12, wherein drainage respectively in the both sides of track plates 1 Terminal 11 meets the drainage requirement of railway traffic engineering, lifting of the lifting casing 12 as track plates for discharging stray electrical current Position, convenient for the lifting of track plates.
As shown in figure 3, individual layer reinforced mesh 13 is provided in self-compacting concrete layer 3, along individual layer reinforced mesh 13 Road direction is arranged, to increase its bulk strength.
Above-described embodiment is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with this field Skilled worker can understand the utility model content and be carried out, and can not limit the scope of protection of the utility model with this. Within the spirit and principle of the utility model, any modifications, equivalent replacements and improvements are made should be included in this reality Within new protection domain.

Claims (9)

1. a kind of urban track traffic prestressing force slab track, which is characterized in that including track plates(1), separation layer(2), from Air-free concrete layer(3)And pedestal(4);The pedestal(4)On the basis of under line, the self-compacting concrete layer(3)It puts In pedestal(4)Top, the track plates(1)Bottom surface and self-compacting concrete layer(3)Between be provided with separation layer(2), rail Guidance tape(1)Top be provided with track(5).
2. urban track traffic according to claim 1 prestressing force slab track, which is characterized in that the pedestal(4) Reinforcing bar is inside embedded with, pre-buried reinforcing bar is higher by pedestal(4), the self-compacting concrete layer(3)The embedded bar of pedestal is embedded in, Enhance pedestal(4)With self-compacting concrete layer(3)Between connection.
3. urban track traffic according to claim 1 or 2 prestressing force slab track, which is characterized in that the pedestal (4)It is longitudinally unit fraction block structure along circuit, adjacent pans unit is equipped with expansion joint, and each unit base length is three to four Block track plates(1)Corresponding length.
4. urban track traffic according to claim 3 prestressing force slab track, which is characterized in that the track plates (1)On be provided with that the grout hole of self-compacting concrete is perfused(10), gas vent and peep hole(9), and respectively in grout hole (10), gas vent and peep hole(9)Hole position be formed with material be self-compacting concrete boss(6), the boss(6)Height Degree and track plates(1)Height it is identical, boss(6)For track plates(1)Structure /V.
5. urban track traffic according to claim 4 prestressing force slab track, which is characterized in that the boss(6) Inside circumference and track plates(1)Elastic isolation material is provided between contact surface(7).
6. urban track traffic according to claim 1 prestressing force slab track, which is characterized in that the track plates (1)For bidirectional pre-tensioned prestressed reinforced concrete construction;The separation layer(2)Material for geotextiles, non-woven fabrics, plastic cloth or anti-sticking Coating;The pedestal(4)For reinforced concrete structure;The track(5)For non-shoulder track.
A kind of 7. urban track traffic prestressing force slab track according to claim 1, which is characterized in that the track Plate(1)It is linear by adjusting the realization of mold track position in the space of 3 in Curve Segment.
8. urban track traffic according to claim 1 prestressing force slab track, which is characterized in that the track plates (1)Both sides be embedded with drainage terminal respectively(11)With lifting casing(12);Adjacent orbit plate(1)Between be equipped with plate stitch.
9. urban track traffic according to claim 1 prestressing force slab track, which is characterized in that the track plates (1)Under cushion layer can be set.
CN201721232509.4U 2017-09-22 2017-09-22 A kind of urban track traffic prestressing force slab track Active CN207452594U (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108842522A (en) * 2018-06-06 2018-11-20 广州地铁设计研究院有限公司 A kind of prefabricated floating plate track of adjustable damping grade
CN109763384A (en) * 2019-02-25 2019-05-17 杭州银龙唐普徕科技有限公司 Track structure suitable for 8-shaped track slabs for urban rail transit construction
CN110424194A (en) * 2019-08-26 2019-11-08 中铁二院工程集团有限责任公司 The prefabricated ballast bed structure of vibration isolator and its construction method on a kind of bridge
CN110453541A (en) * 2019-08-16 2019-11-15 西南交通大学 a buried track
CN111455735A (en) * 2019-12-03 2020-07-28 中铁第四勘察设计院集团有限公司 Track units and track structures for bridges
CN111535097A (en) * 2020-05-19 2020-08-14 中国铁路成都局集团有限公司成都工务段 Sleeper shoulder repair mold
CN111622026A (en) * 2020-05-09 2020-09-04 中铁第四勘察设计院集团有限公司 Plate girder structure suitable for magnetic suspension traffic and construction method thereof
WO2020231370A1 (en) * 2019-05-14 2020-11-19 Yapiray Demi̇ryolu İnşaat Si̇stemleri̇ Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Method for railway track construction
CN112239968A (en) * 2020-08-24 2021-01-19 中铁工程设计咨询集团有限公司 Prefabricated assembled track system
CN112239967A (en) * 2020-08-24 2021-01-19 中铁工程设计咨询集团有限公司 Assembled two-square-hole convex limiting track system
CN112239969A (en) * 2020-08-24 2021-01-19 中铁工程设计咨询集团有限公司 Prefabricated assembled damping track system
CN112323548A (en) * 2020-09-03 2021-02-05 中铁二十二局集团有限公司 Tramcar municipal intersection bed board construction method
CN112431070A (en) * 2020-11-25 2021-03-02 中铁第四勘察设计院集团有限公司 CRTS III plate type ballastless track
CN113737576A (en) * 2021-09-13 2021-12-03 中国铁道科学研究院集团有限公司铁道建筑研究所 Plate type ballastless track structure
CN114687260A (en) * 2022-03-07 2022-07-01 中铁南方投资集团有限公司 Assembly type track construction method and assembly type track structure

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108842522B (en) * 2018-06-06 2023-11-24 广州地铁设计研究院股份有限公司 A kind of prefabricated floating plate track with adjustable vibration damping level
CN108842522A (en) * 2018-06-06 2018-11-20 广州地铁设计研究院有限公司 A kind of prefabricated floating plate track of adjustable damping grade
CN109763384A (en) * 2019-02-25 2019-05-17 杭州银龙唐普徕科技有限公司 Track structure suitable for 8-shaped track slabs for urban rail transit construction
WO2020231370A1 (en) * 2019-05-14 2020-11-19 Yapiray Demi̇ryolu İnşaat Si̇stemleri̇ Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Method for railway track construction
CN110453541A (en) * 2019-08-16 2019-11-15 西南交通大学 a buried track
CN110424194A (en) * 2019-08-26 2019-11-08 中铁二院工程集团有限责任公司 The prefabricated ballast bed structure of vibration isolator and its construction method on a kind of bridge
CN111455735A (en) * 2019-12-03 2020-07-28 中铁第四勘察设计院集团有限公司 Track units and track structures for bridges
CN111622026A (en) * 2020-05-09 2020-09-04 中铁第四勘察设计院集团有限公司 Plate girder structure suitable for magnetic suspension traffic and construction method thereof
CN111535097A (en) * 2020-05-19 2020-08-14 中国铁路成都局集团有限公司成都工务段 Sleeper shoulder repair mold
CN112239968A (en) * 2020-08-24 2021-01-19 中铁工程设计咨询集团有限公司 Prefabricated assembled track system
CN112239969A (en) * 2020-08-24 2021-01-19 中铁工程设计咨询集团有限公司 Prefabricated assembled damping track system
CN112239967A (en) * 2020-08-24 2021-01-19 中铁工程设计咨询集团有限公司 Assembled two-square-hole convex limiting track system
CN112323548A (en) * 2020-09-03 2021-02-05 中铁二十二局集团有限公司 Tramcar municipal intersection bed board construction method
CN112431070A (en) * 2020-11-25 2021-03-02 中铁第四勘察设计院集团有限公司 CRTS III plate type ballastless track
CN113737576A (en) * 2021-09-13 2021-12-03 中国铁道科学研究院集团有限公司铁道建筑研究所 Plate type ballastless track structure
CN114687260A (en) * 2022-03-07 2022-07-01 中铁南方投资集团有限公司 Assembly type track construction method and assembly type track structure
CN114687260B (en) * 2022-03-07 2024-02-13 中铁南方投资集团有限公司 Assembly type track construction method and assembly type track structure

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