CN103352400B - Prefabricated embedded tracks plate - Google Patents
Prefabricated embedded tracks plate Download PDFInfo
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- CN103352400B CN103352400B CN201310316101.5A CN201310316101A CN103352400B CN 103352400 B CN103352400 B CN 103352400B CN 201310316101 A CN201310316101 A CN 201310316101A CN 103352400 B CN103352400 B CN 103352400B
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Abstract
The invention discloses a kind of prefabricated embedded tracks plate, comprise precast track plate, this track plates comprises armored concrete slab, rail support groove, pre-embedded steel slab and spare interface, described rail support groove is the structure that rail embeds in track plates, described armored concrete slab comprises the prestressed structure of band and non-prestressed structure, and described pre-embedded steel slab connects with the reinforcement welding in armored concrete slab; Be reserved with for the notch of afforesting at the upper surface of track plates or establish pave-load layer at the upper surface of track plates.The present invention is different from the track plates that conventional on-site makes completely, but adopt " batch production standard prefabricated, field moduleization install ", track plates structure is simple, safeguard less, environmental protection, decrease the impact of engineering construction on existing traffic to the full extent, its construction technology is simplified, operability strengthens, and can improve speed of application.
Description
Technical field
The present invention relates to a kind of track plates, particularly relate to a kind of embedded tracks plate adopting prefabrication, field moduleization to install, belong to urban rail transit technology field.
Background technology
Modern tram, as urban public transportation system, is greatly developed all over the world, and along with the recovery of tram in the world, we have had tram and are again familiar with, and high-tech element has incorporated contemporary tram.In China, first modern tram is applied in Daliang City of China; Afterwards, Shenyang Hunnan New District is building 6 street railways in conjunction with New Towns Development; When Suzhou City's Metro Network research is with planning, in conjunction with characteristic of city, also arrange 6 street railways; Jiaxing City, when studying in conjunction with the inter-city rail transit network planning, is also intended arranging 3 street railways in urban area; Shanghai Urban Planning & Desearch Institute also writing complete " recover use, development tram feasibility study " etc.The circuit major part of tram is reorganization and expansion on existing road, or with planning town road synchronized construction.
Therefore, from the development trend of urban public transport, tram becomes a kind of inevitable.
Conventional rails construction is all construct at the scene, and its work progress is: one deck concrete bed of first precoating, and reproduces and water track plates or install precast track plate on base.The mode of this site operation often needs multiple large-scale construction equipment to coordinate, and takies path area large, traffic organization difficulty; Produce a large amount of noises, larger on the life impact of neighbouring resident; And solid concrete roabed concrete construction, quality limits by field condition, structure precision and strength control more difficult; Like this, traditional track plates and rail system thereof can not meet the requirement of urban track traffic " green, environmental protection, low energy consumption, little on resident living impact ".
Summary of the invention
The object of the invention is to: provide a kind of structure simple, multiple functional, construct quick and convenient, precision is high, different ground processing form can be adapted to mat formation requirement, present urban track traffic can be met " green, environmental protection, low energy consumption, little on resident living impact " the prefabricated embedded tracks plate that requires, solve the mode that existing track construction adopts site operation, multiple large-scale construction equipment is needed to coordinate, take path area large, traffic organization difficulty, noise is large, large on neighbouring resident living impact, and construction quality is not high, the technical problem that energy consumption is high, thus can effectively solve above-mentioned problems of the prior art.
The object of the invention is realized by following technical proposals: a kind of prefabricated embedded tracks plate, comprise precast track plate, this track plates comprises armored concrete slab, rail support groove, pre-embedded steel slab and spare interface, described rail support groove is the structure that rail embeds in track plates, described armored concrete slab comprises the prestressed structure of band and non-prestressed structure, and described pre-embedded steel slab connects with the reinforcement welding in armored concrete slab; Be reserved with for the notch of afforesting at the upper surface of track plates or establish pave-load layer at the upper surface of track plates.
As a kind of preferred embodiment, in road bed board, preset the discharge pipe line be in communication with the outside.
As a kind of preferred embodiment, the plate that longitudinal junction of adjacent precast track plate is arranged for draining of rail stitches.
As a kind of preferred embodiment, the spare interface of described precast track plate comprises reserved grouting mouth, discharge casing position, pre-buried lifting interface and adjustment positional interface.
As a kind of preferred embodiment, prefabricated rail support groove is the structure of straight trough, skewed slot or bottom land pre-pit, groove, in prefabricated rail support groove, be filled with polymer composite.
As a kind of preferred embodiment, the strength grade of described armored concrete slab is C50, and thickness of concrete cover is greater than or equal to 30mm.
As a kind of preferred embodiment, described armored concrete slab is the prestressed structure of band, its form of construction work is: armored concrete slab adopts pre-tensioning system to carry out pre-stress construction, prestress wire adopts strength grade to be 1000-2500 MPa, diameter is 10-20mm, and single tendon stretch power is the steel strand of 150-300 kN.
As a kind of preferred embodiment, the construction of described track plates comprises following two aspects:
One. prefabricated with mold integral in factory;
----reinforced bar engineering-matched moulds-presstressed reinforcing steel processing and installation-installation of embedded parts--moulding by casting-pre-stress construction-stream curing--demoulding--spray maintenance-deposit and transport of getting the raw materials ready that prefabrication process mainly comprises: model;
Two. job site modularization is installed:
Installation process comprises: strengthen bedding as ground, and--road bed board lifts and the positioning--perfusion mortar--rail welding in rail support groove and location--field cast-in-place--drainage sunk well.
Further preferably, the detailed process of precast track plate is: reinforcing bar is carried out processing is processed into reinforcing cage on the one hand, then construction is prepared burden: coarse aggregate, fines, cement, water and Admixture are mixed together, in reinforcing cage, concrete casting injection forming is carried out after mix and blend, as needed Shi Hanzhang after cast, carrying out pre-stress construction, then carrying out steam curing, then the demoulding, carries out spray maintenance after the demoulding.
Further preferably, track plates end face flatness requirement: the support rail face level of track plates corner is no more than ± 1.0mm; One-sided support rail face central authorities amount of warpage≤3.0mm; Track plates bottom surface flatness deviation is no more than 5.0mm/m; Track plates soffit wharf's pavement quality, the degree of depth 1 ~ 2mm.
Compared with prior art, beneficial effect of the present invention: the present invention is different from the track plates that conventional on-site makes completely, but adopt " batch production standard prefabricated, field moduleization install ", specifically, possess following advantage:
1, adopt batch production standard prefabricated, track plates structure be simple, safeguard less, environmental protection, decrease the impact of engineering construction on existing traffic to the full extent, its construction technology is simplified, and operability strengthens, and can improve speed of application;
2, work progress is owing to adopting modular installation, and noise during its construction is low, and after construction, in the operation phase, noise is also lower, reduces the impact on resident near track;
3, track plates batch production is prefabricated, precision is high, Track regularity is good, connected by mortar or peculiar part between track plates, longitudinal force, transverse shearing force, vertical force and thermal stresses can be transmitted, solve the problem of track plates longitudinal register and power transmission, the impact that reduction temperature deformation and foundation settlement cause circuit; And the setting of described longitudinal connector does not affect track plates structural strength, stress is avoided to concentrate;
4, this track plates bottom pouring screed, provides the effect of supporting, adjustment, load and power transmission, can cancel traditional non-fragment orbit concrete bed in use, reduces line levels, shortens construction period further;
5, carry out road surface pavement cladding material according to the different demand of circuit, as greenbelt or flexible pavement, thus reach harmonious with surrounding enviroment;
6, for concrete surface conditions, mat formation in scene after carrying out corresponding basement process of can excavating on original road surface, saves construction sequence.
Accompanying drawing explanation
Fig. 1 is the construction process figure of precast track plate of the present invention.
Fig. 2 is the structural representation of the embodiment of the present invention 1.
Fig. 3 is the structural representation of the embodiment of the present invention 2.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
All features disclosed in this manual, or the step in disclosed all methods or process, except the speciality mutually repelled and/or step, all can combine by any way, unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object, namely, unless specifically stated otherwise, an embodiment in a series of equivalence of each feature or similar characteristics.
The present invention is different from conventional rails form completely, adopt the track plates of the prefabricated different types of standardization, the form of construction work of " batch production manufacture, field moduleization are installed ", and for concrete surface conditions, multi-form precast track plate can adopt different foundation treatment mode for different sections of highway ground situation, change the form of filling out, stake raft, stake plate, pile net structure etc. as ground-precast track plate, stake plate comprises non-buried, deep embeded type and shallow embedding formula.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of prefabricated embedded tracks plate, comprise precast track plate, the prefabricated different size form of described precast track plate, size adjustable, at the prefabricated corresponding short slab of sharp radius curve section, precast track plate is ordinary reinforced concrete structure, concrete railway board can be divided into Shi Hanzhang structure and non-prestressed structure according to concrete section and different template, and concrete strength is higher than C40.
Concrete structure is: track plates comprises armored concrete slab 1, rail support groove 2, pre-embedded steel slab 3 and spare interface, described rail support groove 2 is the structure that rail 5 embeds in track plates, described armored concrete slab 1 comprises the prestressed structure of band and non-prestressed structure, and described pre-embedded steel slab 3 connects with the reinforcement welding in armored concrete slab 1; Be reserved with for the notch 6 of afforesting at the upper surface of track plates or establish pave-load layer 7 at the upper surface of track plates.
In road bed board, preset the discharge pipe line 8 be in communication with the outside, or the plate that longitudinal junction of adjacent precast track plate is arranged for draining of rail stitches.The spare interface of described precast track plate comprises reserved grouting mouth 9, discharge casing position 4, pre-buried lifting interface 10 and adjustment positional interface.Described grouting mouth reserved location should ensure mortar flowing evenly, and does not affect track plates structural strength.In addition, also according to stray electrical current determination drainage terminal.The position of described built-in fitting ensures that track plates is in transport, installation process, track plates uniform force.
Prefabricated rail support groove be the structure of straight trough, skewed slot or bottom land pre-pit, groove, be beneficial to and safeguard rail system stability.In prefabricated rail support groove, be filled with polymer composite, macromolecular material is bonded on track interior walls.
The strength grade of described armored concrete slab is C50, and thickness of concrete cover is greater than or equal to 30mm.
Described armored concrete slab is the prestressed structure of band, its form of construction work is: armored concrete slab adopts pre-tensioning system to carry out pre-stress construction, prestress wire adopts strength grade to be 1000-2500 MPa, and diameter is 10-20mm, and single tendon stretch power is the steel strand of 150-300 kN.
The construction of described track plates comprises following two aspects:
One. prefabricated with mold integral in factory;
----reinforced bar engineering-matched moulds-presstressed reinforcing steel processing and installation-installation of embedded parts--moulding by casting-pre-stress construction-stream curing--demoulding--spray maintenance-deposit and transport of getting the raw materials ready that prefabrication process mainly comprises: model;
As shown in Figure 1, the detailed process of precast track plate is: reinforcing bar is carried out processing is processed into reinforcing cage on the one hand, then construction is prepared burden: coarse aggregate, fines, cement, water and Admixture are mixed together, in reinforcing cage, concrete casting injection forming is carried out after mix and blend, steam curing is carried out after cast, then carry out the demoulding, after the demoulding, carry out spray maintenance.
Wherein: track plates end face flatness requirement: the support rail face level of track plates corner is no more than ± 1.0mm; One-sided support rail face central authorities amount of warpage≤3.0mm; Track plates bottom surface flatness deviation is no more than 5.0mm/m; Track plates soffit wharf's pavement quality, the degree of depth 1 ~ 2mm.
Two. job site modularization is installed:
Installation process comprises: strengthen bedding as ground, and--road bed board lifts and the positioning--perfusion mortar--rail welding in rail support groove and location--field cast-in-place--drainage sunk well.
Modular installation, easy and simple to handle, consuming time few.
embodiment 1: this track plates is used for independent right of way, is mainly used in bearing tram load, provides afforestation of city simultaneously.
As shown in Figure 2, without the need to sleeper necessary on conventional rail guidance tape and fastener on this precast track plate, adopt nonprestressed reinforcement concrete structure.Precast track plate be placed in reach modulus of elasticity requirement ground on, lay along circuit assembling, at different sections of highway, as straightway, curved section etc. lay the precast track plate of different specification size; Track plates is reserved with the notch that can afforest, and can realize afforestation of city, effect conforming with surrounding enviroment.
In the present embodiment:
1. this track plates is rail embedded tracks plate; Be applicable to rail and adopt 59R2 grooved rail, the section of filled high polymer composite material locking rail.
2. track plates strength grade of concrete C50.The raw material such as concrete cement used, sand, stone and water should meet the pertinent regulations of GB50204 " concrete structure engineering construction quality accident specification " and GB/T50476 " durability design specification ".Thickness of concrete cover is not less than 30mm.
3. cement should adopt strength grade to be not less than the portland cement of 42.5 grades, and technical requirements should meet the regulation of GB175; Coarse aggregate should adopt rubble, maximum particle diameter 20mm, and fines should adopt hard natural sand.
4. plate surface evenness requires as follows:
1). plate top surface planeness: the support rail face level of track plates corner is no more than ± 1.0mm; One-sided support rail face central authorities amount of warpage≤3.0mm.
2). plate bottom surface planeness: allowable variation is for being no more than 5.0mm/m.
5. track plates soffit answers wharf's pavement quality, the degree of depth 1 ~ 2mm.
embodiment 2: this track plates is mainly used in shared right of way, bears tram and automobile load simultaneously.
As shown in Figure 3, in order to strengthen structural-load-carrying capacity, adopt prestressed reinforced concrete structure.Described track plates reserves grout hole, header tank, pre-buried adjusting lever, lifting part, steel plate, drainage pipe etc.; The pitch consistent with road surface, concrete or other materials can be watered in precast track plate surface, concordant with road surface.
In the present embodiment:
1. this track plates is rail embedded tracks plate.Be applicable to rail and adopt 59R2 grooved rail, the section of filled high polymer composite material locking rail.
2. track plates strength grade of concrete C50.The raw material such as concrete cement used, sand, stone and water should meet the pertinent regulations of GB50204 " concrete structure engineering construction quality accident specification " and GB/T50476 " durability design specification ".Thickness of concrete cover is not less than 30mm.
3. cement should adopt strength grade to be Portland cement, and technical requirements should meet the regulation of GB175.Coarse aggregate should adopt rubble, maximum particle diameter 20mm, and fines should adopt hard natural sand.
4. track plates adopts pre-tensioning system to carry out pre-stress construction.Prestress wire adopts strength grade to be 1000-2500 MPa, and diameter is 10-20mm steel strand, and single tendon stretch power is 210 kN, and special circumstances suitably can reduce stretching force, but is not less than 200 kN.
5. track plates and rail groove length, width dimensions allowable variation are ± 3.0mm.Thickness does not allow to occur negative common difference, and plus tolerance is no more than 3mm.
6. plate surface evenness requires as follows:
1). support rail surface evenness.The support rail face level of track plates corner is no more than ± 1.0mm; One-sided support rail face central authorities amount of warpage≤3.0mm.
2). plate bottom surface planeness.Allowable variation is for being no more than 5.0mm/m.
7. track plates soffit answers wharf's pavement quality, the degree of depth 1 ~ 2mm.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a prefabricated embedded tracks plate, it is characterized in that: comprise precast track plate, this track plates comprises armored concrete slab, rail support groove, pre-embedded steel slab and spare interface, described rail support groove is the structure that rail embeds in track plates, in prefabricated rail support groove, be filled with polymer composite, macromolecular material is bonded on track interior walls; Described armored concrete slab comprises the prestressed structure of band and non-prestressed structure, and described pre-embedded steel slab connects with the reinforcement welding in armored concrete slab; Be reserved with for the notch of afforesting at the upper surface of track plates or establish pave-load layer at the upper surface of track plates.
2. prefabricated embedded tracks plate as claimed in claim 1, is characterized in that: in track plates, preset the discharge pipe line be in communication with the outside.
3. prefabricated embedded tracks plate as claimed in claim 1, is characterized in that: the plate that longitudinal junction of adjacent precast track plate is arranged for draining of rail stitches.
4. prefabricated embedded tracks plate as claimed in claim 1, is characterized in that: the spare interface of described precast track plate comprises reserved grouting mouth, discharge casing position, pre-buried lifting interface and adjustment positional interface.
5. prefabricated embedded tracks plate as claimed in claim 1, is characterized in that: prefabricated rail support groove is the structure of straight trough, skewed slot or bottom land pre-pit, groove.
6. prefabricated embedded tracks plate as claimed in claim 1, is characterized in that: the strength grade of described armored concrete slab is C50, and thickness of concrete cover is greater than or equal to 30mm.
7. prefabricated embedded tracks plate as claimed in claim 1, it is characterized in that: described armored concrete slab is the prestressed structure of band, its form of construction work is: armored concrete slab adopts pre-tensioning system to carry out pre-stress construction, prestress wire adopts strength grade to be 1000-2500MPa, diameter is 10-20mm, and single tendon stretch power is the steel strand of 150-300kN.
8. the prefabricated embedded tracks plate as described in claim arbitrary in claim 1-7, is characterized in that: the construction of described track plates comprises following two aspects:
One. prefabricated with mold integral in factory;
----reinforced bar engineering-matched moulds-presstressed reinforcing steel processing and installation-installation of embedded parts--moulding by casting-pre-stress construction-stream curing--demoulding--spray maintenance-deposit and transport of getting the raw materials ready that prefabrication process mainly comprises: model;
Two. job site modularization is installed:
Installation process comprises: reinforcement bedding is ground, and--track plates lifts and the positioning--perfusion mortar--rail welding in rail support groove and location--field cast-in-place--drainage sunk well.
9. prefabricated embedded tracks plate as claimed in claim 8, it is characterized in that: the detailed process of precast track plate is: reinforcing bar is carried out processing is processed into reinforcing cage on the one hand, then construction is prepared burden: coarse aggregate, fines, cement, water and Admixture are mixed together, in reinforcing cage, concrete casting injection forming is carried out after mix and blend, as needed Shi Hanzhang after cast, carrying out pre-stress construction, then carrying out steam curing, then the demoulding, carries out spray maintenance after the demoulding.
10. prefabricated embedded tracks plate as claimed in claim 9, is characterized in that: track plates end face flatness requirement: the support rail face level of track plates corner is no more than ± 1.0mm; One-sided support rail face central authorities amount of warpage≤3.0mm; Track plates bottom surface flatness deviation is no more than 5.0mm/m; Track plates soffit wharf's pavement quality, the degree of depth 1 ~ 2mm.
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| CN201310316101.5A CN103352400B (en) | 2013-07-25 | 2013-07-25 | Prefabricated embedded tracks plate |
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| CN103352400B true CN103352400B (en) | 2015-09-02 |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104532690B (en) * | 2014-12-18 | 2016-06-29 | 成都市新筑路桥机械股份有限公司 | Separate type track structure is prefabricated and construction method |
| CN105984021A (en) * | 2015-02-09 | 2016-10-05 | 任丘市永基建筑安装工程有限公司 | Technique for processing galling surface of PC plate produced by assembling mold |
| CN105256667A (en) * | 2015-09-30 | 2016-01-20 | 成都市新筑路桥机械股份有限公司 | Framework flat prefabricated track plate |
| CN105256668A (en) * | 2015-09-30 | 2016-01-20 | 成都市新筑路桥机械股份有限公司 | Embedded track system |
| CN105256669A (en) * | 2015-09-30 | 2016-01-20 | 成都市新筑路桥机械股份有限公司 | Embedded track system used in tunnel |
| CN105155364A (en) * | 2015-09-30 | 2015-12-16 | 成都市新筑路桥机械股份有限公司 | Embedded track structure used in tunnel |
| CN108049259A (en) * | 2017-10-31 | 2018-05-18 | 天津银龙预应力材料股份有限公司 | A kind of novel track plate |
| CN108374295B (en) * | 2018-04-11 | 2024-02-23 | 中铁第四勘察设计院集团有限公司 | Quick construction method of rubber-tyred guide rail trolley line and roadbed structure |
| CN109352793A (en) * | 2018-09-05 | 2019-02-19 | 北京九州轨隔振技术有限公司 | A kind of manufacturing method of multistage precast track plate |
| CN110485214A (en) * | 2019-08-28 | 2019-11-22 | 吴永芳 | A kind of prefabricated railway roadbed module of assembly digitalization and its production method, track |
| CN111074703B (en) * | 2020-01-08 | 2021-08-17 | 成都市新筑路桥机械股份有限公司 | Maintenance method for uneven settlement of roadbed of embedded track steel groove type ballast bed |
| 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 |
| CN112281549A (en) * | 2020-10-26 | 2021-01-29 | 成都市新筑路桥机械股份有限公司 | Quick construction method for level crossing track |
| CN114045790B (en) * | 2021-11-18 | 2022-12-16 | 中建五局土木工程有限公司 | High-precision installation method of large-area water stop steel plate of side wall of hydraulic dam |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317454C (en) * | 2005-06-29 | 2007-05-23 | 上海磁浮交通工程技术研究中心 | Superimposed rail beam for magnetic suspension traffic and method for manufacturing same |
| CN102039632B (en) * | 2009-10-14 | 2012-07-11 | 常州市圣乐工程机械有限公司 | Embedded type casting mold track-bearing shell of ballastless track plate |
| CN103015287A (en) * | 2012-12-25 | 2013-04-03 | 中铁第四勘察设计院集团有限公司 | Prefabricated plate-type paved structure on ballastless track |
| CN203411862U (en) * | 2013-07-25 | 2014-01-29 | 成都市新筑路桥机械股份有限公司 | Prefabricated embedded track board |
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Inventor after: Feng Kemin Inventor after: Fei Xuemei Inventor after: Chen Peng Inventor after: Wu Jianzhong Inventor after: Jiao Honglin Inventor after: Yang Gang Inventor after: Xu Shouwei Inventor after: Luo Jiong Inventor after: He Yunwei Inventor after: Liu Wei Inventor before: Feng Kemin Inventor before: Jiao Honglin Inventor before: Yang Gang Inventor before: Luo Jiong Inventor before: He Yunwei Inventor before: Fei Xuemei |
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Effective date of registration: 20201014 Address after: 611430 Xinjin Industrial Park Xinjin County Chengdu city Sichuan Province Patentee after: CHENGDU XINZHU ROAD & BRIDGE MACHINERY Co.,Ltd. Patentee after: BEIJING URBAN CONSTRUCTION DESIGN & DEVELOPMENT GROUP Co.,Ltd. Address before: 611430 Xinjin Industrial Park, Sichuan, Chengdu Patentee before: CHENGDU XINZHU ROAD & BRIDGE MACHINERY Co.,Ltd. |