CN202610659U - Subway turnout area plate-type ballastless track composite structure - Google Patents
Subway turnout area plate-type ballastless track composite structure Download PDFInfo
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- CN202610659U CN202610659U CN 201220128202 CN201220128202U CN202610659U CN 202610659 U CN202610659 U CN 202610659U CN 201220128202 CN201220128202 CN 201220128202 CN 201220128202 U CN201220128202 U CN 201220128202U CN 202610659 U CN202610659 U CN 202610659U
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Abstract
The utility model discloses a subway turnout area plate-type ballastless track composite structure. The subway turnout area plate-type ballastless track composite structure comprises a reinforced concrete turnout slab, a self-leveling concrete layer, a geotextile separation layer and a base sequentially from top to bottom, wherein the base is provided with at least two convex barricades which are embedded into the self-leveling concrete layer, and rubber plates are glued on the periphery of each convex barricade and are used to provide a space for release of stress in vertical and horizontal directions and limit displacement. The bottom of the reinforced concrete turnout slab is provided with shearing-resistance steel, and the reinforced concrete turnout slab forms the composite structure through self-leveling concrete and the self-leveling concrete layer. The subway turnout area plate-type ballastless track composite structure has the advantages of being high in laying accuracy, small in difficulty, easy to operate, and convenient to repair. The reinforced concrete turnout slab and the self-leveling concrete layer form the composite structure so that the strength is higher. The installation of the geotextile separation layer enables vibration noise to be weakened, and secondary pouring repair is convenient when differential settlement occurs on the foundation.
Description
Technical field
The utility model relates to subway track switch plate technique field, particularly a kind of subway trouble district plate-type ballastless track composite construction.
Background technology
At present, known subway unballasted track track switch is whole embedded structure.Need sleeper, rail spare be laid on the support during construction, the adjustment precision, fixed support is disturbing concrete then.In this process, the buoyancy that the rigidity of support, fixing firm degree, concrete produce sleeper and water the power of vibrating that when smashing supporting structure is produced and all can influence the precision of having adjusted.Therefore, precision was not high after the track switch construction was accomplished, and the accurate adjustment workload is big.Because railway roadbed concrete continuous length is long, it is bad that sleeper and after-pouring railway roadbed produce the new-old concrete combination, and railway roadbed produces cracking under the thermal stresses effect, has reduced useful life longevity.
Trouble district plate-type ballastless track technology applies to Japanese the Shinkansen the earliest, and China's Beijing-Tianjin inter-city high-speed rail has also used trouble district plate-type ballastless track technology, for Germany introduces technology.The track switch plate is the nonprestressed reinforcement concrete prefabricated board; Set up the track switch plate during construction earlier; The asphalt mortar, bituminous mortar of perfusion 50mm ~ 100mm under plate, the plate face at the track switch plate bores the installing hole of fastener and the pin hole of fixed head then, is difficult to guarantee with the uplift resistance of burying sleeve pipe underground because the precision of fastener installing hole is bored in the back; Therefore, there is hidden danger of quality.
2010, China railway research institute developed the high-speed railway switch plate that China has independent intellectual property right.Be reinforced concrete prefabricated board, wherein the fastener sleeve pipe is a pre-buried type, and the plate face has 4% weathering, a shaped steel muscle is arranged under the plate or do not have a shaped steel muscle, and packed layer is self-compacting concrete or asphalt mortar, bituminous mortar under the plate, and the track switch plate need be holed and thrown steel pin nail into and carry out displacement restriction.Goat is installed in the edge of plate, needs bigger installing space.
The utility model content
The goal of the invention of the utility model is: to the problem of above-mentioned existence, a kind of subway trouble district plate-type ballastless track composite construction is provided.
The technical scheme that the utility model adopts is such: a kind of subway trouble district plate-type ballastless track composite construction technology; Be followed successively by steel concrete track switch plate, self-leveling concrete layer, geotextiles separation layer and substrate from top to bottom; At least two convex blocking platforms are set in the said substrate and embed in the self-leveling concrete layer; Paste four blocks of rubber tiles around the convex blocking platform, provide release in length and breadth to the space of stress.Said steel concrete track switch plate bottom is provided with the shearing resistance reinforcing bar and forms composite construction through self-leveling concrete and self-leveling concrete layer.
Because steel concrete track switch plate forms composite construction with the self-leveling concrete layer; The deadweight and the thickness of steel concrete track switch plate have been increased; Improve its intensity and the effect of resisting thermal stresses, flexural force; The increase of track switch plate deadweight reduces the vibrative intrinsic frequency of train operation, has reached the effect of vibration and noise reducing.Steel concrete track switch plate adopts prefabrication, and the plate surface evenness reaches 1mm/m
2, fastener mounting sleeve positioning accuracy reaches 0.8mm, guarantees that track switch rail installation accuracy meets design requirement fully, and the lifting sleeve pipe that its both sides are offered can play the function of construction and installation and secondary maintenance use.
The geotextiles separation layer is arranged between self-leveling concrete layer and the substrate keeps apart the two, is convenient to the maintenance work behind the uneven settlement of foundation.And after isolating, the vibration noise that produces when train is crossed trouble can weaken under the effect of geotextiles separation layer, after ground generation differential settlement, can also the secondary pouring maintenance be carried out in the jacking of steel concrete track switch plate.
The setting of convex blocking platform, limited steel concrete track switch plate and self-leveling concrete layer laterally, lengthwise position.
As optimal way, also comprise goat, this goat is arranged on steel concrete track switch plate middle part.Goat is arranged on after such position, helps the transmission of power more and practices thrift working space.
As optimal way, three limits of said steel concrete track switch plate are right-angle side, Yi Bian be hypotenuse, guarantee linear attractive in appearance with take minimum space.
As optimal way, said steel concrete track switch plate thickness is 220mm, and said self-leveling concrete layer thickness is 122mm, and said geotextiles separation layer thickness is 4mm.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is: lay the precision height, difficulty is little, easily operation; Easy to maintenance; Steel concrete track switch plate forms composite construction with the self-leveling concrete layer, and intensity is higher; Sticker rubber plate around the convex blocking platform provides release in length and breadth to the line displacement restriction of going forward side by side of the space of stress.The setting of geotextiles separation layer can weaken vibration noise; When ground generation differential settlement, make things convenient for the secondary pouring maintenance.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the utility model and plan view from above after rail is connected.
Fig. 3 is the front view of steel concrete track switch plate among Fig. 2.
Mark among the figure: 1 is rail, and 2 is fastener, and 3 is steel concrete track switch plate, and 4 is the self-leveling concrete layer, and 5 is the geotextiles layer of concrete; 6 is convex blocking platform, and 7 are substrate, and 8 is the fastener mounting sleeve, and 9 is the support rail platform, and 10 is the goat installing hole; 1-1 is straight rail, and 1-2 is a tongue, and 11 is the self-leveling concrete fill orifice, and 12 are the lifting sleeve pipe, and 13 for producing sign; 14 is hypotenuse, and 15 is earth terminal, and 16 is the shearing resistance reinforcing bar, and 17 is structure reinforcing bars.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
As shown in Figure 1, a kind of subway trouble district plate-type ballastless track composite construction is followed successively by steel concrete track switch plate 3, self-leveling concrete layer 4, geotextiles separation layer 5 and substrate 7 from top to bottom.At least two convex blocking platforms 6 are set in the said substrate 7 and embed in the self-leveling concrete layer 4.
Said steel concrete track switch plate 3 bottoms are provided with shearing resistance reinforcing bar 16 and form composite construction through self-leveling concrete and self-leveling concrete layer 4.Steel concrete track switch plate 3 inside also are provided with structure reinforcing bars 17.
Because steel concrete track switch plate 3 forms composite construction with self-leveling concrete layer 4, has been equivalent to increase indirectly the deadweight and the thickness of steel concrete track switch plate 3, improve its intensity and the effect of resisting thermal stresses, flexural force.Steel concrete track switch plate 3 adopts prefabrication, and the plate surface evenness reaches 1mm/m
2, the lifting sleeve pipe 12 spacing positioning accuracies that its both sides are offered reach 0.8mm, can guarantee that the installation of fastener 2 reaches requirement.
Geotextiles separation layer 5 is arranged between self-leveling concrete layer 4 and the substrate 7 keeps apart the two, is convenient to the maintenance work behind the uneven settlement of foundation.And after isolating, the vibration noise that produces when train is crossed trouble can weaken under the effect of geotextiles separation layer 5, after ground generation differential settlement, can also the secondary pouring maintenance be carried out in 3 jackings of steel concrete track switch plate.
The setting of convex blocking platform 6 has limited horizontal, the length travel of steel concrete track switch plate 3 and self-leveling concrete layer 4.
Said steel concrete track switch plate 3 tops are provided with support rail platform 9, fastener mounting sleeve 8 is set on the support rail platform 9 in advance, and fixedly installs rail 1 through fastener 2.Also comprise goat, this goat is arranged on steel concrete track switch plate 3 middle parts.As shown in Figure 2, support rail platform 3 middle parts are provided with goat installing hole 10.Goat is arranged on after such position, helps the transmission of power more and practices thrift working space.
Said rail 1 is divided into straight rail 1-1 and tongue 1-2.
Three limits of said steel concrete track switch plate 3 are right-angle side, Yi Bian be hypotenuse 14, as shown in Figure 2.And the center is provided with self-leveling concrete fill orifice 11, also stamps and produces sign 13.Be used to pour into self-leveling concrete layer 4, also can after asymmetry settlement of foundation,, carry out the secondary pouring maintenance 3 jackings of steel concrete track switch plate.
Want jacking rod concrete track switch plate 3 when considering maintenance, therefore, lifting sleeve pipe 12 is set at steel concrete track switch plate 3 two ends.
Said steel concrete track switch plate 3 thickness are 220mm, and said self-leveling concrete layer 4 thickness are 122mm, and said geotextiles separation layer 5 thickness are 4mm.
Steel concrete track switch plate 3 is followed successively by: fastener for installing mounting sleeve 8 when producing; Put into structure reinforcing bars 17, colligation shearing resistance reinforcing bar 16; Lifting sleeve pipe 12 is installed; Welding earth terminal 15 on four angles; Carry out stream curing behind the perfusion self-leveling concrete, can the demoulding after 8 hours.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. a subway trouble is distinguished the plate-type ballastless track composite construction; It is characterized in that: be followed successively by steel concrete track switch plate, self-leveling concrete layer, geotextiles separation layer and substrate from top to bottom; At least two convex blocking platforms are set in the said substrate and it is embedded in self-leveling concrete layer; Sticker rubber plate around the convex blocking platform provides release in length and breadth to the space of stress.
2. a kind of subway trouble according to claim 1 district plate-type ballastless track composite construction, it is characterized in that: said steel concrete track switch plate bottom is provided with the shearing resistance reinforcing bar and forms composite construction through self-leveling concrete and self-leveling concrete layer.
3. a kind of subway trouble according to claim 1 district plate-type ballastless track composite construction, it is characterized in that: also comprise goat, this goat is arranged on steel concrete track switch plate middle part.
4. a kind of subway trouble according to claim 1 and 2 district plate-type ballastless track composite construction, it is characterized in that: three limits of said steel concrete track switch plate are right-angle side, Yi Bian be hypotenuse.
5. a kind of subway trouble according to claim 3 district plate-type ballastless track composite construction, it is characterized in that: said steel concrete track switch plate thickness is 220mm, and said self-leveling concrete layer thickness is 122mm, and said geotextiles separation layer thickness is 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220128202 CN202610659U (en) | 2012-03-30 | 2012-03-30 | Subway turnout area plate-type ballastless track composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220128202 CN202610659U (en) | 2012-03-30 | 2012-03-30 | Subway turnout area plate-type ballastless track composite structure |
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| Publication Number | Publication Date |
|---|---|
| CN202610659U true CN202610659U (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220128202 Expired - Lifetime CN202610659U (en) | 2012-03-30 | 2012-03-30 | Subway turnout area plate-type ballastless track composite structure |
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| Country | Link |
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| CN (1) | CN202610659U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215860A (en) * | 2012-08-22 | 2013-07-24 | 中铁二十三局集团轨道交通工程有限公司 | Ballastless turnout slab, production process of ballastless turnout slab, ballastless turnout bed and ballastless turnout rail |
| CN105421159A (en) * | 2015-12-22 | 2016-03-23 | 中铁二院工程集团有限责任公司 | Plate type ballastless track |
| CN105714619A (en) * | 2016-04-21 | 2016-06-29 | 中铁二十四局集团有限公司 | Construction method of plate type ballast-free bed structure |
| CN106436492A (en) * | 2015-12-30 | 2017-02-22 | 中国铁道科学研究院铁道建筑研究所 | Maintaining method of base plates of CRTS II-shaped plate type ballastless tracks |
-
2012
- 2012-03-30 CN CN 201220128202 patent/CN202610659U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215860A (en) * | 2012-08-22 | 2013-07-24 | 中铁二十三局集团轨道交通工程有限公司 | Ballastless turnout slab, production process of ballastless turnout slab, ballastless turnout bed and ballastless turnout rail |
| CN105421159A (en) * | 2015-12-22 | 2016-03-23 | 中铁二院工程集团有限责任公司 | Plate type ballastless track |
| CN106436492A (en) * | 2015-12-30 | 2017-02-22 | 中国铁道科学研究院铁道建筑研究所 | Maintaining method of base plates of CRTS II-shaped plate type ballastless tracks |
| CN105714619A (en) * | 2016-04-21 | 2016-06-29 | 中铁二十四局集团有限公司 | Construction method of plate type ballast-free bed structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lin Xiaobo Inventor after: Duan Xiangguo Inventor after: Pan Weiwang Inventor after: Yu Pijin Inventor after: Yin Hua Inventor after: Xie Jiong Inventor after: Song Lixin Inventor after: Zhang Changchun Inventor after: Huang Jing Inventor after: Chang Kun Inventor after: Li Liangcai Inventor before: Lin Xiaobo Inventor before: Duan Xiangguo Inventor before: Pan Huiwang Inventor before: Yu Pijin Inventor before: Yin Hua Inventor before: Xie Jiong Inventor before: Song Lixin Inventor before: Zhang Changchun Inventor before: Huang Jing Inventor before: Chang Kun Inventor before: Li Liangcai |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIN XIAOBO YU PIJIN YIN HUA XIE JIONG SONG LIXIN ZHANG CHANGCHUN HUANG JING CHANG KUN LI LIANGCAI DUAN XIANGGUO PAN HUIWANG TO: LIN XIAOBO YU PIJIN YIN HUA XIE JIONG SONG LIXIN ZHANG CHANGCHUN HUANG JING CHANG KUN LI LIANGCAI DUAN XIANGGUO PAN WEIWANG |
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| CX01 | Expiry of patent term |
Granted publication date: 20121219 |
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| CX01 | Expiry of patent term |