CN205242181U - Novel board -like ballastless track structure - Google Patents
Novel board -like ballastless track structure Download PDFInfo
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- CN205242181U CN205242181U CN201520709198.0U CN201520709198U CN205242181U CN 205242181 U CN205242181 U CN 205242181U CN 201520709198 U CN201520709198 U CN 201520709198U CN 205242181 U CN205242181 U CN 205242181U
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Abstract
The utility model relates to a high -speed railway, urban rail transit are with the board -like ballastless track structure of novel prefabrication. A board -like ballastless track structure of novel prefabrication, it includes fill adjustment layer, base, spacing boss under rail, fastener, prefabricated track board, the board, the track board pass through empty frame form (perforating hole) in the middle of being, with middle corresponding set up boss (5) of perforating hole of prefabricated track board on base (4), spacing boss (5) are single or a plurality of, the utility model discloses enabling the tensile stress that adjustment layer receives and reducing, the track board bears bigger tensile stress, but the big rigidity function of the high strength of full play track board, the track board sets up the perforating hole and has reduced manufacturing cost, has also lightened the track board and done all can by vertical temperature, reduces the board -like track structure board angle warpage of unit by a wide margin, in the middle of the spacing boss guidance tape in orbit, the maintenance renovation that part replacement such as the track board of being convenient for and track do not carry on that the lifting is rectified during uniform settlement etc..
Description
Technical field
The utility model relates to non-fragment orbit and lays field, particularly a kind of New-type plate non-fragment orbit.
Background technology
At present, it is several that China's non-fragment orbit pattern mainly contains CRTS I type double-block type, CRTS I plate-type, CRTS II plate-type and CRTS III plate-type, all has different pluses and minuses at aspects such as construction costs, efficiency of construction, maintenanceabilities.
CRTS I type double-block type ballastless track has higher globality, can continue to use the design and fabrication technology of sleeper, and cost is relatively low, but its cast-in-place road bed board and prefabricated sleeper and road bed board New-old concrete joint surface easily crack; Road bed board is cast-in-place concrete, surface drainage slope constructional difficulties, and quality control on construction is difficulty relatively, and efficiency of construction is also relatively poor, and meanwhile, when destructive hurt appears in track structure, maintenanceability is relatively poor.
CRTS I plate-type non-fragment orbit has good workability and recoverability, the stressed maximum of its beam-ends convex gear platform, but beam-ends convex gear platform is semicircle, non-deformability and relatively poor for Longspan Bridge adaptability; Filling bed cement emulsified asphalt mortar stability and durability are subject to raw material, construction technology and weather influence larger, and Asphalt emulsion content is more, cause filling bed material cost relatively high.
CRTS II plate-type ballastless track structure globality and vertical continuity are better, rail smooth is good, but its constructing operation is loaded down with trivial details, the vertical link of track plates structure maintenanceability is relatively poor, beam-ends arranges anchor structure, have a negative impact, and it is poor to adjust adaptability for the engineering in later stage for the globality of adjacent road structure, track plates fine finishining involves great expense, and building cost is the highest.
CRTS III plate-type non-fragment orbit adopts self-compacting concrete to replace cement emulsified asphalt mortar, for preventing that adjusting layer concrete cracking lays reinforced mesh, and under track plates pre-buried door type muscle, making track plates and self-compacting concrete adjust layer is connected as a whole, structure is durable good compared with property, but its filling bed self-compacting concrete adopts central mix, tank car to be transported to cast-in-site, waste large percentage, also cause cost higher, simultaneously, plate lower limit groove organic elastic material is deteriorated, track structure is while occurring destructive hurt, and maintenanceability is poor.
Utility model content
In order to solve the deficiency in prior art, the utility model provides a kind of New-type plate non-fragment orbit.
A kind of New-type plate non-fragment orbit, comprise rail, fastener, precast track plate, plate retrofilling adjustment layer, base, positive stop lug boss, wherein: described New-type plate non-fragment orbit comprises at least one precast track plate and adjusts layer formation and be arranged on a corresponding base. Described precast track plate is arranged on described adjustment layer above and is formed with at least one through hole at middle part, and described positive stop lug boss has the shape corresponding with the shape of described through hole, and rail is arranged on described precast track plate. Described track plates is middle transmission (through hole) frame form.
On described base, positive stop lug boss is set, its position is corresponding with transmission place (through hole) in the middle of precast track plate, and positive stop lug boss outside dimension is less than track plates through hole. Described positive stop lug boss is that single or multiple, corresponding track plates through holes is single or multiple, and during for single through hole, its through hole direction along ng a path (longitudinally) length of side is greater than its horizontal length of side; For in the middle of multiple when transmission framework, square, the circular and shape that formed by straight line and camber line that its framework can be.
Vibration damping layer (6) is set between described precast track plate through hole and positive stop lug boss, and vibration damping layer (6) can be installed or later stage cast-in-site in advance in track plates through hole inner side; Vibration damping layer (6) is made up of elastomeric material; Described elastomeric material is prefabricated caoutchouc elasticity backing plate or cast-in-place two component polyurethane. While adopting prefabricated caoutchouc elasticity backing plate, inside track plates through hole, the outer side elevation of facade and boss all has protruding or recessed distribution shape structure, caoutchouc elasticity backing plate both sides have recessed or protruding distribution shape structure to coincide with it, rubber mat plate is close to facade inside track plates through hole, and the space between itself and boss is filled fixing with not shrinking cracking-resistant cement mortar or pouring concrete; When cast-in-place two component polyurethane, first paste infusion bag at track plates through hole and boss gap, after the cast polyurethane being stirred is filled.
Layer (3) is adjusted in described filling can select the one in the materials such as self-compacting concrete, gravity flowing levelling mortar, polymer emulsion-cementitious composite mortar or concrete, preferred adjustment layer is emulsified asphalt-cementitious composite mortar, form of construction work can adopt surrounding installation form or infusion bag construction, preferably infusion bag construction, preferably infusion bag construction, can form drainage channel between two strip adjustment layers under plate.
Between the bottom surface of described precast track plate (2) and described adjustment layer (3), separation layer (7) is set; Separation layer (7) is formed by geotextiles, nonwoven or release coating.
Between described contiguous prefabricated track plates (2), be provided with gap, and between adjacent precast track plate (2) without any connection or packing material.
Described a kind of New-type plate non-fragment orbit, described base is longitudinally unit fraction block structure, and adjacent pans is provided with transverse slot between unit, and each base unit length can be the length that one or more track plates is corresponding.
According to another aspect of the present utility model, a kind of method of manufacturing above-mentioned New-type plate non-fragment orbit comprises the following steps:
1) lay base bar-mat reinforcement, carry out block placement concrete to form described base, when seat concrete reaches 70% intensity, pourable positive stop lug boss, also can reserve boss bar construction;
2) precast track plate is installed, the position of precast track plate described in accurate adjustment, then arranges the hold down gag of precast track plate;
3) perfusion plate retrofilling layer material. If positive stop lug boss concrete is poured into a mould, can first two strip infusion bags be laid on to track correspondence below, track plates both sides, then pour into plate retrofilling and adjust layer, under plate, between two strip adjustment layers, can form drainage channel; If reserved positive stop lug boss reinforcing bar, also can first will at the bottom of track plates, preestablish after separation layer, under plate, cavity surrounding is established template, rubber mat plate and is arranged in advance facade inside track plates through hole, finally filling bed material is entered from reserved positive stop lug boss reinforcing bar perfusion, until full, boss and plate retrofilling layer form one, and preferred material used is self-compacting concrete;
4) after the sclerosis of plate retrofilling layer material, can be at the on-the-spot vibration damping layer elastomeric material of installing or pour into a mould of track plates through hole and positive stop lug boss gap (can save when boss and the cast of plate retrofilling layer one).
Preferably, described elastomeric material is prefabricated caoutchouc elasticity backing plate or cast-in-place two component polyurethane.
In described step 3) in, in the time of the vertical described template of frame, form separation layer in the bottom surface of track plates in advance.
Further, at bottom surface bonding geotextiles, nonwoven or the Polypropylence Sheet of precast track plate using as separation layer; Or spray release coating as separation layer in described bottom surface.
Alternatively, in described step 3) in, in the time using described infusion bag, the infusion bag outside the direct contact adjusting layer in bottom surface of precast track plate.
Adjusting layer and positive stop lug boss can integrated poured moulding or moulding by casting individually.
In addition, the intensity of base reach design strength more than 70% after, can carry out described step 2).
Because corresponding surface between adjustment layer of the present utility model and track plates is plane, cause adjusting between layer and track plates two-layer for what be separated from each other, compared with under existing track plates, pre-buried door type muscle is connected to an overall structure with self-compacting concrete adjustment layer, the utility model can make to adjust layer institute tension stress and reduce, track plates bears larger tension, can give full play to the large rigidity function of high strength of track plates; Track plates arranges through hole and has reduced manufacturing cost, has also alleviated the suffered longitudinal temperature power of track plates, significantly reduces unit plate type track structure plate angle warpage; Positive stop lug boss, in the middle of track plates, is convenient to the part replacement such as track plates, can carry out quickly and easily the maintenance regulations such as lifting correction in the time of differential settlement. In addition, positive stop lug boss (5) also can be together with adjusting layer moulding by casting, required adjustment layer mortar can adopt current in a large number idle Mobile mortar trolley in situ preparation, can significantly reduce raw material and social resources and waste, and reduced boss operational procedure, improve efficiency of construction.
Thereby, the non-fragment orbit pattern that the utility model provides is from the viewpoint of structural design and stressed comparatively reasonable, there is good structural stability, durability and recoverability, and good construction convenience, can meet the requirement of the track traffic high rides such as railway, light rail, subway and high stability.
Brief description of the drawings
Above-mentioned and other side of the present utility model and feature are by from presenting the explanation of embodiment is clear below in conjunction with accompanying drawing, wherein:
Fig. 1 is according to the front view of the New-type plate non-fragment orbit of the utility model embodiment 1;
Fig. 2 is according to the side sectional view of the New-type plate non-fragment orbit of the utility model embodiment 1;
Fig. 3 is according to the cross-section cutaway view of the New-type plate non-fragment orbit of the utility model embodiment 1;
Fig. 4 is according to the front view of the New-type plate non-fragment orbit of the utility model embodiment 2;
Fig. 5 is according to the side sectional view of the New-type plate non-fragment orbit of the utility model embodiment 2;
Fig. 6 is according to the front view of the New-type plate non-fragment orbit of the utility model embodiment 3;
Fig. 7 is according to the side sectional view of the New-type plate non-fragment orbit of the utility model embodiment 3;
Fig. 8 is according to the cross-section cutaway view of the New-type plate non-fragment orbit of the utility model embodiment 3.
Detailed description of the invention
A kind of New-type plate non-fragment orbit and the manufacture method thereof that the utility model are provided below in conjunction with the drawings and specific embodiments are described in detail.
Comprise rail 1, at least one precast track plate unit and at least one base 4 according to New-type plate non-fragment orbit of the present utility model. Each in described at least one precast track plate unit is formed and is arranged on a corresponding base by precast track plate 2 and adjustment layer 3. In each precast track plate unit, adjusting layer 3 is arranged on base 4, precast track plate 2 is arranged on to be adjusted on layer 3 and is formed with at least one through hole at middle part, adjust on layer 3 and be provided with the positive stop lug boss 5 being correspondingly engaged in each through hole, described positive stop lug boss has the shape corresponding with the shape of described through hole, and rail 1 is arranged on precast track plate 2. The quantity of precast track plate unit and base can be selected arbitrarily according to the length of track, thereby meets the requirement of various tracks.
According to New-type plate non-fragment orbit of the present utility model, the corresponding surface of adjusting between layer 3 and precast track plate 2 is plane, making to adjust layer is be separated from each other two-layer with precast track plate, this is compared with under existing track plates, pre-buried door type muscle is connected to an overall structure with self-compacting concrete adjustment layer, can make to adjust layer institute tension stress reduces, and track plates bears larger tension, both bring into play its maximum effect according to rigidity separately. Non-fragment orbit of the present utility model comprises at least one base, and at least one precast track plate unit is set on each base, this unit sectional type design of base can reduce the irregular cracking of concrete bed, improve the durability of base, and track plates, adjustment layer and base are hierarchy and track plates and adjust between layer without boning, make structure stress more reasonable, can improve the durability of spacer structure. In addition, because precast track plate adopts unit fraction block structure, in the time that track plates is subject to bulk temperature loads change, only fastener and the boss effect of contraction to track plates, alleviate the suffered longitudinal temperature power of track plates, therefore suffered temperature stress, much smaller than the suffered TEMPERATURE FORCE of continous way plate-type ballastless track, meets the requirement of railway high ride and high stability. In addition, because the middle part of precast track plate 2 is formed with at least one through hole, adjust on layer 3 and be provided with the positive stop lug boss 5 being correspondingly engaged in each through hole. Therefore, boss limits the transverse shifting of track plates on base and vertically moves as stopping means through track plates face, can obtain track plates and adjust designing without bonding between layer, and can keep the correct track geometry of track, ensure effective transmission of train load, temperature load etc., further improved the stability of track structure. Further, due to the middle transmission frame structure of track plates, not only significantly reduce deadweight and the manufacturing cost of track plates, and can eliminate by the temperature difference and cause four jiaos of warpages of integral slab and produce the deficiency of gap.
Further, the bottom surface of precast track plate 2 can directly contact or be provided with between it separation layer with adjustment layer 3. For example, as Figure 1-3, between the bottom surface of precast track plate 2 and adjustment layer 3, separation layer 7 is set. Separation layer 7 for example can be formed by geotextiles, nonwoven, Polypropylence Sheet or release coating, but the material of separation layer is not limited to this. At precast track plate and adjust the maintenance that separation layer is set further facilitates track between layer.
In addition, positive stop lug boss 5 arranges vibration damping layer 6 with the inner side of precast track plate 2. For example, as Figure 1-3, between precast track plate 2 and positive stop lug boss 5, vibration damping layer 6 is set. Vibration damping layer 6 is formed by elastomeric material. Preferably, described elastomeric material is resin elastomeric material, and more preferably, described elastomeric material is prefabricated caoutchouc elasticity backing plate or cast-in-place two component polyurethane. Material described herein is only exemplary, and the material of vibration damping layer is not limited to this, can adopt the conventional any elastomeric material in this area. By vibration damping layer is set between precast track plate and positive stop lug boss, can reduce track vibration.
Further, between adjacent precast track plate 2, be provided with gap, and between adjacent precast track plate 2 without any connection or packing material. In addition, between adjacent base 4, be provided with gap. Thus, New-type plate non-fragment orbit of the present utility model forms sectional type cellular construction. Can align with the gap between adjacent pans in gap between adjacent precast track plate, also can not line up. In embodiment 1 of the present utility model, show the embodiment of gap alignment.
In addition, precast track plate 2 can be for example prefabricated C60 reinforced concrete frame plate, and it is the above armored concrete of 30MPa (or mortar) that positive stop lug boss 5 for example adopts compression strength. According to an example, adjust layer 3 and can adopt self-compacting concrete, gravity flowing levelling mortar or polymer-modified cement mortar and concrete.
Fig. 1-Fig. 3 has shown the New-type plate non-fragment orbit according to embodiment 1 of the present utility model, and wherein the middle part of single precast track plate 2 is formed with a through hole, makes to be provided with a positive stop lug boss 5 on single adjustment layer. In embodiment 1, the longitudinal edge that described positive stop lug boss 5 prolongs orbital direction is longer than the widthwise edge of this positive stop lug boss.
Fig. 4 and Fig. 5 have shown the New-type plate non-fragment orbit according to embodiment 2 of the present utility model, embodiment 2 is that with the difference of embodiment 1 middle part of single precast track plate 2 is formed with multiple through holes, makes to be provided with multiple positive stop lug boss 5 on single adjustment layer. Although show that in this diagram through hole is quadrangle, through hole shape is not limited to this, that described positive stop lug boss 5 can have is square, circular, the shape of any or multiple compositions in straight line and camber line.
As shown in Fig. 6-8, show the New-type plate non-fragment orbit according to embodiment 3 of the present utility model. In this embodiment, boss pouring concrete, track plates both sides track retrofilling layer is polymer-cementitious composite low-elasticity-modulus gravity flowing levelling mortar, and adopts the construction of strip infusion bag method, can reduce by 1/3rd filling bed material usage.
Next, will illustrate according to the method for the above-mentioned New-type plate non-fragment orbit of manufacture of the present utility model. Particularly, comprise the following steps according to manufacture method of the present utility model:
1) lay base bar-mat reinforcement, carry out block placement concrete to form described base, when seat concrete reaches 70% intensity, pourable positive stop lug boss, also can reserve boss bar construction;
2) precast track plate is installed, the position of precast track plate described in accurate adjustment, then arranges the hold down gag of precast track plate;
3) if positive stop lug boss (5) is poured into a mould, first two strip infusion bags are laid on to track correspondence below, track plates both sides, then pour into plate retrofilling and adjust layer; If only reserved positive stop lug boss (5) reinforcing bar, at the bottom of track plates, preestablish after separation layer, first cavity surrounding under plate is established to template, then filling bed material is entered from reserved positive stop lug boss reinforcing bar perfusion, until full;
4) after the sclerosis of plate retrofilling layer material, get final product vibration damping layer (6) the elastic resin material between cast-in-site track plates (2) through hole and positive stop lug boss (5); If damping material is prefabricated rubber mat plate, should, before perfusion filling bed material, be arranged in advance track plates through hole inner side.
5) steel rail laying on precast track plate 2.
Further alternatively, elastomeric material or follow-up cast elastic resin material are installed in advance on the border of described at least one through hole, thereby are formed vibration damping layer 6 between precast track plate 2 and positive stop lug boss 5.
In described step 3) in, in the time of the vertical described template of frame, form separation layer 7 in the bottom surface of precast track plate 2 in advance. Particularly, for example, at bottom surface bonding geotextiles, nonwoven or the Polypropylence Sheet of precast track plate 2 using as separation layer 7, or at described bottom surface spraying release coating as separation layer 7. And on the other hand, in described step 4) in, in the time laying infusion bag, the direct contact adjusting layer 3 in bottom surface of precast track plate 2.
In addition, adjusting layer 3 and positive stop lug boss 5 can integrated poured moulding or moulding by casting individually.
In addition, preferably, the intensity of base 4 reach design strength more than 70% after, can carry out described step 2), to ensure intensity and the steadiness of whole New-type plate non-fragment orbit.
In addition, according to the utility model thought, according to concrete track switch laying condition, can, by changing precast track plate apparent size, middle through hole parameter, also the utility model can be applied to switch area. So, the regulation reparation of China's trouble district differential settlement can adopt the mode of simple and fast.
Although exemplary embodiments of the present utility model is illustrated, but obviously it will be appreciated by those skilled in the art that, in the situation that not deviating from spirit of the present utility model and principle, can change, its scope claims with and equivalent in limit.
Claims (9)
1. a New-type plate non-fragment orbit, comprise rail (1), fastener, precast track plate (2), plate retrofilling is adjusted layer (3), base (4), positive stop lug boss (5), wherein: described New-type plate non-fragment orbit comprises that at least one precast track plate (2) and adjustment layer (3) form and be arranged on a corresponding base, described precast track plate (2) is arranged on described adjustment layer (3) above and is formed with at least one through hole at middle part, described positive stop lug boss has the shape corresponding with the shape of described through hole, rail (1) is arranged on described precast track plate (2), described track plates is middle transmission frame form.
2. a kind of New-type plate non-fragment orbit according to claim 1, wherein, on described base (4), positive stop lug boss (5) is set, its position is corresponding with transmission place in the middle of precast track plate, and positive stop lug boss (5) outside dimension is less than track plates through hole.
3. a kind of New-type plate non-fragment orbit according to claim 1, wherein, described positive stop lug boss (5) is that single or multiple, corresponding track plates through holes is single or multiple, during for single through hole, its through hole direction along ng a path length of side is greater than its horizontal length of side; For in the middle of multiple when transmission framework, square, the circular and shape that formed by straight line and camber line that its framework can be.
4. a kind of New-type plate non-fragment orbit according to claim 1, wherein, arranges vibration damping layer (6) between described precast track plate (2) through hole and positive stop lug boss (5).
5. a kind of New-type plate non-fragment orbit according to claim 4, wherein, vibration damping layer (6) is made up of elastomeric material; Described elastomeric material is prefabricated caoutchouc elasticity backing plate or cast-in-place two component polyurethane.
6. a kind of New-type plate non-fragment orbit according to claim 1, wherein, described adjustment layer (3) can be selected the one in self-compacting concrete, gravity flowing levelling mortar, polymer emulsion-cementitious composite mortar, emulsified asphalt-cementitious composite mortar or concrete material.
7. a kind of New-type plate non-fragment orbit according to claim 1, wherein, arranges separation layer (7) between the bottom surface of described precast track plate (2) and described adjustment layer (3); Separation layer (7) is formed by geotextiles, nonwoven or release coating.
8. a kind of New-type plate non-fragment orbit according to claim 1, wherein, is provided with gap between described contiguous prefabricated track plates (2), and between adjacent precast track plate (2) without any connection or packing material.
9. a kind of New-type plate non-fragment orbit according to claim 1, described base (4) is longitudinally unit fraction block structure, adjacent pans is provided with transverse slot between unit, and each base unit length can be the length that one or more track plates is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520709198.0U CN205242181U (en) | 2015-09-14 | 2015-09-14 | Novel board -like ballastless track structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520709198.0U CN205242181U (en) | 2015-09-14 | 2015-09-14 | Novel board -like ballastless track structure |
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| CN205242181U true CN205242181U (en) | 2016-05-18 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105200868A (en) * | 2015-09-14 | 2015-12-30 | 中国铁道科学研究院金属及化学研究所 | Novel slab ballastless track structure |
| CN107988852A (en) * | 2017-11-27 | 2018-05-04 | 中交隧道工程局有限公司 | The construction method of III plate-type non-fragment orbit new structures of tunnel location CRTS |
| CN109235150A (en) * | 2018-09-13 | 2019-01-18 | 中铁二院工程集团有限责任公司 | A kind of the plate-type ballastless track construction and construction method of overturn-preventing |
| CN109577108A (en) * | 2019-01-09 | 2019-04-05 | 扬州大学 | A kind of track plates of anti-stray current and preparation method thereof |
| WO2020049156A3 (en) * | 2018-09-07 | 2020-04-30 | Porr Bau Gmbh | Points arrangement having elastically mounted points base plates |
| CN114182576A (en) * | 2021-12-08 | 2022-03-15 | 中铁第一勘察设计院集团有限公司 | Adjustable plate type ballastless track suitable for area with large foundation deformation risk |
-
2015
- 2015-09-14 CN CN201520709198.0U patent/CN205242181U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105200868A (en) * | 2015-09-14 | 2015-12-30 | 中国铁道科学研究院金属及化学研究所 | Novel slab ballastless track structure |
| CN107988852A (en) * | 2017-11-27 | 2018-05-04 | 中交隧道工程局有限公司 | The construction method of III plate-type non-fragment orbit new structures of tunnel location CRTS |
| WO2020049156A3 (en) * | 2018-09-07 | 2020-04-30 | Porr Bau Gmbh | Points arrangement having elastically mounted points base plates |
| US20210332532A1 (en) * | 2018-09-07 | 2021-10-28 | Porr Bau Gmbh | Turnout arrangement with elastically supported turnout bases |
| CN109235150A (en) * | 2018-09-13 | 2019-01-18 | 中铁二院工程集团有限责任公司 | A kind of the plate-type ballastless track construction and construction method of overturn-preventing |
| CN109577108A (en) * | 2019-01-09 | 2019-04-05 | 扬州大学 | A kind of track plates of anti-stray current and preparation method thereof |
| CN114182576A (en) * | 2021-12-08 | 2022-03-15 | 中铁第一勘察设计院集团有限公司 | Adjustable plate type ballastless track suitable for area with large foundation deformation risk |
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