CN102352581A - Wide joint device for slab ballastless track - Google Patents
Wide joint device for slab ballastless track Download PDFInfo
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- CN102352581A CN102352581A CN2011102395539A CN201110239553A CN102352581A CN 102352581 A CN102352581 A CN 102352581A CN 2011102395539 A CN2011102395539 A CN 2011102395539A CN 201110239553 A CN201110239553 A CN 201110239553A CN 102352581 A CN102352581 A CN 102352581A
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- slabs
- cover plate
- joint device
- bed board
- embedded bolt
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Abstract
The invention specifically discloses a wide joint device for a slab ballastless track and solves the problems that the conventional wide joint device has bad waterproofing performance, wastes labor and time and has high cost when the longitudinal stress is adjusted. The wide joint device for the slab ballastless track comprises a plurality of slabs, wherein two longitudinal ends of each slab are step-shaped; further, the widths of the upper parts of the slabs are smaller than those of the lower parts of the slabs; the step horizontal surfaces of the slabs are all provided with embedded bolt sleeves; further, the step horizontal surfaces of the opposite sides of the adjacent slabs are covered with cover plates; further, water-expandable water stopping strips are arranged among the step horizontal surfaces and the lower end surfaces of the cover plates; the cover plates are provided with threaded holes corresponding to the positions of the embedded bolt sleeves; fixing bolts penetrate into the threaded holes and the embedded bolt sleeves; and polyurethane foam plastics are arranged among the adjacent slabs below the cover plates. The wide joint device for the slab ballastless track has reasonable and reliable structural design, is convenient for the adjustment work of the seasonal temperature difference longitudinal stress, prevents the slabs from hunching to cause the occurrence of a line hidden danger, improves the waterproofing performance, further, carries out hermetic protection, and has the advantages of time saving, labor saving, convenience in construction and low cost.
Description
Technical field
The present invention relates to wide jointing apparatus, be specially the wide jointing apparatus of a kind of plate-type slag-free orbit.
Background technology
In the plate-type slag-free orbit system, be example, form by reinforced concrete footing, CA mortar bed (the III template adopts self-compacting concrete), prefabricated road bed board, gapless rail etc. from bottom to top with CRTS II template formula.For globality and the ride comfort of keeping circuit enduringly, design is carried out the pre-stressed longitudinal couplet with the unit precast plate of railway roadbed.
Because the influence that changed by seasonal temperature; The pre-stressed longitudinal of paragraph of growing up joins railway roadbed and can produce bigger vertical extruding force; Special under the effect of summer high temperature; Under the effect that longitudinal dilatation is exerted oneself; The road bed board occurring encircles generally; Cause bed board to separate (gap occurring), have a strong impact on the ride comfort of traffic safety and circuit with the CA mortar bed.In this case, must carry out suitable adjustment to the vertical prestressing force that joins, and the gap that occurs is implemented the plugging filling maintenance.
For the ease of the vertically operation of connection, reserved the longitudinal slot of broad between road, the unit bed board, after the operation of the vertical couplet of enforcement, need thoroughly seal with cast-in-situ steel reinforced concrete, technical term is called wide joint treatment.
Wide joint treatment has two and mainly acts on, and the one, to indulging the couplet part and indulging couplet stress protection is provided, prevent to indulge the couplet part and become flexible and damage; The 2nd, wide seam scope is filled, prevent in the wide seam of rainwater intake duct bed board with the road bed board under, cause icing frost heave when running into cryogenic conditions, change and vertically join stress even the road bed board lifted and influence the circuit ride comfort, cause the potential safety hazard of driving accident.
The wide seam construction that adopts when receiving the seasonal temperature variation, generally ftractures, intakes at present; Change when needing that artificial adjustment is vertical to join stress simultaneously at temperature; Need the concrete of longitudinal slot place filling is all chiseled; After readjusting vertical couplet stretcher; Again seal with steel concrete again, and the circuit that thermal stresses causes is arched upward and then causes that the phenomenon of bed board gap carries out the sealing filling and repairing.Every year at least twice, time-consuming and extremely uneconomical.
Summary of the invention
The present invention is time-consuming and problem that cost is high when solving that existing wide jointing apparatus water resistance difference and adjustment are vertical to join stress, provides a kind of plate-type slag-free orbit wide jointing apparatus.
The present invention adopts following technical scheme to realize: the wide jointing apparatus of plate-type slag-free orbit; Comprise vertical two ends be stepped and upper width less than some roads bed board of lower width; Be equipped with the pre-embedded bolt sleeve on the ladder horizontal plane of road bed board; And adjacent road bed board is stamped cover plate on the ladder horizontal plane of a side in opposite directions; And and be provided with the water-swellable sealing rod between the cover plate lower surface; Have on the cover plate and the corresponding screwed hole in pre-embedded bolt sleeve position; Be installed with set bolt in screwed hole and the pre-embedded bolt sleeve, be provided with polyurethane foam plastics between the adjacent road bed board of under.During operation; Lay plate-type slag-free orbit road bed board according to design; Perfusion CA mortar bed; Under the suitable technique condition, implement vertical the couplet; The water-swellable sealing rod water-swellable sealing of under; The slit that anti-sealing bleeds between the adjacent road bed board is located, and polyurethane foam plastics seals longitudinal reinforcement and the vertical stretcher that joins simultaneously, further plays sealing function; When joining stress according to the seasonal variations adjusting is vertical; Unclamp set bolt and take off cover plate; Remove polyurethane foam plastics; The vertical stretcher that joins is adjusted, after the completion again the cast polyurethane foamed plastics will indulge and join reinforcing bar and stretcher sealing, cover cover plate; Tighten set bolt; Adjustment process is time saving and energy saving, can reuse simultaneously, provides cost savings in a large number.
The screwed hole place of cover plate upper end has counterbore, and the cover plate upper surface flushes with bed board upper surface, road, and this structure makes the bed board surfacing, and is more reasonable.
Reasonable in design of the present invention is reliable; Maintenance work after simplification construction and the operation; Realized that batch production is prefabricated; Overcome the workload that cuts and pour into a mould wide joint concrete repeatedly; Fundamentally solved the wide seam fluid concrete scene difficulty with maintenance of vibrating; Made things convenient for the vertical adjustment work that joins stress of the temperature difference in season especially, prevented that the railway roadbed plate arch from rising and cause circuit hidden danger to take place; Adopt horizontal bench and water-swellable sealing rod to cooperate and carry out waterproofing work, improved water resistance; Adopt polyurethane to carry out seal protection, have time saving and energy saving, easy construction and the low advantage of cost, be particularly useful for domestic CRTS II of applying and the wide joint treatment of researching and developing central III template formula ballastless track at present.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1-road bed board, 2-pre-embedded bolt sleeve, 3-cover plate, 4-water-swellable sealing rod, 5-screwed hole, 6-set bolt, 7-polyurethane foam plastics, 8-counterbore.
The specific embodiment
The wide jointing apparatus of plate-type slag-free orbit; Comprise vertical two ends be stepped and upper width less than some roads bed board 1 of lower width; Be equipped with pre-embedded bolt sleeve 2 on the ladder horizontal plane of road bed board 1; And adjacent road bed board 1 is stamped cover plate 3 on the ladder horizontal plane of a side in opposite directions; And and be provided with water-swellable sealing rod 4 between cover plate 3 lower surfaces; Have the screwed hole 5 corresponding on the cover plate 3 with pre-embedded bolt sleeve 2 positions; Be installed with set bolt 6 in screwed hole 5 and the pre-embedded bolt sleeve 2, be provided with polyurethane foam plastics 7 between the adjacent road bed board 1 of cover plate 3 belows.Screwed hole 5 places of cover plate 3 upper ends have counterbore 8, and cover plate 3 upper surfaces flush with road bed board 1 upper surface.In the practical implementation process, leave the gap between cover plate 3 vertical both ends of the surface and the road bed board 1 ladder vertical plane, and leave certain interval between cover plate 3 lower ends and the polyurethane foam plastics 7.
Claims (2)
1. wide jointing apparatus of plate-type slag-free orbit; It is characterized in that: comprise vertical two ends be stepped and upper width less than some roads bed boards (1) of lower width; Be equipped with pre-embedded bolt sleeve (2) on the ladder horizontal plane of road bed board (1); And adjacent road bed board (1) is stamped cover plate (3) on the ladder horizontal plane of a side in opposite directions; And and be provided with water-swellable sealing rod (4) between cover plate (3) lower surface; Have the screwed hole (5) corresponding on the cover plate (3) with pre-embedded bolt sleeve (2) position; Be installed with set bolt (6) in screwed hole (5) and the pre-embedded bolt sleeve (2), be provided with polyurethane foam plastics (7) between the adjacent road bed board (1) of cover plate (3) below.
2. the wide jointing apparatus of plate-type slag-free orbit according to claim 1 is characterized in that: the screwed hole (5) of cover plate (3) upper end locates to have counterbore (8), and cover plate (3) upper surface flushes with road bed board (1) upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110239553 CN102352581B (en) | 2011-08-20 | 2011-08-20 | Wide joint device for slab ballastless track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110239553 CN102352581B (en) | 2011-08-20 | 2011-08-20 | Wide joint device for slab ballastless track |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102352581A true CN102352581A (en) | 2012-02-15 |
| CN102352581B CN102352581B (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110239553 Active CN102352581B (en) | 2011-08-20 | 2011-08-20 | Wide joint device for slab ballastless track |
Country Status (1)
| Country | Link |
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| CN (1) | CN102352581B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938502A (en) * | 2014-05-05 | 2014-07-23 | 洛阳双瑞橡塑科技有限公司 | Detachable rail walking cover plate |
| CN107237233A (en) * | 2017-08-07 | 2017-10-10 | 张家港市兴鸿达基础有限公司 | Anti- expansion prefabricated components |
| CN113404091A (en) * | 2021-05-28 | 2021-09-17 | 内蒙古送变电有限责任公司 | Construction method for encapsulating and splicing prefabricated square culvert foundation and cable trench foundation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201358516Y (en) * | 2009-01-21 | 2009-12-09 | 济南市住宅产业化发展中心 | Mounting joint structure of inner partition plates |
| CN201695282U (en) * | 2010-01-19 | 2011-01-05 | 北京城建设计研究总院有限责任公司 | Shear expansion plate for damping steel spring floating ballast bed |
| CN202247539U (en) * | 2011-08-20 | 2012-05-30 | 中铁十七局集团第三工程有限公司 | Wide seaming device of plate-type ballastless track |
-
2011
- 2011-08-20 CN CN 201110239553 patent/CN102352581B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201358516Y (en) * | 2009-01-21 | 2009-12-09 | 济南市住宅产业化发展中心 | Mounting joint structure of inner partition plates |
| CN201695282U (en) * | 2010-01-19 | 2011-01-05 | 北京城建设计研究总院有限责任公司 | Shear expansion plate for damping steel spring floating ballast bed |
| CN202247539U (en) * | 2011-08-20 | 2012-05-30 | 中铁十七局集团第三工程有限公司 | Wide seaming device of plate-type ballastless track |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938502A (en) * | 2014-05-05 | 2014-07-23 | 洛阳双瑞橡塑科技有限公司 | Detachable rail walking cover plate |
| CN107237233A (en) * | 2017-08-07 | 2017-10-10 | 张家港市兴鸿达基础有限公司 | Anti- expansion prefabricated components |
| CN113404091A (en) * | 2021-05-28 | 2021-09-17 | 内蒙古送变电有限责任公司 | Construction method for encapsulating and splicing prefabricated square culvert foundation and cable trench foundation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102352581B (en) | 2013-12-25 |
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