EP2984230A1 - Sleepers having elevated rail fastening as protection against sand coverage - Google Patents
Sleepers having elevated rail fastening as protection against sand coverageInfo
- Publication number
- EP2984230A1 EP2984230A1 EP14714570.0A EP14714570A EP2984230A1 EP 2984230 A1 EP2984230 A1 EP 2984230A1 EP 14714570 A EP14714570 A EP 14714570A EP 2984230 A1 EP2984230 A1 EP 2984230A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- track
- section according
- track section
- sleepers
- rail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004576 sand Substances 0.000 title description 16
- 241001669679 Eleotris Species 0.000 claims description 20
- 230000001965 increasing effect Effects 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 210000002435 tendon Anatomy 0.000 claims description 2
- 230000001174 ascending effect Effects 0.000 description 4
- 230000003028 elevating effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/22—Special sleepers for switches or crossings; Fastening means therefor
Definitions
- the invention relates to a track section for rail vehicles with successively arranged thresholds and rails supported on the sleepers, wherein the sleepers each have spacing areas for the rails which are arranged at a distance from one another.
- the invention further relates to a track with such a track section and sleepers for such a track section.
- the sleepers of a track serve to keep the rails at a defined distance from each other.
- the rails are fastened in support areas of the sleepers, the fastening being effected either by means of direct screw connection, in the case of the sleeper screws screwed into the sleepers the rail foot, e.g. by means of resilient tensioning means, or by means of underlay plates which are fastened to the sleeper with sleeper screws and which have the tensioning means (for example Pandrol clips) for holding down the rail foot.
- the sleepers can be made of wood, steel or concrete or composite materials.
- the thresholds lie in a track bed, which consists mostly of gravel.
- the sleepers or other rail mounting brackets can also be integrated in a superstructure made of concrete or asphalt.
- the present invention is basically applicable regardless of the type of rail fastening, regardless of the material of the sleepers and regardless of the design of the track bed.
- the driving on a track can be made difficult or even prevented by various environmental influences.
- areas with Airborne sand drifts for example, exist for track systems, especially in the area of points, great operational and safety problems by the overlapping of the tracks with sand and the ingress of sand into the points system, so that a regular inspection of the track and possibly a cleaning before driving is required .
- the elimination of sand drafts so far takes place either manually or with the help of clearing vehicles, such as excavators, which naturally means a lot of effort.
- the cleaning of switch systems can often only be done manually.
- WO 2012/135913 AI a design of a rail system for use in desert areas has become known in the .
- the sleepers and rails are to be stored on a separate, open and permeable support structure.
- This measure is structurally very complex and can also be used only in the new production of rail and switch systems.
- the present invention therefore aims to provide a track to be realized as inexpensively as possible, with the obstruction of the rail traffic by sand drifts can be avoided as much as possible and can be used both in the new production of tracks and in retrofits.
- the invention essentially provides, in the case of a track section of the type mentioned at the outset, that the sleepers are designed to be raised in the bearing areas and possibly in the area lying between the bearing areas.
- the airfoil approaching the side of the track is subdivided into a plurality of flow channels, each extending between two adjacent sleepers, whereby this flow splitting leads overall to a reduction in the flow cross section and therefore to an increase in the flow velocity in the region of the flow channels, which helps to transport the sand underneath the rails to the other side of the track so that there are no sand deposits in the track area.
- This nozzle effect can be further improved if, as corresponds to a preferred development, the elevated contact areas of the threshold are formed rounded at their ends in plan view.
- the increase is made such that a free space remains between a lower edge of the rails and the track bed, wherein the free space preferably extends over a vertical height of at least 8 cm, in particular at least 12 cm.
- the threshold increase can basically either be provided only in the support areas or additionally in the intermediate area.
- the design is preferably such that the sleepers in the support regions are formed elevated relative to the region lying between the support regions.
- the threshold has a continuous increase, which extends over all contact areas without interruption.
- care must be taken to ensure sufficient clearance between the lower edge of the rails and the track bed, wherein it is preferably provided in this connection that the elevation be at least 6 cm, preferably at least 9 cm, particularly preferably at least 12 cm is.
- accumulations of sand can preferably be avoided by virtue of the fact that the threshold elevation (s) are (ascending) ascending or descending at their ends.
- the raised area (s) can or may be formed integrally with the rest of the body of the sleepers, which is particularly advantageous in the case of a new production of a track.
- the threshold a of substantially uniform height formed body-forming and at least one increasing includes fixed to the base body increasing element.
- the retrofit is in this case such that the rails are released from the conventionally formed thresholds, that thereafter arranged the at least one elevation element in the respective region of the threshold and connected to the main body of the threshold, and that the rails finally secured to the at least one elevation element become.
- the at least one elevation element can be designed, for example, as a metal body, wherein the lateral rounded areas of the at least one elevation element can be formed by separate caps.
- the rail fastening can be done in a conventional manner using underlay plates, the training in this context is preferably made such that in each case a serving as a rail support base plate is secured in the elevated support areas of the thresholds.
- the base plate may in this case holding and / or tendons for rail fastening means.
- the base plate can in this case be attached to the threshold as in conventional embodiments of sleepers by means of sleeper screws, wherein the sleeper screws must be designed to be extended by an amount corresponding to the increase of the thresholds.
- a preferred embodiment provides in this context that the base plate are fastened by means of sleeper screws, which pass through holes of the at least one elevation element and are screwed into the base body. In such an embodiment, however, due to the extended sleeper screws, increased bending loads of the sleeper screws occur.
- the sleeper screws are therefore sunk in the at least one elevation element and the corresponding openings are flush with cover caps.
- thresholds sleeper screws can be used with a conventional length, with a corresponding stability of the thresholds is also ensured in the area of the raised support areas, that the reinforcements of the thresholds are formed reaching into these elevated support areas.
- the track section provided with the elevations according to the invention is designed as a switch or crossing. This takes into account the fact that drift sand drifts are particularly common especially in the area of turnouts or crossings, with a cleaning of turnout systems is particularly difficult. If the elevations according to the invention are provided only in the region of the switchpoint or the intersection and the subsequent transition track sections do not have such elevations, suitable measures must be taken to achieve the required level adaptation. This is preferably ensured by the fact that the track in the transition track sections is ramped up or down. When choosing the length of the transition track section is to take care for a sufficiently large radius transition in the trough and in the butt.
- the level compensation takes place in such a way that the track bed is lower in the track section designed as a switch or crossing with respect to the track bed of the transition track sections.
- the extent of the removal of the track bed essentially corresponds to the extent of the increase in the elevated contact areas of the sleepers.
- FIG. 2 shows a plan view of the embodiment according to FIG. 1
- FIG. 3 shows a view according to FIG. 1 in a modified embodiment
- FIG. 4 shows a cross-sectional view of one
- FIG. 5 shows a plan view of the embodiment according to FIG. 4
- FIG. 6 shows the layout of a track with a switch
- FIG. 7 shows a representation of the height profile of the track according to FIG. 6 in a first embodiment
- FIG. 8 is an illustration of the height profile of the track according to FIG. 6 in a second embodiment
- FIG. 9 is a section along the line AA of FIG. 6
- FIG. 10 is a section along the line CC of FIG. 6
- FIG. 11 is a section according to FIG 6 in a first embodiment
- FIG. 12 is a section along the line AA of FIG. 6
- FIG. 13 is a section along the line CC of FIG. 6
- FIG. 14 is a section along the line BB of Fig. 6 in a second 15, a side view according to the arrow XV of FIG. 9, and FIG. 16 a side view according to the arrow XVI of FIG. 12.
- a conventional threshold is shown in fragmentary form and designated 1.
- the threshold is formed, for example, as a concrete sleeper and has a planar surface 2 in a conventional manner.
- an elevation element 4 is attached to the base body 1 of the threshold, the elevation element 4 being mounted on the flat surface 2 of the base with the interposition of a plastic intermediate layer 5.
- body 1 rests.
- the elevation element 4 has a substantially cuboid shape and has a width that is slightly smaller than the width of the main body 1 of the threshold.
- the cuboidal elevation element 4 is provided at its two ends with Kappeneiementen 6, the ramp-shaped ascending and as in the plan view of FIG.
- a base plate 7 is arranged, on which the rail foot of the rail 3 rests between two rib-like elevations 8.
- a plastic intermediate layer 9 can be arranged between the base plate 7 and the rail foot of the rail 3.
- the elevation element with the rounded cap parts may e.g. be made of steel or reinforced from a steel fiber or plastic reinforced concrete.
- the provision of the elevation element 4 results in that the rail 3 is positioned substantially higher than the conventional arrangement in which the rail is arranged on the surface 2 of the body 1 of the threshold, so that a clearer in the free area between two successive thresholds Free space between the lower edge of the Rail 3 and the track bed results.
- This clearance forms a flow cross section for wind-carried sand, so that the sand is blown under the rails without causing drift-sand drifts in the area of the track.
- the elevating element 4 has countersinks 11, so that the sleeper screws 10 can be arranged in a corresponding lowered position.
- the sleeper screws 10 can be made much shorter than in the embodiment of FIG. 1.
- the bolt load can be significantly reduced.
- the attachment of the base plate 7 on the elevation element 4 takes place in the embodiment shown in Fig. 3 without screws, for example by means of a weld.
- FIG. 4 the inventive design of the threshold in the region of a switch is shown, so that the base plate 7 deviating from Fig. 3 now wearing a slide 12, on which a tongue rail, not shown, with respect to the stock rail 3 between a arrival or a storage position can be moved.
- the fastening of the base plate 7 on the elevation element 4 takes place by means of separate screws 13, which, as shown in the plan view according to FIG. 5, are arranged farther outward than the sleeper screws 10.
- a track 14 is shown having a switch 15 in a central portion.
- the thresholds not shown in FIG. 6, have elevations, whereas those leading to the switch and away from the latter have no such elevations. It is therefore level of equalization, for which two alternative versions are available.
- the track is formed in ascending or descending ramp direction in transition rail sections 16 adjoining the switch 15, wherein the ramp is preferably realized by increasing or decreasing the thresholds Have height trained elevating elements.
- the track bed runs in the embodiment of FIG. 7 over the entire track at the same level.
- the leveling is ensured by the fact that the track bed in the area of the switch 15 is lower in relation to the track bed of the transition track sections 16, wherein the level of the lowered track bed is indicated schematically by 17.
- FIGS. 9 to 11 now show sectional views in the region of the switch 15, an embodiment of the invention being shown as a retrofit kit.
- FIGS. 12 to 14 an embodiment is shown which can be used in a new production of the track.
- the same reference numbers are used in FIGS. 9 to 14 as in FIGS. 1 to 5.
- FIG. 9 shows a sectional view in the region of the tongue rails 18 of the switch 15, wherein the tongue rails 18 can be displaced on the slide chair 12 in the direction of the double arrow 19.
- the increased arrangement of the rails is again possible by arranging elevating elements 4 on a threshold 1 designed as a conventional base body.
- FIG. 10 the intermediate rail area shown in FIG. 10, in which a total of four support areas 20 for rails 3 are provided.
- a total of three elevation elements 4 are provided, wherein the underlay plates 7 carry in the two outer contact areas the struts 22 and in the middle support area a center piece 23.
- the track bed 25 extends with its level surface also laterally of the end faces of the thresholds, as shown by way of example in Fig. 11.
- FIGS. 12 to 14 essentially corresponds to the design according to FIGS. 9 to 11 with the difference that, instead of conventional sleepers with separate elevating elements 4, thresholds are used which already have elevated areas 24 integrally formed by the manufacturer.
- the attachment of the base plates 7 can be done in this case by means of sleeper screws, which have a conventional length, wherein the cooperating with the sleeper screws internal thread of the thresholds 1 is formed in the region of the elevations 24.
- the free space formed between the track bed 25 and the lower edge of the rail 3 can be seen due to the threshold elevation y.
- the through the increase y caused increased vertical distance is denoted by x.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Railway Tracks (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA277/2013A AT514166B1 (en) | 2013-04-10 | 2013-04-10 | Track section for rail vehicles |
PCT/AT2014/000044 WO2014165871A1 (en) | 2013-04-10 | 2014-03-06 | Sleepers having elevated rail fastening as protection against sand coverage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2984230A1 true EP2984230A1 (en) | 2016-02-17 |
EP2984230B1 EP2984230B1 (en) | 2019-02-06 |
Family
ID=50423917
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14714570.0A Active EP2984230B1 (en) | 2013-04-10 | 2014-03-06 | Railway sleeper having an elevated rail fastening for preventing blow sand deposit |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2984230B1 (en) |
CN (1) | CN105247138B (en) |
AT (1) | AT514166B1 (en) |
AU (1) | AU2014252723B2 (en) |
MA (1) | MA38550B1 (en) |
TN (1) | TN2015000447A1 (en) |
WO (1) | WO2014165871A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015168714A1 (en) * | 2014-05-08 | 2015-11-12 | Ssl-Schwellenwerk Und Steuerungstechnik Linz Gmbh | Sleeper |
CN108425293A (en) * | 2018-05-15 | 2018-08-21 | 中铁第四勘察设计院集团有限公司 | Insert the interim transition structure of causeway trouble in a kind of both wired non-fragment orbit location |
CN110004778A (en) * | 2019-05-16 | 2019-07-12 | 武汉新丝路快铁物流有限公司 | The track girder and its processing technology of suspension type rail communications and transportation |
CN112014848B (en) * | 2020-02-11 | 2023-06-23 | 深圳技术大学 | Sleeper positioning method, sleeper positioning device and electronic equipment |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1149632A (en) * | 1915-04-10 | 1915-08-10 | Minor E Chamberlain | Tie. |
SE470359B (en) * | 1992-06-18 | 1994-01-31 | Abetong Teknik Ab | Methods of manufacture of a concrete gear grinder block as well as matrix and matrix set for use in application of the method |
CN1844578A (en) * | 2005-12-09 | 2006-10-11 | 中铁八局集团有限公司 | Vibration damping and sheet type ballastless track |
CN101046075A (en) * | 2006-03-29 | 2007-10-03 | 中铁八局集团有限公司 | No-circulating reinforced truss for double-block sleeper and its production process |
AT503772B1 (en) * | 2006-05-19 | 2008-06-15 | Getzner Werkstoffe Holding Gmbh | SOFT FOR A RAILING SYSTEM FOR RAIL VEHICLES |
CN101503870B (en) * | 2008-12-03 | 2011-10-05 | 中铁八局集团第一工程有限公司 | Construction method for two-block unballasted track bed board |
DE102011015210A1 (en) * | 2011-03-25 | 2012-09-27 | Strabag Rail Gmbh | Roadway for rail vehicles and rail support for such a roadway |
DE102012102598A1 (en) * | 2012-03-26 | 2013-09-26 | Ed. Züblin Ag | Track path e.g. fixed track path, for rail-bound vehicle, has passage part formed by lower side of rail, upper side of track supporting body and rail supports, where passage part enables obtaining uniform wind stream by aerodynamic geometry |
-
2013
- 2013-04-10 AT ATA277/2013A patent/AT514166B1/en active
-
2014
- 2014-03-06 TN TN2015000447A patent/TN2015000447A1/en unknown
- 2014-03-06 WO PCT/AT2014/000044 patent/WO2014165871A1/en active Application Filing
- 2014-03-06 EP EP14714570.0A patent/EP2984230B1/en active Active
- 2014-03-06 CN CN201480020514.1A patent/CN105247138B/en active Active
- 2014-03-06 MA MA38550A patent/MA38550B1/en unknown
- 2014-03-06 AU AU2014252723A patent/AU2014252723B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
AT514166B1 (en) | 2015-08-15 |
WO2014165871A1 (en) | 2014-10-16 |
MA38550B1 (en) | 2017-06-30 |
TN2015000447A1 (en) | 2017-04-06 |
CN105247138A (en) | 2016-01-13 |
AU2014252723A1 (en) | 2015-10-08 |
MA38550A1 (en) | 2016-10-31 |
CN105247138B (en) | 2019-02-15 |
AT514166A1 (en) | 2014-10-15 |
EP2984230B1 (en) | 2019-02-06 |
AU2014252723B2 (en) | 2017-03-30 |
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