GB2343205A - Construction of track side platforms - Google Patents
Construction of track side platforms Download PDFInfo
- Publication number
- GB2343205A GB2343205A GB9823437A GB9823437A GB2343205A GB 2343205 A GB2343205 A GB 2343205A GB 9823437 A GB9823437 A GB 9823437A GB 9823437 A GB9823437 A GB 9823437A GB 2343205 A GB2343205 A GB 2343205A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blocks
- platform
- trackside
- track
- facing
- 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.)
- Withdrawn
Links
- 238000010276 construction Methods 0.000 title claims description 26
- 238000000034 method Methods 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000004794 expanded polystyrene Substances 0.000 claims abstract description 8
- 239000004793 Polystyrene Substances 0.000 claims abstract description 3
- 229920002223 polystyrene Polymers 0.000 claims abstract description 3
- 230000010485 coping Effects 0.000 claims description 11
- 239000004567 concrete Substances 0.000 claims description 10
- 238000011065 in-situ storage Methods 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 2
- 239000011150 reinforced concrete Substances 0.000 claims description 2
- 239000011178 precast concrete Substances 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 2
- 239000011211 glass fiber reinforced concrete Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B1/00—General arrangement of stations, platforms, or sidings; Railway networks; Rail vehicle marshalling systems
- B61B1/02—General arrangement of stations and platforms including protection devices for the passengers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F1/00—Construction of station or like platforms or refuge islands or like islands in traffic areas, e.g. intersection or filling-station islands; Kerbs specially adapted for islands in traffic areas
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
A method of constructing a track side platform for a system such as a railway or the like, comprises, providing blocks of expanded polystyrene (22) at the track side in a configuration corresponding generally to the shape and position of the platform to be constructed, and surfacing the top and sides of the polystyrene blocks in a stronger, more durable material such as cast in place (26) or pre-cast concrete slabs.
Description
2343205 Construction of Trackside Platforms This invention relates to the
constructions of trackside platforms for railways, tramways or the like.
Strict safety rules are enforced for the safety of persons involved in construction work at the trackside of a railway. For example, when work is undertaken very close to a railway track, a barrier is erected to prevent access to the track and all traffic on the track is stopped during the work. Stopping all traffic on the track, however, represents a financial loss to the company using the track and therefore it is important that the time for which all traffic is stopped should be kept low.
On the other hand, when a trackside platform is being constructed, the workers have to work close to the track because that is the very position in which it is desired to place the platform.
It is an object of the invention to provide a method of constructing a trackside platform which reduces the need to-stop all traffic on the adjacent track for an extended period.
The present invention provides a method of constructing a trackside platform for a railway, a tramway or the like, comprising:
providing blocks of expanded polystyrene at the trackside in a configuration corresponding generally to the shape and position of the platform to be constructed; and surfacing the top and sides of the polystyrene blocks in stronger, more durable material.
Such a method has the advantage that because expanded polystyrene is a very light material used in a pre-fabricated form it is very quickly and easily laid in position so that construction work can proceed rapidly. In contrast, the construction of a trackside platform entirely in a conventional building material such as concrete would take much longer to accomplish. Thus, the invention enables work to proceed more quickly, so reducing the time for which traffic has to be stopped on the track. A further advantage of the invention is that it is relatively easy to dismantle the platform so constructed, should it be decided that it is no longer required. Yet another advantage is that the lightness of the construction enables the platform to be built on land of low load-bearing capacity. Preferably, the top and sides of the blocks are surfaced using concrete. That provides a relatively inexpensive construction. 25 Advantageously, the method comprises using only prefabricated components for parts of the platform within a predetermined distance of the nearest rail and fitting the said pre- fabricated parts whilst stopping traffic on the track. By this means, traffic is stopped for the operations requiring the workers to be closest to the track and the use of pre-fabricated components keeps the time for which traffic is stopped relatively short.
The method may include applying surfacing material to'the top of the expanded polystyrene blocks at locations further than a predetermined distance from the nearest rail whilst permitting traffic on the track but preventing access thereto by construction workers by means of a barrier. By this means, for much of the construction, work can proceed without stopping traffic on the track.
The method may include preparing the ground for the blocks, and laying the blocks whilst permitting traffic on the track but preventing access thereto by construction workers by means of a barrier at a predetermined distance from the nearest rail. Again, much of the construction work can proceed without stopping traffic on the track.
The step of preparing the ground may include preparing a formation level. That provides a simple, quick and relatively inexpensive foundation for the blocks.
It is preferred that the predetermined distance be 4 feet (1220 millimetres). This distance gives an adequate level of safety, enables the platform to be placed sufficiently close to the track, and yet allows work to 5 proceed whilst keeping the interruption to traffic low.
The method may include fitting cantilevered coping members to the or each trackward edge of the blocks to provide a safety recess under the platform edge. Such members are readily available commercially.
- The method preferably includes using a recess provided at the top of the or each trackward edge of the blocks to accommodate an inner edge portion of the coping members. Such a construction facilitates the fitting of the coping members. 15 The method may include casting surfacing material in situ on the top of the said blocks. Such a step is simple and relatively inexpensive. A further, hard wearing, layer of material, such as asphalt, may be provided on top of the cast layer if desired. 20 The surfacing material may be fibre-mesh reinforced concrete. Such material is both strong and relatively inexpensive. Preferably, a geomembrane is provided between the said blocks and the surfacing material. Such a membrane helps prevent damage from chemical spillage and can, when a suitable material is used, provide a measure of fire protection.
Advantageously, the method includes attaching metal brackets to the surfacing material and using the brackets for fixing components on the or each trackside edge of the blocks. Brackets enable the trackside components to be fixed relatively quickly so keeping low the disruption to traffic on the adjacent track.
The method may include fixing the brackets to the surfacing material by means of bolts. The bolts may be embedded in the above-mentioned layer cast in situ and provide a particularly simple means of fixing the brackets.
Advantageously, the method includes using each metal bracket to fix both a facing component and a coping component. Such a construction is particularly economical.
The method may include using facing components in the form of interlocking facing panels on the or each trackward side of the blocks. The inter-locking panels provide-a weatherproof surface for the blocks.
The method may include using spaced-apart facing posts on the or each trackward side of the blocks and sliding facing panels, interlocking with the posts into the spaces between the posts. The sliding in of the panels is quickly accomplished and may take place sufficiently far from the nearest rail for traffic to be allowed on the track while the panels are being positioned. The panels may be pre-cast concrete planks.
Instead, facing components may be fixed to the two opposite sides of the blocks by means of fixing rods passing through the blocks. In this construction, no brackets are required for fixing the facing components.
The invention is applicable to a platform constructed at a location where there is an adjacent track on only one side or to a platform constructed at a location with an adjacent track on each side.
The invention also provides a trackside platform constructed by a method according to the invention.
In particular, the platform may be a railway platform.
The construction of trackside platforms in accordance with the invention will now be described, by way of example only, with reference to the accompanying drawings, in which:
Figure 1 illustrates diagrammatically the use of a first set of safety regulations; Figure 2 illustrates diagrammatically the use of a second set of safety regulations; Figures 3A to 3E show steps in a first method of constructing a trackside platform according to the invention; Figure 3F shows a detail of the construction of the first method; Figure 3G shows a typical cross-section through the construction of the first method; Figures 4A to 4D show steps in a second method of constructing a trackside platform according to the invention; Figure 4E shows a detail of the construction of the second method; and Figure 4F shows a typical cross-section through the construction of the second method.
Referring to the accompanying drawings, methods of constructing a platform at a location where there is an adjacent track on only one side will now be described.
The use of a first set of safety regulations termed "safe system of work type A" is illustrated in Figure 1. Two adjacent railway tracks 2 and 4 are shown and a construction site 6. A site fence 8 is erected between the tracks 2, 4 and the construction site 6 to provide a barrier between construction workers 10 and the railway tracks 2 and 4. The fence 8 is spaced a predetermined 5 distance d from the nearest rail 12, d being four feet (1220 millimetres). On the closer track 2 to the construction site 6, traffic is permitted to move at a speed of forty miles per hour or less. On the more distant track 4, no speed restriction is imposed.
A second set of safety regulations termed "safe system of work type B" is illustrated in Figure 2 which corresponds generally to Figure 1 except that the site fence 8 is replaced by a site fence 8' located between the tracks 2 and 4 and spaced a distance d', either four feet (1220 millimetres) or six feet six inches (2000 millimetres) from the nearest rail 14 of the track 4. No traffic is permitted on the track 2. On track 4, traffic is restricted to a speed of forty miles per hour or less if dI is four feet (1220 millimetresO and no speed restriction is imposed if d, is six feet six inches (2000 millimetres).
Figure 3A shows a first step in a first method according to the invention. Under safe system of work type A, a formation level 20, for example, based on sand with the addition of some cement, is prepared close to the site fence within the safe fenced area and blocks of expanded polystyrene 22 are laid on the prepared formation level 20 at the trackside in a configuration corresponding generally to the shape and position of the platform to be constructed. Only one such block is shown in the drawings, further blocks are added in line according to the length of platform required, the end blocks sloping away to ground level in the usual manner for a trackside platform.
Figure 3B shows the second step in which, under safe system of work type A, a protective geomembrane 24 is applied to the blocks 22 and a glass fibre reinforced concrete slab 26 is cast in situ on the top of the blocks 22. The slab 26 includes additional steel reinforcement (not shown) and bolts (not shown) for fastening brackets to the described shortly.
Figure 3C shows the third step in which, under safe system of work type B, steel support brackets 28 and slotted concrete posts 30 are installed on the trackward side of the platform.
Figure 3D shows the fourth step in which, under safe system of work type A, pre-cast concrete facing panels 32 are slid into position in grooves in the posts 30.
Figure 3E shows the fifth and sixth steps in which, under safe system of work type B, coping stones 34 are mounted on the brackets 28 in a recess 36 provided in the trackward edge of the blocks 20. Under safe system of work type A, a hot rolled asphalt wearing course 38, for example, an asphalt or concrete finish, is provided on the top surface of the platform.
The remaining side of the platform is faced with concrete either cast in situ or applied as pre-fabricated panels (not shown). The ends of the platform are treated similarly.
Figure 4A shows a first step in second method according to the invention. Under safe system of work type A, a formation level 40, for example, based on sand with the addition of some cement, is prepared close to the site fence within the safe fenced area and blocks of expanded polystyrene 42 are laid on the prepared formation level 40 at the trackside in a configuration corresponding generally to the shape and position of the platform to be constructed. Only one such block is shown in the drawings, further blocks are added in line according to the length of platform required, the end blocks sloping away to ground level in the usual manner for a track3ide platform.
Figure 4B shows the second step in which, under safe system of work type A, a protective geomembrane 44 is applied to the blocks 42 and a glass fibre reinforced concrete slab 46 is cast in situ on the top of the blocks 42. The slab 46 includes additional steel reinforcement (not shown) and bolts (not shown) for fastening brackets to the described shortly.
Figure 4C shows the third step in which, under safe system of work type B, steel support brackets 48 and interlocking pre-cast concrete panels 50 are installed on the trackward side of the platform.
Figure 4D shows the fourth and fifth steps in which, under safe system of work type B, Figure 3E shows the fifth and sixth steps in which, under safe system of work type A, coping stones 54 are mounted on the brackets 48 in a recess 56 provided in the trackward edge of the blocks 40. A hot rolled asphalt wearing course 58 is provided on the top surface of the platform.
The remaining side of the platform is faced with concrete either cast in situ or applied as pre-fabricated panels (not shown). The ends of the platform are treated similarly.
Some typical dimensions are given below by way of example:
Position of the platform edge relative to the nearest running rail: 730 to 771 millimetres horizontally and 915 metres vertically.
Refuge space under the platform edge: at least 300 millimetres wide and 480 millimetres high for the full length of the platform.
Concrete slab cast in situ: 200 millimetre thick class C30 concrete.
Coping stones: 394 to 435 millimetres overlying the platform, 479 to 520 millimetres overhanging the platform 5 edge.
If the platform is to be constructed as an island platform between two tracks, coping stones would be provided on both sides.
Instead of concrete, a known asbestos substitute 10 could be used for facing the sides of the platform.
The invention is applicable to many different sorts of trackside platform including tramways and overground sections of an underground railway.
13 -
Claims (24)
- C L A I M S: 1. A method of constructing a trackside platform for arailway, a tramway or the like, comprising: 5 providing blocks of expanded polystyrene at the trackside in a configuration corresponding generally to the shape and position of the platform to be constructed; and surfacing the top and sides of the polystyrene blocks in stronger, more durable material.
- 2. A method as claimed in claim 1, wherein the top and sides of the blocks are surfaced using concrete.
- 3. A method as claimed in claim 1 or claim 2, comprising using only prefabricated components for parts of the platform within a predetermined distance of the nearest rail and fitting the said pre-fabricated parts whilst stopping traffic on the track.
- 4. A method as claimed in any preceding claim, including applying surfacing material to the top of the expanded polystyrene blocks at locations further than a predetermined distance from the nearest rail whilst permitting traffic on the track but preventing access thereto by construction workers by means of a barrier.
- 5. A method as claimed in any preceding claim, including preparing the ground for the blocks, and laying the blocks whilst permitting traffic on the track but preventing access thereto by construction workers by means of a barrier at a predetermined distance from the nearest rail.
- 6. A method as claimed in claim 5, wherein the step of preparing the ground includes preparing a formation level.
- 7. A method as claimed in any of claims 3 to 6, wherein the predetermined distance is 4 feet (1220 millimetres).
- 8. A method as claimed in any preceding claim, including fitting cantilevered coping members to the or each trackward edge of the blocks to provide a safety recess under the platform edge.
- 9. A method as claimed in claim 8, including using a recess provided at the top of the or each trackward edge of the blocks to accommodate an inner edge portion of the coping members.
- 10. A method as claimed in any preceding claim, including casting surfacing material in situ on the top of the said blocks.
- 11. A method as claimed in claim 10, wherein the surfacing material is fibre-mesh reinforced concrete.
- 12. A method as claimed in any preceding claim, including providing a geomembrane between the said blocks and the surfacing material.-
- 13. A method as claimed in any preceding claim, including attaching metal brackets to the surfacing material and using the brackets for fixing components on the or each trackside edge of the blocks.
- 14. A method as claimed in claim 13, including fixing the brackets to the surfacing material by means of bolts.
- 15. A method as claimed in claim 13 or claim 14, including using each metal bracket to fix both a facing component and a coping component.
- 16. A method as claimed in any preceding claim, including using facing components in the form of inter locking facing panels on the or each trackward side of the blocks.
- 17. A method as claimed in any of claims I to 15, including using spaced apart facing posts on the or each trackward side of the blocks and sliding facing panels, interlocking with the posts into the spaces between the posts.
- 18. A method as claimed in of claims 1 to 12, in which facing components are fixed to the two opposite sides of the blocks by means of fixing rods passing through the blocks.
- 19. A method as claimed in any preceding claim, wherein the platform is constructed at a location where there is an adjacent track on only one side.16-
- 20. A method as claimed in any of claims 1 to 19, wherein the platform is constructed at a location with an adjacent track on each side.
- 21. A method of constructing a trackside platform substantially as herein described with reference to, and as illustrated by, Figures 3A to 3G of the accompanying drawings.
- 22. A method of constructing a trackside platform substantially as herein described with reference to, and as illustrated by, Figures 4A to 4F of the accompanying drawings.
- 23. A trackside platform constructed by a method as claimed in any preceding claim.
- 24. A platform as claimed in claim 23, wherein the platform is a railway platform.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9823437A GB2343205A (en) | 1998-10-26 | 1998-10-26 | Construction of track side platforms |
| EP99308254A EP0997581A1 (en) | 1998-10-26 | 1999-10-20 | Construction of trackside platforms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9823437A GB2343205A (en) | 1998-10-26 | 1998-10-26 | Construction of track side platforms |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9823437D0 GB9823437D0 (en) | 1998-12-23 |
| GB2343205A true GB2343205A (en) | 2000-05-03 |
Family
ID=10841323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9823437A Withdrawn GB2343205A (en) | 1998-10-26 | 1998-10-26 | Construction of track side platforms |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0997581A1 (en) |
| GB (1) | GB2343205A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2378193A (en) * | 2001-08-03 | 2003-02-05 | Laing Rail Ltd | Railway platform construction |
| RU2733671C1 (en) * | 2020-03-31 | 2020-10-06 | Фердинанд Иренеушевич Стасюлевич | Quick-erecting platform |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1019356C2 (en) * | 2001-11-13 | 2003-05-14 | Compa Tech B V | Platform, such as in particular a platform at a railway station or the like. |
| DK2278071T3 (en) * | 2009-06-18 | 2016-03-29 | Triple S Gmbh | Modular platform edge with removable platform edge plate |
| JP6892799B2 (en) * | 2017-07-20 | 2021-06-23 | 株式会社近畿興業エンジニアリングサポート | Truck berth expansion platform and how to build it |
| JP7322354B2 (en) * | 2019-02-27 | 2023-08-08 | 株式会社竹中工務店 | Track berth structure |
| CN114319161A (en) * | 2022-01-17 | 2022-04-12 | 青岛中科坤泰装配建筑科技有限公司 | Subway station prefabricated platform plate structure and installation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9304059U1 (en) * | 1993-03-19 | 1993-09-16 | Schreck-Mieves GmbH, 50226 Frechen | platform |
| GB2300009B (en) * | 1995-10-10 | 1997-08-13 | Eugene M A Baikoff | Buoyant foundations for bad soils |
-
1998
- 1998-10-26 GB GB9823437A patent/GB2343205A/en not_active Withdrawn
-
1999
- 1999-10-20 EP EP99308254A patent/EP0997581A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2378193A (en) * | 2001-08-03 | 2003-02-05 | Laing Rail Ltd | Railway platform construction |
| RU2733671C1 (en) * | 2020-03-31 | 2020-10-06 | Фердинанд Иренеушевич Стасюлевич | Quick-erecting platform |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9823437D0 (en) | 1998-12-23 |
| EP0997581A1 (en) | 2000-05-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |