EP0924344B1 - Rail track construction - Google Patents
Rail track construction Download PDFInfo
- Publication number
- EP0924344B1 EP0924344B1 EP19980204321 EP98204321A EP0924344B1 EP 0924344 B1 EP0924344 B1 EP 0924344B1 EP 19980204321 EP19980204321 EP 19980204321 EP 98204321 A EP98204321 A EP 98204321A EP 0924344 B1 EP0924344 B1 EP 0924344B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rails
- grooves
- fixing
- course
- laid
- 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.)
- Expired - Lifetime
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Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
-
- 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
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
- E01C9/06—Pavings adjacent tramways rails ; Pavings comprising railway tracks
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/11—Embedded tracks, using prefab elements or injecting or pouring a curable material
Definitions
- the invention relates to a method for laying rails in a pavement having a road surface for traffic, wherein the rails are laid in the pavement such that they are sunken with respect to the road surface according to the preamble of claim 1.
- European Patent Application EP-A 0 737 778 in the name of the Applicant discloses a rail track construction with which two parallel rails are laid in grooves in a concrete or steel foundation.
- a layer of sound-absorbent material such as, for example, very open asphalt concrete (VOAC) is applied between and alongside the rails. How the rails are fixed in the grooves is not shown in more detail. Fixing of the rails is problematical since, on the one hand, a high degree of fixation is desired and, on the other hand, a sound-damping effect must also be obtained and the transfer of vibration from the rails to the foundation, which for example is made of concrete, must be restricted.
- VOAC very open asphalt concrete
- EP-A 0 737 778 is not suitable for use in a road surface for traffic, such as, for example, in the case of tram rails laid in the road.
- NL patent 36958 discloses a method according to the preamble of claim 1. A rail structure comprising rails and cross members is positioned after which the area in between is filled.
- One aim of the present invention is therefore to provide a method for laying rails in a pavement with which stable positioning of the rails can take place in a simple and inexpensive manner.
- a further aim of the present invention is to provide a method for forming a rail construction which is well integrated in the paving construction of the pavement with relatively few transitions so that a level road surface is retained.
- a further aim of the present invention is to provide a rail construction wherein adequate vibration damping of the rails is obtained, wherein fixing of the position in the long term under static loads is guaranteed and wherein in the event of replacement the rails can be removed relatively easily.
- the method according to the present invention has the characterising features of claim 1.
- the layer of starting material When applying the layer of starting material the latter can be rendered plastic and applied simply with the aid of, for example, known asphalt spreading techniques.
- the voids in the starting material are then filled with a hardening reinforcing medium so that a fixing course is formed which has very high lateral dimensional stability.
- the rails are accurately fixed and sleepers, tie bars or other fixing means to join the rails to one another can be dispensed with.
- the method according to the present invention saves costs because the major part of the rail construction is formed by the road paving.
- the space between the rails and the wall of the grooves is filled with a casting material, such as a casting material based on plastics, optionally with vibration-damping fillers, or a casting material composed of asphalt.
- a casting material such as a casting material based on plastics, optionally with vibration-damping fillers, or a casting material composed of asphalt.
- the staring material used for the fixing course is very open asphalt concrete (VOAC) having a voids content of at least 20 %, preferably between 25 % and 30 %. It has been found that such a course allows good penetration of the hardening reinforcing medium and that a highly advantageous lateral dimensional stability is obtained by this means.
- the reinforcing medium comprises a cement-based slurry which has good penetration in very open asphalt concrete.
- the thickness of the fixing course is preferably between 5 cm and 15 cm and in a preferred embodiment forms the road surface for the traffic.
- a roadbase comprising asphalt granulate cement formed from recycled asphalt concrete with cement (CRAC) and/or asphalt concrete with minerals such as crushed aggregate or chippings (for example RAC) is preferably used.
- CRAC recycled asphalt concrete with cement
- a basecourse of asphalt concrete with minerals (RAC) can be used on top of this foundation and the fixing course applied on top of this.
- transverse forces of various magnitude such as, for example, transverse forces which arise when taking bends, can be absorbed by varying the thickness of the fixing course.
- the thickness of the roadbase is partly dependent on the sub-grade conditions and on the volume of traffic.
- FIG. 1 shows a diagrammatic cross-section of a tram rail construction according to the present invention.
- the figure shows a tram rail construction 1 having two rails 2, 2'. each of which has been laid in an individual groove 3.
- the groove 3 has been made in a fixing course 4 according to the present invention which has been formed from very open asphalt concrete with a hardened cement-based reinforcing medium therein.
- the fixing course 4 forms a road surface 5 for traffic, the rails 2, 2' being laid flush with the road surface 5.
- the rails 2. 2' have been fixed in the grooves 3 by means of a plastic casting material 6, which, for example, is formed from a plastic, optionally with vibration-damping fillers.
- a plastic casting material 6 which, for example, is formed from a plastic, optionally with vibration-damping fillers.
- a roadbase 8 is used below the basecourse 7, which roadbase 8 can have a composition similar to that of the basecourse 7 or can be formed from crushed used asphalt concrete to which about 4 % by wt cement has been added (CRushed Asphalt Cement or CRAC) which has been made up in accordance with generally known guidelines.
- rails can be laid in a pavement in a simple manner, without using sleepers, tie bars or other fixing means, such that a rail construction is obtained that is well integrated in the road surface with a minimum of transitions and minimum unevenness.
- the rails 2, 2' can be anchored in a stable manner without the use of sleepers or other tie elements between the rails.
Description
- The invention relates to a method for laying rails in a pavement having a road surface for traffic, wherein the rails are laid in the pavement such that they are sunken with respect to the road surface according to the preamble of claim 1.
- European Patent Application EP-A 0 737 778 in the name of the Applicant discloses a rail track construction with which two parallel rails are laid in grooves in a concrete or steel foundation. A layer of sound-absorbent material such as, for example, very open asphalt concrete (VOAC) is applied between and alongside the rails. How the rails are fixed in the grooves is not shown in more detail. Fixing of the rails is problematical since, on the one hand, a high degree of fixation is desired and, on the other hand, a sound-damping effect must also be obtained and the transfer of vibration from the rails to the foundation, which for example is made of concrete, must be restricted. The construction disclosed in EP-A 0 737 778 is not suitable for use in a road surface for traffic, such as, for example, in the case of tram rails laid in the road. NL patent 36958 discloses a method according to the preamble of claim 1. A rail structure comprising rails and cross members is positioned after which the area in between is filled.
- One aim of the present invention is therefore to provide a method for laying rails in a pavement with which stable positioning of the rails can take place in a simple and inexpensive manner. A further aim of the present invention is to provide a method for forming a rail construction which is well integrated in the paving construction of the pavement with relatively few transitions so that a level road surface is retained. A further aim of the present invention is to provide a rail construction wherein adequate vibration damping of the rails is obtained, wherein fixing of the position in the long term under static loads is guaranteed and wherein in the event of replacement the rails can be removed relatively easily. To this end the method according to the present invention has the characterising features of claim 1.
- When applying the layer of starting material the latter can be rendered plastic and applied simply with the aid of, for example, known asphalt spreading techniques. The voids in the starting material are then filled with a hardening reinforcing medium so that a fixing course is formed which has very high lateral dimensional stability. As a result the rails are accurately fixed and sleepers, tie bars or other fixing means to join the rails to one another can be dispensed with. Furthermore the method according to the present invention saves costs because the major part of the rail construction is formed by the road paving.
- It is possible first to lay the rails in the starting material, for example by cutting grooves in the latter when it is applied or by making said grooves subsequently by sawing or milling and then applying the reinforcing medium. However, it is also possible first to form the fixing course by applying a reinforcing medium and then to lay the rails in preformed and hardened grooves.
- Preferably the space between the rails and the wall of the grooves is filled with a casting material, such as a casting material based on plastics, optionally with vibration-damping fillers, or a casting material composed of asphalt.
- Preferably, the staring material used for the fixing course is very open asphalt concrete (VOAC) having a voids content of at least 20 %, preferably between 25 % and 30 %. It has been found that such a course allows good penetration of the hardening reinforcing medium and that a highly advantageous lateral dimensional stability is obtained by this means. Preferably, the reinforcing medium comprises a cement-based slurry which has good penetration in very open asphalt concrete.
- The thickness of the fixing course is preferably between 5 cm and 15 cm and in a preferred embodiment forms the road surface for the traffic. For alignment in the vertical direction a roadbase comprising asphalt granulate cement formed from recycled asphalt concrete with cement (CRAC) and/or asphalt concrete with minerals such as crushed aggregate or chippings (for example RAC) is preferably used. A basecourse of asphalt concrete with minerals (RAC) can be used on top of this foundation and the fixing course applied on top of this. With a construction of this type some flexibility in the vertical direction is retained, as a result of which cracking in the event of slight settlement is counteracted.
- With the method according to the present invention transverse forces of various magnitude, such as, for example, transverse forces which arise when taking bends, can be absorbed by varying the thickness of the fixing course. The thickness of the roadbase is partly dependent on the sub-grade conditions and on the volume of traffic.
- The invention will be explained in more detail with reference to the single figure, which shows a diagrammatic cross-section of a tram rail construction according to the present invention. The figure shows a tram rail construction 1 having two rails 2, 2'. each of which has been laid in an
individual groove 3. Thegroove 3 has been made in a fixing course 4 according to the present invention which has been formed from very open asphalt concrete with a hardened cement-based reinforcing medium therein. The fixing course 4 forms a road surface 5 for traffic, the rails 2, 2' being laid flush with the road surface 5. - The rails 2. 2' have been fixed in the
grooves 3 by means of a plastic casting material 6, which, for example, is formed from a plastic, optionally with vibration-damping fillers. Below the fixing course there is a basecourse 7 formed from bitumen with crushed aggregate or chippings of a standard composition. A roadbase 8 is used below the basecourse 7, which roadbase 8 can have a composition similar to that of the basecourse 7 or can be formed from crushed used asphalt concrete to which about 4 % by wt cement has been added (CRushed Asphalt Cement or CRAC) which has been made up in accordance with generally known guidelines. Using the method according to the present invention rails can be laid in a pavement in a simple manner, without using sleepers, tie bars or other fixing means, such that a rail construction is obtained that is well integrated in the road surface with a minimum of transitions and minimum unevenness. By using the hardening reinforcing medium according to the present invention the rails 2, 2' can be anchored in a stable manner without the use of sleepers or other tie elements between the rails.
Claims (13)
- Method for laying rails in a pavement having a road surface for traffic, wherein the rails are laid in the pavement such that they are sunken with respect to the road surface, wherein the rails are laid in a fixing course that has been formed from a porous starting material having a relatively high voids content, which voids are filled with a hardening reinforcing medium, characterised in that grooves, in which the rails can be laid, are first made in the starting material of the fixing course, after which the reinforcing medium is applied.
- Method according to Claim 1, characterised in that the fixing course is first formed and in that the grooves are made after the reinforcing medium has hardened.
- Method according to Claim 1 or 2, characterised in that after laying the rails in the grooves the space between the rails and the wall of the grooves is filled with a casting material.
- Method according to Claim 1, 2 or 3, characterised in that the reinforcing medium comprises a cement-based slurry.
- Method according to one of the preceding claims, characterised in that the fixing course comprises very open asphalt concrete (VOAC) having a voids content of at least 20%, preferably between 25% and 30%.
- Method according to one of the preceding claims, characterised in that the casting material comprises a setting plastic or asphalt.
- Method according to one of the preceding claims, characterised in that two parallel rails are laid without joining said rails to one another by sleepers.
- Method according to one of the preceding claims, characterised in that the thickness of the fixing course is between 5 cm and 15 cm.
- Method according to one of the preceding claims, characterised in that the fixing course forms the road surface.
- Method according to one of the preceding claims, characterised in that the fixing course is applied on top of a roadbase comprising recycled asphalt concrete with cement (CRAC) and/or asphalt concrete with minerals such as crushed aggregate or chippings (RAC).
- Method according to Claim 10, characterised in that paving of asphalt concrete with minerals such as crushed aggregate or chippings is applied on top of the roadbase.
- Method according to one of the preceding claims, characterised in that the grooves for laying the rails extend partially into the basecourse located beneath the fixing course.
- Method according to one of the preceding claims, characterised in that the rails (2, 2') are not joined to another by tie elements.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1007815A NL1007815C2 (en) | 1997-12-17 | 1997-12-17 | Track construction. |
NL1007815 | 1997-12-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0924344A1 EP0924344A1 (en) | 1999-06-23 |
EP0924344B1 true EP0924344B1 (en) | 2004-02-25 |
Family
ID=19766199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19980204321 Expired - Lifetime EP0924344B1 (en) | 1997-12-17 | 1998-12-17 | Rail track construction |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0924344B1 (en) |
DE (1) | DE69821881T2 (en) |
NL (1) | NL1007815C2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19946317C1 (en) | 1999-09-28 | 2001-03-01 | Sedra Asphalt Technik Biebrich | Process for producing a soundproof track |
FR2833023B1 (en) * | 2001-12-05 | 2004-05-21 | Alstom | METHOD OF CONSTRUCTING A RAIL TRACK IN WHICH A CONCRETE TRACK SLAB IS MADE AND INSERTION ELEMENTS OF THE RAIL TRACK ARE INSERTED IN THE TRACK SLAB |
FR2835003B1 (en) * | 2002-01-24 | 2004-02-27 | Alstom | METHOD OF CONSTRUCTING A RAILWAY TRACK ON A CONCRETE SHEET |
NL1026468C2 (en) | 2003-06-30 | 2005-04-28 | Heijmans Infrastructuur Bv | Railway construction. |
DE102009044841B4 (en) * | 2008-12-09 | 2012-02-23 | Polyplan Gmbh | Schienenfuge |
CN113699839A (en) * | 2021-09-06 | 2021-11-26 | 上海市城市建设设计研究总院(集团)有限公司 | Urban tramcar rail side semi-flexible transition structure and construction method thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL36958C (en) * | 1900-01-01 | |||
DE2253495C3 (en) * | 1972-10-31 | 1979-04-12 | Alfred Kunz & Co, 8000 Muenchen | Ceiling for traffic routes and the like |
DE4430967A1 (en) * | 1994-08-31 | 1996-03-07 | Xaver Riebel Bauunternehmung G | Support bed for tram tracks |
DE29611725U1 (en) * | 1996-07-05 | 1996-09-05 | Leonhardt & Sohn Kg | Plaster edge element |
-
1997
- 1997-12-17 NL NL1007815A patent/NL1007815C2/en not_active IP Right Cessation
-
1998
- 1998-12-17 EP EP19980204321 patent/EP0924344B1/en not_active Expired - Lifetime
- 1998-12-17 DE DE69821881T patent/DE69821881T2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NL1007815A1 (en) | 1999-06-21 |
DE69821881D1 (en) | 2004-04-01 |
DE69821881T2 (en) | 2004-12-16 |
NL1007815C2 (en) | 1999-06-24 |
EP0924344A1 (en) | 1999-06-23 |
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