EP0105950B1 - Mat made of elastic material - Google Patents

Mat made of elastic material Download PDF

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Publication number
EP0105950B1
EP0105950B1 EP82109420A EP82109420A EP0105950B1 EP 0105950 B1 EP0105950 B1 EP 0105950B1 EP 82109420 A EP82109420 A EP 82109420A EP 82109420 A EP82109420 A EP 82109420A EP 0105950 B1 EP0105950 B1 EP 0105950B1
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EP
European Patent Office
Prior art keywords
mat
elasticity
metal sheet
hardness
elastic material
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
Application number
EP82109420A
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German (de)
French (fr)
Other versions
EP0105950A1 (en
Inventor
Hans Dipl.-Ing. Braitsch
Hermann Ortwein
Josef Vorwald
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Clouth Gummiwerke AG
Original Assignee
Clouth Gummiwerke AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Clouth Gummiwerke AG filed Critical Clouth Gummiwerke AG
Priority to EP82109420A priority Critical patent/EP0105950B1/en
Priority to AT82109420T priority patent/ATE18583T1/en
Publication of EP0105950A1 publication Critical patent/EP0105950A1/en
Application granted granted Critical
Publication of EP0105950B1 publication Critical patent/EP0105950B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2/00—General structure of permanent way
    • E01B2/003—Arrangement of tracks on bridges or in tunnels
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E01B1/001—Track with ballast
    • 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
    • E01B2204/01—Elastic layers other than rail-pads, e.g. sleeper-shoes, bituconcrete

Definitions

  • the invention relates to a mat made of elastic material arranged under a ballast bed, the upper side of which has a protective layer.
  • Such mats are used to elastically support the ballast bedding and the tracks laid thereon against the ground and against tunnel or trough walls in order to insulate structure-borne noise, the protective layer being intended to prevent damage to the mat from the ballast lying thereon.
  • Mats of the aforementioned type consist of foamed materials or of waste rubber granulate coated with a Vottgummibahrr and glued together.
  • Mats are also already known which consist of several layers of solid rubber, the solid rubber sheets having cavities and further cavities being formed by appropriate profiling of the adjoining surfaces of the solid rubber sheets.
  • the main disadvantage of the known mats is that the sharp-edged ballast penetrates into the mat in a short time despite the protective layer present, as a result of which the mat is destroyed in such a way that it is ultimately only present in granular form. A granulated mat is no longer able to insulate structure-borne noise.
  • Another disadvantage of the known mats is that when horizontal forces occur, they shift in the direction of these forces, so that the ballast bed finally rests directly on the ground on the side facing away from the respective force and therefore no more insulation of structure-borne noise is possible at these points is.
  • Structure-borne noise bridges can also be formed in the known mats in that when the ballast is stuffed over individual ballast stones, a pressure pyramid with its tip pointing downward is built up, through which the ballast stones in question are finally pressed through the mat and onto the ground.
  • the invention has for its object to avoid the aforementioned disadvantages and to ensure that the structure-borne sound insulation to be achieved with such a mat is maintained over a long period of time.
  • the protective layer is formed by a sheet whose hardness and elasticity are dimensioned such that the ballast cannot penetrate the mat, or by a plate of appropriate hardness and elasticity.
  • the sheet prevents the ballast from penetrating into the mat and also ensures that the load is distributed over a large area, resulting in particularly high structure-borne noise insulation and an extension of the life of the mat.
  • the sheet also prevents any displacement of the mat without the mat having to be glued to the substrate.
  • the sheet is profiled in such a way that horizontally running areas alternate with obliquely running areas.
  • This design of the sheet prevents shifting of the ballast on the mat, while the pressure of the ballast on the inclined areas of the sheet creates a pressure-thrust component that acts on the mat, which has an advantageous effect on structure-borne noise insulation.
  • displacement of the ballast on the mat can be prevented by providing the sheet on its free surface with a layer of a material with a high coefficient of friction. This layer can be made of rubber, for example.
  • the mat consists of at least two superimposed plates made of elastic material, whereby cavities are formed in the interior of the mat by appropriate profiling of the opposing surfaces of the plates, the profiling being selected such that Mat is subjected to a pressure-shear stress, in view of the resulting increase in structure-borne noise insulation. Due to the profiling of the opposing surfaces of the plates, the deflection of the mat can also be largely predetermined. In addition, because of the cavities formed as a result of the profiling of the surfaces mentioned in the interior of the mat, it is not necessary to manufacture the mat from foamed material or to provide the individual plates with cavities.
  • the underside of the mat expediently also has a sheet which corresponds to the sheet provided on the top of the mat with regard to hardness and elasticity.
  • knobs, projections or the like known per se are provided on the underside of the mat. Even a mat designed in this way need not be made of a foamed material or be provided with cavities, since the knobs, projections or the like allow the mat to be sufficiently deflected.
  • Fig. Shows a mat, which consists of an upper plate 1 and a lower plate 2, wherein the top of the upper plate 1 has a sheet 3. Cavities 4 are formed between the plates 1 and 2 by appropriate profiling of the opposing surfaces.
  • the sheet 3 is provided on its surface with a layer 5 of a material with a high coefficient of friction.
  • both the top of the upper plate 1 and the underside of the lower plate 2 is provided with a sheet 3 or 6.
  • both the top of the upper plate 3 and the underside of the lower plate 6 can each be provided with a layer 5 of a material with a high coefficient of friction.
  • FIG. 4 The mat shown in FIG. 4 is provided on its upper side with a sheet 3, which is profiled in such a way that horizontally extending regions 3.1 alternate with obliquely running regions 3.2.
  • This mat is provided with knobs 7 on its underside.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Carpets (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

1. Mat made of elastic material to be arranged under a bed of broken stones of which the top side is a protection layer, characterized in that this protection layer consists of a metal sheet (3) the hardness and elasticity of which are designed in such a way that the broken stones cannot penetrate into the mat, or a plate of respective hardness and elasticity.

Description

. Die Erfindung betrifft eine unter einer Schotterbettung angeordnete Matte aus elastischem Werkstoff, deren Oberseite eine Schutzschicht aufweist. Derartige Matten dienen dazu, die Schotterbettung und die darauf verlegten Geleise gegen den Untergrund und gegen Tunnel- oder Trogwände elastisch zu lagern, um eine Dämmung des Körperschalls zu bewirken, wobei die Schutzschicht Beschädigungen der Matte durch den aufliegenden Schotter verhindern soll.. The invention relates to a mat made of elastic material arranged under a ballast bed, the upper side of which has a protective layer. Such mats are used to elastically support the ballast bedding and the tracks laid thereon against the ground and against tunnel or trough walls in order to insulate structure-borne noise, the protective layer being intended to prevent damage to the mat from the ballast lying thereon.

Die bekannten Matten der vorgenannten Art bestehen aus geschäumten Werkstoffen oder aus mit einer Vottgummibahrr ummanteltes, untereinander verklebtes Altgummigranulat. Es sind auch bereits Matten bekannt, die aus mehreren Voligummilagen bestehen, wobei die Vollgummibahnen Hohlräume aufweisen und weitere Hohlräume durch entsprechende Profilierung der aneinander angrenzenden Flächen derVollgummibahnen gebildet sind.The known mats of the aforementioned type consist of foamed materials or of waste rubber granulate coated with a Vottgummibahrr and glued together. Mats are also already known which consist of several layers of solid rubber, the solid rubber sheets having cavities and further cavities being formed by appropriate profiling of the adjoining surfaces of the solid rubber sheets.

Der wesentliche Nachteil der bekannten Matten besteht darin, dass der scharfkantige Schotter trotz der vorhandenen Schutzschicht in kurzer Zeit in die Matte eindringt, wodurch die Matte derart zerstört wird, dass sie schliesslich nur noch in granulierter Form vorhanden ist. Eine granulierte Matte vermag aber keinen Körperschall mehr zu dämmen. Ein weiterer Nachteil der bekannten Matten besteht darin, dass sie sich bei Auftreten horizontaler Kräfte in Richtung dieser Kräfte verschieben, so dass an der der jeweiligen Kraft abgewandten Seite schliesslich die Schotterbettung unmittelbar auf dem Untergrund aufliegt und daher an diesen Stellen keine Dämmung des Körperschalls mehr möglich ist. Körperschallbrücken können sich bei den bekannten Matten auch dadurch bilden, dass sich beim Stopfen des Schotters über einzelne Schottersteine eine mit ihrer Spitze nach unten weisende Druckpyramide aufbaut, durch die die betreffenden Schottersteine schliesslich durch die Matte hindurch bis auf den Untergrund gedrückt werden.The main disadvantage of the known mats is that the sharp-edged ballast penetrates into the mat in a short time despite the protective layer present, as a result of which the mat is destroyed in such a way that it is ultimately only present in granular form. A granulated mat is no longer able to insulate structure-borne noise. Another disadvantage of the known mats is that when horizontal forces occur, they shift in the direction of these forces, so that the ballast bed finally rests directly on the ground on the side facing away from the respective force and therefore no more insulation of structure-borne noise is possible at these points is. Structure-borne noise bridges can also be formed in the known mats in that when the ballast is stuffed over individual ballast stones, a pressure pyramid with its tip pointing downward is built up, through which the ballast stones in question are finally pressed through the mat and onto the ground.

Der Erfindung liegt die Aufgabe zugrunde, die vorgenannten Nachteile zu vermeiden und sicherzustellen, dass die mit einer derartigen Matte zu erzielende Körperschalldämmung über einen langen Zeitraum erhalten bleibt.The invention has for its object to avoid the aforementioned disadvantages and to ensure that the structure-borne sound insulation to be achieved with such a mat is maintained over a long period of time.

Die Lösung der gestellten Aufgabe besteht darin, dass die Schutzschicht durch ein Blech gebildet ist, dessen Härte und Elastizität so bemessen sind, dass der Schotter nicht in die Matte eindringen kann, oder durch eine Platte entsprechender Härte und Elastizität. Das Blech verhindert das Eindringen des Schotters in die Matte und gewährleistet darüber hinaus eine Verteilung der Last auf eine grosse Fläche, wodurch eine besonders hohe Körperschalldämmung und eine Verlängerung der Lebensdauer der Matte erzielt werden. Das Blech verhindert ferner jegliches Verschieben der Matte, ohne dass ein Verkleben der Matte mit dem Untergrund erforderlich ist.The solution to the problem is that the protective layer is formed by a sheet whose hardness and elasticity are dimensioned such that the ballast cannot penetrate the mat, or by a plate of appropriate hardness and elasticity. The sheet prevents the ballast from penetrating into the mat and also ensures that the load is distributed over a large area, resulting in particularly high structure-borne noise insulation and an extension of the life of the mat. The sheet also prevents any displacement of the mat without the mat having to be glued to the substrate.

In Weiterbildung der Erfindung ist das Blech so profiliert, dass sich horizontal verlaufende Bereiche mit schräg verlaufenden Bereichen abwechseln. Durch diese Ausbildung des Bleches wird einerseits ein Verschieben des Schotters auf der Matte verhindert, während andererseits durch den Druck des Schotters auf die schräg verlaufenden Bereiche des Bleches eine auf die Matte einwirkende Druck-Schub-Komponente entsteht, die sich hinsichtlich der Körperschalldämmung vorteilhaft auswirkt. Ein Verschieben des Schotters auf der Matte kann nach einem anderen Merkmal der Erfindung dadurch verhindert werden, dass das Blech auf seiner freien Oberfläche mit einer Schicht eines Werkstoffs mit hohem Reibungskoeffizienten versehen ist. Diese Schicht kann beispielsweise aus Gummi bestehen.In a further development of the invention, the sheet is profiled in such a way that horizontally running areas alternate with obliquely running areas. This design of the sheet prevents shifting of the ballast on the mat, while the pressure of the ballast on the inclined areas of the sheet creates a pressure-thrust component that acts on the mat, which has an advantageous effect on structure-borne noise insulation. According to another feature of the invention, displacement of the ballast on the mat can be prevented by providing the sheet on its free surface with a layer of a material with a high coefficient of friction. This layer can be made of rubber, for example.

Bei einer besonders vorteilhaften Ausführungsform der Erfindung besteht die Matte aus mindestens zwei übereinanderliegenden Platten aus elastischem Werkstoff, wobei durch entsprechende Profilierung der sich gegenüberliegenden Flächen der Platten in an sich bekannter Weise im Inneren der Matte Hohlräume gebildetsind, wobei die Profilierung so gewählt ist, dass die Matte im wesentlichen einer Druck-Schub-Beanspruchung ausgesetzt ist, und zwar im Hinblick auf die sich dadurch ergebende Erhöhung der Körperschalldämmung. Durch die Profilierung der sich gegenüberliegenden Flächen der Platten ist ferner die Einfederung der Matte weitgehend vorherbestimmbar. Darüber hinaus ist es wegen der infolge der Profilierung der genannten Flächen im Inneren der Matte gebildeten Hohlräume nicht erforderlich, die Matte aus geschäumtem Werkstoff herzustellen oder die einzelnen Platten mit Hohlräumen zu versehen.In a particularly advantageous embodiment of the invention, the mat consists of at least two superimposed plates made of elastic material, whereby cavities are formed in the interior of the mat by appropriate profiling of the opposing surfaces of the plates, the profiling being selected such that Mat is subjected to a pressure-shear stress, in view of the resulting increase in structure-borne noise insulation. Due to the profiling of the opposing surfaces of the plates, the deflection of the mat can also be largely predetermined. In addition, because of the cavities formed as a result of the profiling of the surfaces mentioned in the interior of the mat, it is not necessary to manufacture the mat from foamed material or to provide the individual plates with cavities.

Die Herstellung und die Lagerhaltung der die Matte bildenden Platten wird dadurch erheblich vereinfacht, dass die beiden Platten symmetrisch zueinander ausgebildet sind.The manufacture and storage of the plates forming the mat is considerably simplified in that the two plates are symmetrical to one another.

Zweckmässigerweise weist auch die Unterseite der Matte ein Blech auf, das dem auf der Oberseite der Matte vorgesehenen Blech hinsichtlich Härte und Elastizität entspricht.The underside of the mat expediently also has a sheet which corresponds to the sheet provided on the top of the mat with regard to hardness and elasticity.

Nach einem weiteren Merkmal der Erfindung sind an der Unterseite der Matte an sich bekannte Noppen, Vorsprünge o. dgl. vorgesehen. Auch eine so ausgebildete Matte braucht nicht aus einem geschäumten Werkstoff hergestellt zu werden oder mit Hohlräumen versehen zu sein, da die Noppen, Vorsprünge o. dgl. eine ausreichende Einfederung der Matte zulassen.According to a further feature of the invention, knobs, projections or the like known per se are provided on the underside of the mat. Even a mat designed in this way need not be made of a foamed material or be provided with cavities, since the knobs, projections or the like allow the mat to be sufficiently deflected.

In der Zeichnung sind mehrere Ausführungsbeispiele der erfindungsgemässen Matte jeweils im Querschnitt dargestellt.In the drawing, several embodiments of the mat according to the invention are each shown in cross section.

Fig. zeigt eine Matte, die aus einer oberen Platte 1 und einer unteren Platte 2 besteht, wobei die Oberseite der oberen Platte 1 ein Blech 3 aufweist. Zwischen den Platten 1 und 2 sind durch entsprechende Profilierung der sich gegenüberliegenden Flächen Hohlräume 4 gebildet.Fig. Shows a mat, which consists of an upper plate 1 and a lower plate 2, wherein the top of the upper plate 1 has a sheet 3. Cavities 4 are formed between the plates 1 and 2 by appropriate profiling of the opposing surfaces.

Bei der in Fig. 2 dargestellten Matte ist das Blech 3 auf seiner Oberfläche mit einer Schicht 5 eines Werkstoffes mit hohem Reibungskoeffizienten versehen.In the mat shown in Fig. 2, the sheet 3 is provided on its surface with a layer 5 of a material with a high coefficient of friction.

Die beiden Platten 1 und 2 der in Fig. 3 dargestellten Matte sind symmetrisch zueinander ausgebildet. Ferner ist sowohl die Oberseite der oberen Platte 1 als auch die Unterseite der unteren Platte 2 mit einem Blech 3 bzw. 6 versehen. Bei dieser Matte können ferner sowohl die Oberseite des oberen Bleches 3 als auch die Unterseite des unteren Bleches 6 mit je einer Schicht 5 eines Werkstoffes mit hohem Reibungskoeffizienten versehen sein.The two plates 1 and 2 of the mat shown in Fig. 3 are symmetrical to each other. Furthermore, both the top of the upper plate 1 and the underside of the lower plate 2 is provided with a sheet 3 or 6. In this mat, both the top of the upper plate 3 and the underside of the lower plate 6 can each be provided with a layer 5 of a material with a high coefficient of friction.

Die in Fig. 4 dargestellte Matte ist an ihrer Oberseite mit einem Blech 3 versehen, das so profiliert ist, dass sich horizontal verlaufende Bereiche 3.1 mit schräg verlaufenden Bereiche 3.2 abwechseln. Diese Matte ist an ihrer Unterseite mit Noppen 7 versehen.The mat shown in FIG. 4 is provided on its upper side with a sheet 3, which is profiled in such a way that horizontally extending regions 3.1 alternate with obliquely running regions 3.2. This mat is provided with knobs 7 on its underside.

Claims (7)

1. Mat made of elastic material to be arranged under a bed of broken stones of which the top side is a protection layer, characterized in that this protection layer consists of a metal sheet (3) the hardness and elasticity of which are designed in such a way that the broken stones cannot penetrate into the mat, or a plate of respective hardness and elasticity.
2. Mat according to Claim 1, characterized in that the metal sheet (3) is profiled in such a way that the horizontally arranged surfaces (3.1) alternate with diagonally arranged surfaces (3.2).
3. Mat according to Claim 1 or 2, characterized in that the metal sheet (3) on its free surface is provided with a layer (5) of material with a high coefficient of friction.
4. Mat according to Claim 1, 2 or 3, characterized in that the mat consists of at least two superimposed plates (1 and 2) of elastic material forming hollow spaces (4) within the mat, which are known as such, by a respective setting up of profiles of the opposing plate surfaces (1 and 2), whereby the setting up of profiles is arranged in such a way that the mat is mainly exposed to a compression and shearing stress.
5. Mat according to Claim 4, characterized in that the plates (1 and 2) are arranged in a symmetric fashion to each other.
6. Mat according to one of the above- mentioned claims, characterized in that the bottom side of the mat is provided with a metal sheet (6) equivalent to the metal plate (3) on the top side of the mat in respect of hardness and elasticity.
7. Mat according to one of Claims 1 to 3, characterized in that the bottom side of the mat is provided with prominent or projecting parts (7) and the like which are known as such.
EP82109420A 1982-10-12 1982-10-12 Mat made of elastic material Expired EP0105950B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP82109420A EP0105950B1 (en) 1982-10-12 1982-10-12 Mat made of elastic material
AT82109420T ATE18583T1 (en) 1982-10-12 1982-10-12 MAT MADE OF ELASTIC MATERIAL.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82109420A EP0105950B1 (en) 1982-10-12 1982-10-12 Mat made of elastic material

Publications (2)

Publication Number Publication Date
EP0105950A1 EP0105950A1 (en) 1984-04-25
EP0105950B1 true EP0105950B1 (en) 1986-03-12

Family

ID=8189272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82109420A Expired EP0105950B1 (en) 1982-10-12 1982-10-12 Mat made of elastic material

Country Status (2)

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EP (1) EP0105950B1 (en)
AT (1) ATE18583T1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1242984B (en) * 1990-08-28 1994-05-23 F I P Ind Spa ANTI-VIBRATION ELASTIC INSULATION, PARTICULARLY DESIGNED FOR RAILWAY TRACKS INSTALLED ON BALLAST
DE4219472C2 (en) * 1992-06-13 2002-02-07 Hilti Ag Device for storing rails
AT505180B1 (en) * 2007-04-06 2009-03-15 Semperit Ag Holding COATING MATERIAL FOR DIRECT CONNECTION TO A CONCRETE COMPONENT
CN110468629A (en) * 2019-08-28 2019-11-19 吴永芳 For assembled track viscoplasticity bed course manufacturing method and equipment, viscoplasticity bed course

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2324213A1 (en) * 1973-05-12 1974-11-21 Continental Gummi Werke Ag SOUND ABSORBING TRACK BED
JPS52147809A (en) * 1976-06-04 1977-12-08 Japanese National Railways<Jnr> Vibration-proof track member laminated with elasticity adjusting plate
DE2701597C2 (en) * 1977-01-15 1984-04-12 Walter 3014 Laatzen Battermann Flexible base plate for track bedding
DE7703357U1 (en) * 1977-02-05 1977-05-26 Continental Gummi-Werke Ag, 3000 Hannover BALL BED PAD FOR RAIL STRUCTURE
DE2817278C3 (en) * 1978-04-20 1980-10-30 Diether 4300 Essen Uderstaedt Sound-absorbing rail pad
DE7823955U1 (en) * 1978-08-11 1979-02-01 Continental Gummi-Werke Ag, 3000 Hannover ELASTIC BASE PLATE, IN PARTICULAR GRADED BED BASE
DE3019531A1 (en) * 1980-05-22 1981-11-26 Continental Gummi-Werke Ag, 3000 Hannover Railway track ballast underlay - has uneven downward pressed surface on elastic plates with underside lattice work

Also Published As

Publication number Publication date
ATE18583T1 (en) 1986-03-15
EP0105950A1 (en) 1984-04-25

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