AT304600B - Resilient bedding especially for railroad tracks, machine base plates and the like. - Google Patents

Resilient bedding especially for railroad tracks, machine base plates and the like.

Info

Publication number
AT304600B
AT304600B AT75670A AT75670A AT304600B AT 304600 B AT304600 B AT 304600B AT 75670 A AT75670 A AT 75670A AT 75670 A AT75670 A AT 75670A AT 304600 B AT304600 B AT 304600B
Authority
AT
Austria
Prior art keywords
base plates
machine base
resilient
railroad tracks
bedding
Prior art date
Application number
AT75670A
Other languages
German (de)
Original Assignee
Friedrich Bruckmayer Dipl Ing
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 Friedrich Bruckmayer Dipl Ing filed Critical Friedrich Bruckmayer Dipl Ing
Priority to AT75670A priority Critical patent/AT304600B/en
Application granted granted Critical
Publication of AT304600B publication Critical patent/AT304600B/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E01B1/001Track with ballast
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00Characteristics of the track and its foundations
    • E01B2204/01Elastic layers other than rail-pads, e.g. sleeper-shoes, bituconcrete

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



   Die Erfindung betrifft eine federnde Bettung für Eisenbahngleise, Maschinengrundplatten   u. dgl.   mit einer Schüttung aus grobkörnigem Material. Hiezu sind Schüttungen aus körnigem Naturstein bekannt. 



   Bettungen dieser Art haben den Nachteil, dass die Federung und damit die Schwingungsdämmung von solchen Schüttungen aus Natursteinen, wie beispielsweise jene der Schotterbettung von Eisenbahngleisen, vergleichsweise gering ist, da sie im wesentlichen nur auf einer Wackelkontaktwirkung beruht, während das Schüttungsmaterial selbst praktisch unzusammendrückbar ist. Daraus ergeben sich wesentliche Nachteile, wie beispielsweise das Erfordernis, die Schotterbettung wegen des Abriebes von Zeit zu Zeit nachstopfen, reinigen und schliesslich ganz auswechseln zu müssen. 



   Es sind weiters federnde Bettungen aus Kunststoff oder Gummi bekannt, bei denen grosse Platten in der Breite des zu bettenden Elementes Anwendung finden. Die darüber erforderlichen druckverteilenden Betonplatten sind wegen des hohen Gewichtes nur schwierig, in Tunnelstrecken kaum einzubringen. 



   Die Erfindung hat sich zur Aufgabe gestellt eine Bettung zu schaffen, deren federnde Eigenschaften unverändert bleiben, die keine dauernde Nachbearbeitung benötigt und die es dennoch ermöglicht sie jeden Bodenverhältnissen ohne zusätzliche Bodenplatten bei der Aufbringung anzupassen. 



   Erfindungsgemäss wird diese Aufgabe bei federnden Bettungen der eingangs erwähnten Art dadurch gelöst, dass dieses Schüttungsmaterial zumindest teilweise aus für federnde Bettungen an sich bekanntem, infolge Form-und bzw. oder Stoffederung in sich elastischem Material wie Gummi oder Plastik besteht. 



   Hiedurch ergibt sich der Vorteil, dass das Schüttungsmaterial in Weiterbildung der Erfindung hinsichtlich Formfederung oder (und) Stoffederung so gewählt ist, dass es bereits im Bereich der normalen zulässigen Belastungen degressiv ist. Besonders vorteilhaft ist es, wenn in Weiterbildung der Erfindung das Schüttungsmaterial so gewählt wird, dass es aus einem unnachgiebigen Kern mit einem nachgiebigen Mantel besteht, wodurch eine vielfältige Variationsmöglichkeit in bezug auf sein elastisches Verhalten besteht. 



   Die erfindungsgemässe Schüttung kann auch aus Altgummi hergestellt werden, wobei die Zerkleinerung zu Gummischotter so durchgeführt werden kann, dass die vorbeschriebene degressive Federung oder eine andere elastische Eigenschaft nach Wunsch stark ausgeprägt ist. 



   Es ist erfindungsgemäss, das Schüttungsmaterial in Schichten verschiedener Nachgiebigkeit einzubringen, beispielsweise auch in Abwechslung mit Naturschotterschichten zu verarbeiten. Diese Anpassung an wechselnde elastische Forderungen ist wegen der Einfachheit der Herstellung wirtschaftlich von erheblichem Vorteil. Das gleiche gilt, wenn die verlangte Anpassung durch Mischung von elastischem Schüttungsmaterial mit unelastischem Schüttungsmaterial   (z. B.   Natursteinschotter) erfolgt. Das Schüttungsmaterial kann in Weiterbildung der Erfindung ferner noch andern Eigenschaften angepasst werden,   z. B.   einer erhöhten Schallschluckung wodurch eine Lärmminderung entsteht. 



   PATENTANSPRÜCHE : 
1. Federnde Bettung für Eisenbahngleise, Maschinengrundplatten   u. dgl.   mit einer Schüttung aus 
 EMI1.1 
 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



   The invention relates to a resilient bedding for railroad tracks, machine base plates and. Like. With a bed of coarse-grained material. Fills made of granular natural stone are known for this.



   Bedding of this type has the disadvantage that the suspension and thus the vibration damping of such embankments made of natural stone, such as that of the ballast bedding of railroad tracks, is comparatively low, since it is essentially based only on a loose contact effect, while the bedding material itself is practically incompressible. This results in significant disadvantages, such as the need to replenish the ballast bed from time to time because of abrasion, to clean it and finally to have to replace it completely.



   There are also known resilient bedding made of plastic or rubber, in which large plates in the width of the element to be bedded are used. The necessary pressure-distributing concrete slabs are difficult because of their high weight and can hardly be installed in tunnel sections.



   The invention has set itself the task of creating a bedding whose resilient properties remain unchanged, which does not require permanent reworking and which nevertheless enables it to be adapted to any soil conditions without additional base plates during application.



   According to the invention, this object is achieved with resilient bedding of the type mentioned at the outset in that this bedding material consists at least partially of a material known per se for resilient bedding and elastic material such as rubber or plastic due to shape and / or fabric suspension.



   This results in the advantage that, in a further development of the invention, with regard to form springiness or (and) material springing, the fill material is selected in such a way that it is degressive even in the range of the normal permissible loads. It is particularly advantageous if, in a further development of the invention, the fill material is selected so that it consists of an inflexible core with a resilient casing, whereby there is a wide range of possible variations with regard to its elastic behavior.



   The fill according to the invention can also be made from scrap rubber, the crushing to rubber gravel being able to be carried out in such a way that the above-described degressive springing or another elastic property is strongly pronounced as desired.



   According to the invention, the fill material is introduced in layers of different flexibility, for example also to be processed alternately with layers of natural gravel. This adaptation to changing elastic requirements is of considerable economic advantage because of the simplicity of manufacture. The same applies if the required adjustment is made by mixing elastic fill material with non-elastic fill material (e.g. natural stone gravel). In a further development of the invention, the bulk material can also be adapted to other properties, e.g. B. an increased sound absorption resulting in a reduction in noise.



   PATENT CLAIMS:
1. Resilient bedding for railway tracks, machine base plates, etc. Like. With a pour
 EMI1.1
 

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

undhinsichtlich Formfederung oder (und) Stoffederung so gewählt ist, dass es bereits im Bereich der normalen zulässigen Belastungen degressiv ist. EMI1.2 Schüttungsmaterial in Mischung mit einem unelastischen Schüttungsmaterial aufgebracht ist, wobei die Mischung in ganzer Schichtdicke erfolgt, oder abwechselnd in elastischen und unelastischen Schichten. EMI1.3 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. and with regard to form springing or (and) material springing is chosen so that it is degressive already in the range of the normal permissible loads. EMI1.2 Fill material is applied in a mixture with an inelastic fill material, the mixture taking place in the entire layer thickness, or alternately in elastic and inelastic layers. EMI1.3 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT75670A 1970-01-28 1970-01-28 Resilient bedding especially for railroad tracks, machine base plates and the like. AT304600B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT75670A AT304600B (en) 1970-01-28 1970-01-28 Resilient bedding especially for railroad tracks, machine base plates and the like.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT75670A AT304600B (en) 1970-01-28 1970-01-28 Resilient bedding especially for railroad tracks, machine base plates and the like.

Publications (1)

Publication Number Publication Date
AT304600B true AT304600B (en) 1973-01-10

Family

ID=3498957

Family Applications (1)

Application Number Title Priority Date Filing Date
AT75670A AT304600B (en) 1970-01-28 1970-01-28 Resilient bedding especially for railroad tracks, machine base plates and the like.

Country Status (1)

Country Link
AT (1) AT304600B (en)

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Legal Events

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ELJ Ceased due to non-payment of the annual fee