EP1512792B1 - Schutzschicht für den Bettungskörper eines Gleisfahrweges - Google Patents

Schutzschicht für den Bettungskörper eines Gleisfahrweges Download PDF

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Publication number
EP1512792B1
EP1512792B1 EP04017565A EP04017565A EP1512792B1 EP 1512792 B1 EP1512792 B1 EP 1512792B1 EP 04017565 A EP04017565 A EP 04017565A EP 04017565 A EP04017565 A EP 04017565A EP 1512792 B1 EP1512792 B1 EP 1512792B1
Authority
EP
European Patent Office
Prior art keywords
protective layer
track
bedding
earth
shaped elements
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
Application number
EP04017565A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1512792A3 (de
EP1512792A2 (de
Inventor
Ralf Hoffmeister
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.)
DB Netz AG
Original Assignee
DB Netz 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 DB Netz AG filed Critical DB Netz AG
Priority to PL04017565T priority Critical patent/PL1512792T3/pl
Publication of EP1512792A2 publication Critical patent/EP1512792A2/de
Publication of EP1512792A3 publication Critical patent/EP1512792A3/de
Application granted granted Critical
Publication of EP1512792B1 publication Critical patent/EP1512792B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • E01B19/006—Means for protecting the underground against spillage

Definitions

  • the invention relates to a track bed with ballast body, earth body and a protective layer which separates the ballast body against the upcoming earth body and has abutting plate-shaped elements with high compressive strength and low water absorbency at long-term contact with moisture.
  • PSS anti-slip layers
  • these mineral mixtures have a wasserableitende and bearing capacity-increasing effect and thus protect the ballast bed from waterlogging, frost damage and uneven settlements or uplift.
  • the strength of the gravel sand layers to be installed vary not only strongly depending on the location, but that above all large amounts of earth material dug and transported, at the same time large quantities have to be delivered to new planum sand to be installed. Since these transport processes can usually only be done in the profile of the locked work track, they are associated with great mechanical engineering effort.
  • DE 31 47 346 It is known to apply foam boards as a substitute for these PSS composed of mineral mixtures on the ballastless planum and thus to achieve a comparable effect as in the "classic" PSS. However, it has been found that no sufficiently joint-free laying of rigid foam panels could be achieved and thus the water-draining effect required by such a protective layer was not achievable. To achieve a better water seal suggests DE 31 47 346 the installation of two superimposed layers of rigid foam plates, wherein the joints of these two layers are to be arranged offset to one another in such a way. In construction site practice, however, this approach has proven to be less realistic.
  • the GB 2 243 108 A discloses a protective layer which can be used for the construction of a track bed and which comprises a rigid core insert, preferably made of plastic, and upper and lower cover layers, which are manufactured from a more flexible geotextile material and wound around the core insert. Such an arrangement is intended to form a water-impermeable boundary layer for avoiding sludge rising from the substructure into the ballast layer.
  • the invention has for its object to provide a track bed with ballast body, earth body and a protective layer which separates the ballast body against the upcoming earth body and abutting plate-shaped elements with high compressive strength and low water absorbency at long-term contact with moisture, to develop an improved transition region between a Ballast ensured with or without a protective layer.
  • the protective layer should be suitable to rehabilitate existing rehabilitation-requiring routes with a lower logistics and machine use than before.
  • the bearing behavior of the superstructure is to be improved in terms of dynamic and static loads from train traffic.
  • the protective layer should be installable in a continuous conversion process with high propulsive power. It should be striven that no capital-intensive construction machinery requiring new construction be required, but that all necessary services should as far as possible be achievable with the existing machinery.
  • the installation of this new protective layer should also be weather-independent than with the base layers of gravel-sand mixtures.
  • the thickness of the plate-shaped elements continuously decreases in the transition region between a running with the plate-shaped elements and the nonwoven layer bed body and a run without planum protective bed body over a length of at least 20 meters and the minimum thickness of an element in the final area of the transition is still at least 0.04 meters.
  • the preferred embodiment of the plate-shaped elements made of hard foam additionally offers the advantages of a very low thermal conductivity, a high modulus of elasticity, favorable fracture stress ratios and a low intrinsic weight, whereby a manual handling of the plate elements is possible.
  • a folding of the rigid foam panels ensures a sufficiently positive connection of two elements.
  • B 2 * y + SB.
  • the size y corresponds to the vertical distance between the upper edge of the protective layer and the lower edge of the track sleepers resting on the ballast body
  • the size SB indicates the distance between both heads of a track sleeper measured transversely to the track longitudinal axis.
  • the plate-shaped elements are constructed of hard foam, in particular extruded polystyrene (for example X-PS-G).
  • the nonwoven layer is made of polypropylene and has a weight per unit area of at least 400 g / m 2 . It is also advantageous if the nonwoven layer is designed with a minimum load of 3 mm for a given load of 2 kN. Through these material properties exercises the fleece a capillary breaking effect. This makes sense, so that both the by the bumps between the plate-shaped elements penetrating leachate and the water rising through the pore water pressure rising water is reliably guided by the fleece in the edge drainage and water penetration of the protective layer is prevented.
  • FIG. 1 Construction of the track bed
  • the protective layer is created with the help of a commercially available ballast cleaning machine, which, compared with the planum improvement machines required for gravel-sand mixtures, causes a significantly lower capital expenditure.
  • the ballast cleaning machine is merely supplemented by a nonwoven unwinding device and a compaction plank to produce a level and sufficiently densified ground plane.
  • ballast bed cleaning As part of a ballast bed cleaning og Bettungstivsmaschine clears the track ballast below the track grid by means of a Schrapers or chain bar, cleans the old ballast, sifts to small gravel components and reintegrates the thus cleaned track ballast below again under the track grid.
  • the track grid is only raised in this process, but otherwise remains in its position.
  • the created in this work process of ballast cleaning machine ballast-free space can now be used for the introduction of fleece and plate elements. Within this ballast-free working space, the compaction pile runs ahead in the working direction and produces the required flatness, load capacity and density of the earth.
  • the fleece is rolled out to the Erdplanum, with an overlap of both roller conveyors of at least 30 cm takes place in a possible roll change.
  • the manual insertion of the plate elements forms the last step within the ballast-free working space before the processed ballast is fed back.
  • you can of course realize a gravity-assisted mechanical feed of the plate elements for example in analogy to the supply of track sleepers in the known track-laying machines.
  • the protective layer according to the invention tolerates a deviation from the desirable joint-free abutment of the plate elements, so that rectangular plate elements can continue to be used for this purpose. This has an advantageous effect on warehouse logistics.
  • the usual work for ballast cleaning measures in terms of lifting and compression stoppers and track stabilization done.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)
  • Laminated Bodies (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Magnetic Heads (AREA)
  • Bipolar Transistors (AREA)
EP04017565A 2003-09-03 2004-07-24 Schutzschicht für den Bettungskörper eines Gleisfahrweges Expired - Lifetime EP1512792B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04017565T PL1512792T3 (pl) 2003-09-03 2004-07-24 Warstwa ochronna dla podtorza trasy torowej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20313800U DE20313800U1 (de) 2003-09-03 2003-09-03 Schutzschicht für den Bettungskörper eines Gleisfahrweges
DE20313800U 2003-09-03

Publications (3)

Publication Number Publication Date
EP1512792A2 EP1512792A2 (de) 2005-03-09
EP1512792A3 EP1512792A3 (de) 2005-05-11
EP1512792B1 true EP1512792B1 (de) 2010-01-20

Family

ID=29558155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04017565A Expired - Lifetime EP1512792B1 (de) 2003-09-03 2004-07-24 Schutzschicht für den Bettungskörper eines Gleisfahrweges

Country Status (4)

Country Link
EP (1) EP1512792B1 (pl)
AT (1) ATE455905T1 (pl)
DE (3) DE20313800U1 (pl)
PL (1) PL1512792T3 (pl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101979766B (zh) * 2010-10-21 2012-07-11 中铁第四勘察设计院集团有限公司 高速铁路红黏土路堑基床结构
DE102012105983A1 (de) * 2012-07-04 2014-01-09 Hering Bau Gmbh & Co. Kg Akustische Abschirmeinheit und deren Aufbau

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2243108A (en) * 1990-02-14 1991-10-23 Ian Thomas Smith A component for use in railway track construction

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB339520A (en) * 1929-12-30 1930-12-11 Trinidad Deutsche Oel Und Asph Method of constructing railway embankments
US3587964A (en) * 1969-04-18 1971-06-28 Meadows W R Inc Protective course for bridge deck
AT370151B (de) * 1981-03-04 1983-03-10 Plasser Bahnbaumasch Franz Schotterbett-reinigungsmaschine und hartschaumplatten-verlegung
DE3524719A1 (de) * 1985-07-11 1987-01-15 Phoenix Ag Schutzschicht fuer elastische gleisbettmatte

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2243108A (en) * 1990-02-14 1991-10-23 Ian Thomas Smith A component for use in railway track construction

Also Published As

Publication number Publication date
EP1512792A3 (de) 2005-05-11
DE20313800U1 (de) 2003-11-13
PL1512792T3 (pl) 2010-06-30
EP1512792A2 (de) 2005-03-09
ATE455905T1 (de) 2010-02-15
DE202004005761U1 (de) 2004-08-19
DE502004010662D1 (de) 2010-03-11

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