Milling arrangement for tunnel walls

a technology for tunnel walls and milling arrangements, applied in the direction of tunnel linings, cutting machines, stone-like material working apparatuses, etc., can solve the problems of carbon black layer and concrete starting to bum

US20070138857A1Inactive Publication Date: 2007-06-21BLASTRAC
9 Cites 13 Cited by

Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Publication Date
2007-06-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a vehicle with a milling arrangement on top. The milling arrangement includes a milling device for grinding an upper tunnel wall surface like tunnel ceilings of traffic tunnels. Such a vehicle with the milling arrangement according to the invention is suitable for treating tunnel walls such that a desired surface roughness and the removal of carbon black results. This assures that a lining which is applied to the tunnel ceiling and wall surface is sufficiently attached to said surfaces.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of European Application No. EP 05077162.5, filed Sep. 21, 2005, the contents of which are incorporated herein by reference. BACKGROUND OF THE INVENTION

[0002] The present invention relates to a milling arrangement for tunnel walls more particular tunnel ceilings. Such a device is placed on a vehicle to treat tunnel ceilings of traffic tunnels.

[0003] As a consequence of exhaust fumes produced by the traffic traveling through tunnels the tunnel walls become covered with a layer of carbon black. In case of a fire in the tunnel the carbon black layer as well as the concrete can start to bum due to very high temperatures which typically occur in case of tunnel fires. In order to improve the safety of existing tunnels it is desirable to apply a fire resistant lining to the tunnel ceiling in order to avoid the hazard of a quick spreading of the fire via the ceiling surface. To assure a sufficient attachment...

Examples

Embodiment Construction

[0025] In FIGS. 1-3 is shown a milling arrangement 1. The milling arrangement 1 comprises a support base 2. In the shown example the support base 2 comprise a support frame which is formed of longitudinal beams 3 and lateral beams 4 in this particular example each with a U-shaped cross section. The support base 2 could however also be of a different structure, e.g. out of other types of beams or even formed as a single support plate.

[0026] On each side of the base 2 on the beams 3 is placed a pair of two spaced apart tubular guiding elements 5 with a cylindrical outer shape. The tubular guiding elements 5 extend from the support base 2 upwardly and parallel to each other. As is best seen in FIG. 3 between the tubular guiding elements 5 a space 6 is present in which a guiding roll 7 is moveable.

[0027] The milling arrangement 1 comprises a milling device 10. The milling device 10 comprises a casing 11 in which the milling tool 20 that will be described in more detail below is rotata...