摘要:
In order to produce a slab trackway for rail vehicles with an escape route (12) for road vehicles, a prefabricated track section with rails (8) and sleepers (5) is supported and positioned on a substructure (1) by means of a supporting and directing device. Thereafter, a trackway slab (10) is produced by casting between the sleepers (5). The part of the sleepers (5) which projects out of the trackway slab (10) and the rails (8) is limited by formwork, and an escape route (12) is constructed on the trackway slab (10) by casting.
摘要:
Der Gleisoberbau für einen Schienenweg auf einem quer zu dessen Erstreckung geneigten Untergrund (12) ist versehen mit einem Schotterkörper (16) aus einzelnen Schottersteinen (18) und in dem Schotterkörper eingebetteten Schwellen (20), an denen Schienen (24) befestigbar sind, wobei der Schotterkörper (16) unterhalb der Schwellen (20) Lastabtragungsbereiche (26) aufweist, die beim Befahren der Schienen (24) über die Schwellen (20) vertikal auf den Schotterkörper (16) wirkende Lasten aufnehmen und den Untergrund (12) unterhalb des Schotterkörpers (16) übertragen. Diese Übertragung ist dadurch gekennzeichnet, dass im Wesentlichen lediglich die Hohlräume zwischen den Schottersteinen (18) innerhalb der Lastabtragungsbereiche (26) des Schotterkörpers (16) zur Lagefixierung der Schottersteine (18) in diesen Bereichen (26) mit einem Schaummaterial (28) insbesondere einem PU-Schaummaterial, ausgefüllt sind und dass zwischen dem Schotterkörper (16) und dem Untergrund (12) eine elastische Drainageschicht (14) angeordnet ist.
摘要:
Der Gleisoberbau für einen Schienenweg auf einem quer zu dessen Erstreckung geneigten Untergrund (12) ist versehen mit einem Schotterkörper (16) aus einzelnen Schottersteinen (18) und in dem Schotterkörper eingebetteten Schwellen (20), an denen Schienen (24) befestigbar sind, wobei der Schotterkörper (16) unterhalb der Schwellen (20) Lastabtragungsbereiche (26) aufweist, die beim Befahren der Schienen (24) über die Schwellen (20) vertikal auf den Schotterkörper (16) wirkende Lasten aufnehmen und den Untergrund (12) unterhalb des Schotterkörpers (16) übertragen. Diese Übertragung ist dadurch gekennzeichnet, dass im Wesentlichen lediglich die Hohlräume zwischen den Schottersteinen (18) innerhalb der Lastabtragungsbereiche (26) des Schotterkörpers (16) zur Lagefixierung der Schottersteine (18) in diesen Bereichen (26) mit einem Schaummaterial (28) insbesondere einem PU-Schaummaterial, ausgefüllt sind und dass zwischen dem Schotterkörper (16) und dem Untergrund (12) eine elastische Drainageschicht (14) angeordnet ist.
摘要:
A foundation comprising one or more layers or mattresses of tires, and a fill material provided within and/or between tires of each of the mattresses. The fill material is preferably a relatively coarse aggregate and provides a porous bed having relatively high drainage capacity. The lowermost mattress is cloth which is designed to allow the passage of water across the lowermost mattress whilst preventing the ingress of relatively finer material into the fill material and which can otherwise lead to degeneration of the foundation. At least some of the tires typically also have an upper sidewall removed therefrom.
摘要:
A rigid concrete slab (12, 14) for conveying vehicular or railroad traffic which is provided with functional longitudinal beams (32, 34) that extend or protrude downward from the underside of the slab (12, 14) and are fully and continuously supported by the underlying material. The attached beams (32, 34) enhance, strengthen and stabilize both longitudinally and transversely. Friction and suction, or interface adhesion, between the beams (32, 34) and the underlying material in which it rests causes the beams to act as anchors thereby further resisting displacement or distorion of the slab.
摘要:
The system for collecting liquid spillage at rail facilities includes a plurality of center pans (10) and side pans (14) arranged in end to end relation. The pans (10, 14) are formed of a molded lightweight plastic material, preferably high density polyethylene. Each pan (10, 14) has a molded downward extending vertical drain pipe (54, 78) which fits within an elastomeric sleeve (60) about an upper drain opening (34) in a transverse drain conduit (28) positioned between a pair of crossties beneath the pans (10, 14). Each center pan (10) has a resilient upwardly inclined side flange or lip (44) which fits in sealing relation against adjacent rail (12) at the juncture of the head (16) and the vertical web (18) of the rail (12).
摘要:
The invention concerns a railway track comprising a ballast bed (10), sleepers (12) disposed on the ballast bed, and rails (14) secured to the sleepers. The sleepers are disposed closely adjacent one another but in contactless manner such that a gap is left free. The sleepers define water-evacuation channels (134) extending transversely to the longitudinal direction of the track, in order to lead water away laterally. The gaps between the sleepers can be covered by covering elements (142) or the sleepers can overlap one another in contactless manner. In this way, the track bed is maintained substantially free from water, the positional stability of the track is increased, and hence the amount of maintenance work required, such as packing, cleaning and removal of weeds is reduced or rendered superfluous.
摘要:
A highway pavement has a multi-layer structure (20) interposed between the subbase (24) and the subgrade (22). The multi-layer structure is also suitable for use in railway pavements. The multi-layer structure (20) comprises upper and lower flexible sheet materials (14; 10) and an intermediate load-spreading layer formed of a multiplicity of load-spreading elements (12) held together in the desired preset relationship so that gaps are provided between adjacent elements (12) for passage of water. The upper flexible sheet material (14) is water permeable. The lower flexible sheet material (10) is either (a) substantially water impermeable but provided with perforations (16) or slits therethrough at locations which open into the gaps between the load-spreading elements (12), or (b) water vapour permeable but substantially impermeable to liquid water, or (c) substantially impermeable to liquid water and water vapour. In some embodiments the upper sheet material (14) may be omitted.