Track soundproofing arrangement

Details Track soundproofing arrangement Track soundproofing arrangement

E - Fixed Constructions

01

B

E01B 19/00 (2006.01)

Patent

CA 2255946

A noise control device for tracks (1) comprising sound-absorbing slabs (3) mounted at the rails (2) of the track (1), the slabs being supported on the rails (2) via elastic sections (5) and self-supportingly bridging the space between the rails (2). To improve silencing of the slabs (3) it is provided for the slabs (3) to be comprised of particles (9) of porous lightweight building material, which are combined by a binder. The slabs (3) have an embedded reinforcement (11). Advantageously, also silencing cavity resonators (14) are formed in the slabs (3). A special embodiment provides for the space between the rails (2) of a track to be bridged by slab parts (3a, 3b) arranged in pairs which are supported on each other at their rims (26, 27) facing each other.

L'invention concerne un dispositif d'insonorisation de voies ferrées (1), comportant des plaques (3) à absorption acoustique montées au niveau des rails (2) de la voie ferrée (1), qui s'appuient sur les rails par l'intermédiaire de profilés (5) élastiques et recouvrent de manière non soutenue l'espace entre les rails (2). Pour améliorer l'insonorisation des plaques (3), il est prévu que lesdites plaques (3) se composent de particules (9) en matériau poreux pour construction légère, agglomérées avec un liant. Les plaques (3) présentent une armature (11) encastrée. Avantageusement, il est également prévu dans les plaques (3), des cavités résonnantes (14) amortissant le bruit. Dans un mode particulier de réalisation, il est prévu que l'espace entre les rails (2) d'une voie soit recouvert de plaques partielles (3a, 3b) appariées, qui s'appuient mutuellement les unes sur les autres au niveau de leurs bords adjacents.

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