Terraplenes y balasto en Alta Velocidad Ferroviaria. Segunda parte: Los trazados de Alta Velocidad en otros paises

Embankments and ballast in high speed rail. Second part: high speed lines in other countries

El autor resume la evolucion de los trazados de Alta Velocidad en Japon, Alemania, Francia y otros paises, mostrando como los dos primeros decidieron ya hace decadas que para la Alta Velocidad no es valida la via en balasto, y como la via en placa ha llevado a su vez a la practica eliminacion de los terraplenes altos reduciendo su altura a 9 m y su asiento a 30 mm, bajando rasantes y alargando tuneles. En Francia, que sigue con via en balasto, hubo que cambiar todo el balasto a los 14 anos de puesta en servicio del Paris-Lyon con un enorme coste, al igual que en el primer Shinkansen japones Tokio-Osaka. Estos hechos, el enorme coste del mantenimiento del balasto, el peligro de su vuelo y el golpeo a los trenes y la imposiblidad de la utilizacion de la via por los trenes de mercancias nocturnos debido al constante mantenimiento, hacen que el autor crea obligada la via en placa para Alta Velocidad en Espana. La amortizacion de su mayor coste le parece ser mucho mas cercana a los 8.8 anos que dice Japon que a los 60 anos que dicen algunos responsables espanoles. (A). English abstract: The author summarises the development of high speed lines in Japan, Germany, France and other countries. Reference is made to the decision taken several decades ago by the first two countries not to employ ballasted track on high speed lines and how slab track has practically led to the elimination of high embankments and reduced heights to 9 metres and bases to 30 mm, reducing levels and lengthening tunnels. In France, where lines have continued to be ballasted, it was necessary to change all the ballast on the Paris-Lyon line after 14 years of service and at enormous cost and this also occurred on the first Japanese Shinkansen between Tokyo and Osaka. These factors together with the vast cost of maintaining the ballast and the fact that night freight trains cannot employ the track on account of this maintenance, leads the author to the conclusion that the total cost of slab track and its maintenance balances out in relation to ballasted track at lower than the 9 years indicated by the Japanese, and as opposed to the 60 years considered by certain Spanish authorities. (A).

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00348619
• Authors:
  • MELIS MAYNAR, M
• Publication Date: 2006-7

Language

• Spanish

Media Info

• Pagination: 7-26
• Serial:
  • Revista de Obras Publicas
  • Issue Number: 3.468
  • Publisher: Colegio de Ingenieros de Caminos
  • ISSN: 0034-8619

Subject/Index Terms

• TRT Terms: Coarse aggregates; Construction; Costs; Embankments; Ground settlement; Height; High speed ground transportation; Layout; Railroad tracks; Railroad trains; Slabs; Speed; Tunnels
• ITRD Terms: 1163: Alta velocidad; 6489: Altura; 5792: Asiento (terreno); 4559: Balasto; 3655: Construccion; 224: Coste; 3491: Placa; 2801: Terraplen; 2885: Trazado geometrico; 1268: Tren (ferrocarril); 3374: Tunel; 1062: Via de ferrocarril
• Subject Areas: Bridges and other structures; Construction; Finance; Planning and Forecasting; Railroads; Vehicles and Equipment; I21: Planning of Transport Infrastructure; I50: Construction and Supervision of Construction;

Filing Info

• Accession Number: 01084170
• Record Type: Publication
• Source Agency: CENTRO DE ESTUDIOS Y EXPERIMENTACION DE OBRAS PUBLICAS (CEDEX)
• Files: ITRD
• Created Date: Jan 7 2008 4:29PM