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EXPERIENCE AND INNOVATIONS IN THE PROTECTION OF THE FORMATION UNDER THE RAILWAY TRACKS OF THE DB

Adequate protection of the formation under railway tracks is extremely important for safe and economical rail traffic. In the construction of new high-speed rail routes, in which great importance must attach to an accurate track bed and to low maintenance costs, the question of the best formation protection achieves new importance. The author's compilation of the experience gained by the DB with the great variety of methods which have been used in the last 50 years should therefore be of the greatest interest today. Soil mechanics findings, according to which formation protective layers must by load-supporting, filtering, and resistant to frost, water, vibration and impact, are also taken into consideration. In discussing formation protection with layers of siliceous sand, the author considers the conditions of supply and framework agreements for the delivery of siliceous sand and other details which have to be taken into account when placing such material. Also discussed are formation protection methods with filter fleece, ballast support layers, soil improvement with lime, soil stabilization with cement or bituminous binders, sheeting between layers of siliceous sand, polystyrene sheets between layers of siliceous sand, soil improvement with chemicals, concrete slabs and thin protective layers of plastic. In conclusion, consideration is given to still open questions relating to the economy and suitability of methods which await testing.

  • Corporate Authors:

    Hestra Verlag

    Holzhofallee 33, Postfach 4244
    6100 Darmstadt 1,   Germany 
  • Authors:
    • Spang, J
  • Publication Date: 1977-4

Language

  • German

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00157707
  • Record Type: Publication
  • Source Agency: British Railways
  • Files: TRIS
  • Created Date: Aug 15 1977 12:00AM