Laying of rails directly on cement floor of subway tunnel by means of stud bolts and adhesive cement, without using ties and ballast, proved reliable after 6 mo practical operation of 400-m-long test section; construction results in considerable savings, since tunnel height is 30-35 cm lower than usual. Abstract from Verkehr u Techn v 16 n 6 1963.
Tieless railroad track in tunnel of Hamburg's underground railroad
Der schwellenlose Oberbau im Tunnel der Hamburger U-Bahn
VDI -- Zeitschrift ; 105 , n 24
1963
Article (Journal)
German
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Engineering Index Backfile | 1895
Engineering Index Backfile | 1895
Engineering Index Backfile | 1893
Engineering Index Backfile | 1931
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