土木工程中,路塹是高於現路水平面的地表土石被挖走的工程。一般用於公路、鐵路、運河,以截彎取直、降低縱坡。[1] [2]

路塹
1860年開通的穿過威爾斯坎布里安山脈花崗岩的紐頓-馬漢萊斯鐵路英語Newtown and Machynlleth Railway的塔勒西格路塹,深36米,是當時世界上最深的路塹。
Open-cut station of the New York City Subway

挖掘路塹可以用人力挖、平地機鏟運機英語Wheel tractor-scraper挖掘機鑽爆法[3]

路塹可分為山邊繞過的與穿山而過的兩種。[4]

著名路塹

參考文獻

  1. ^ Alexander Smith (1875) A new history of Aberdeenshire
  2. ^ Robert G. Lewis et al., eds., Railway Age's Comprehensive Railroad Dictionary (Omaha, Neb.: Simmons-Boardman Books, 1984), p. 48. This reference does not include a definition for the corresponding term fill.
  3. ^ Herbert L. Nichols, Jr., and David A. Day, P.E., Moving the Earth: The Workbook of Excavation, 5th ed. (New York: McGraw-Hill, 2005), pp. 8.16 et seq.
  4. ^ Nichols and Day, Moving the Earth, p. 8.16.