THE UNDERGROUND OF CITIES

Examples from Canada and other countries are described, and attention is directed to the most important of all the features of such works, the local geology and the urgent necessity for immediate attention to this basic feature of all cities. The North Bay complex (a combat and control center for the air defense force in eastern Canada) is an underground location in competent gneiss which was explored through an extensive test-hole program before excavation started. Excavation started in 1959 and was complete in 16 months. The main complex consists of two caverns 400 feet long, 60 feet high, and 45 feet wide in which a 3-story steel frame building stands, with an effective floor area of 140,000 square feet. A water purification plant about to be constructed is described. The underground plant will include both low- and high-lift pumping station and a five million-gallon storage reservoir with a rated capacity of 50 million per day. The use of the underground in association with large center-city buildings and their use for civic services is mentioned. The British underground transportation services, and an underground hospital for asthmatics in Poland are also described. All successful underground space development depends on the certain and detailed knowledge of the local geology. A methodical collection of all subsurface information available for public use is essential for all cities. A city with such information is that of Prague in Czechoslovaki. Each quadrangle of the city is covered by 4 separate maps which show: the detailed geology; the depth of overburden over the bedrock; and the hydrogeology.

Media Info

  • Features: References;
  • Pagination: p. 125-133

Subject/Index Terms

Filing Info

  • Accession Number: 00130645
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Apr 7 1981 12:00AM