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Factors influencing hydraulic characteristics of small unlined tunnel cross-sections; investigations were carried out in rock tunnels constructed by Helsinki City Waterworks for conveying raw water; length of reservoir entrance tunnel is 1.8 km and its theoretical cross section is 4.5 sq m; length of raw water tunnel is 7.6 km and its theoretical cross section is 6 sq m; vertical shafts divided both of tunnels into three parts, in all of which cross-sectional measurements as well as pressure loss measurements for different discharges were carried out with measuring weirs and Siemens venturi meters. (39551)
Factors influencing hydraulic characteristics of small unlined tunnel cross-sections; investigations were carried out in rock tunnels constructed by Helsinki City Waterworks for conveying raw water; length of reservoir entrance tunnel is 1.8 km and its theoretical cross section is 4.5 sq m; length of raw water tunnel is 7.6 km and its theoretical cross section is 6 sq m; vertical shafts divided both of tunnels into three parts, in all of which cross-sectional measurements as well as pressure loss measurements for different discharges were carried out with measuring weirs and Siemens venturi meters. (39551)
Hydraulic properties of small unlined rock tunnels
ASCE J Hydraul Div
Priha, S. (author)
1969
29 pages
Article (Journal)
English
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Hydraulic Properties of Small Unlined Rock Tunnels
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