Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Limits of the geological predictions constructing the samanalawewa pressure tunnel, Sri Lanka
Abstract The Samanalawewa Hydroelectric Power Plant in Sri Lanka consists out of a 110 m high dam, 5.5 km near surface pressure tunnel and a powerhouse equipped with two Francis turbines of 62 MW each. To explore the geological conditions for the pressure tunnel about 6500 m were drilled with a total of 97 boreholes. Additionally surface investigations and a geophysical program were realized in order to optimize the drilling campaign. Notwithstanding this very extensive field investigations important modifications in the design of the tunnel had to be made during construction. Consequently, the contractor claimed additional not foreseeable construction works. At least the question of the possible precision of geological prediction within reasonable economical limits had to be answered.
Limits of the geological predictions constructing the samanalawewa pressure tunnel, Sri Lanka
Abstract The Samanalawewa Hydroelectric Power Plant in Sri Lanka consists out of a 110 m high dam, 5.5 km near surface pressure tunnel and a powerhouse equipped with two Francis turbines of 62 MW each. To explore the geological conditions for the pressure tunnel about 6500 m were drilled with a total of 97 boreholes. Additionally surface investigations and a geophysical program were realized in order to optimize the drilling campaign. Notwithstanding this very extensive field investigations important modifications in the design of the tunnel had to be made during construction. Consequently, the contractor claimed additional not foreseeable construction works. At least the question of the possible precision of geological prediction within reasonable economical limits had to be answered.
Limits of the geological predictions constructing the samanalawewa pressure tunnel, Sri Lanka
Nagel, Karl-Heinz (Autor:in)
1992
Aufsatz (Zeitschrift)
Englisch
Limits of the geological predictions constructing the samanalawewa pressure tunnel, Sri Lanka
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