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Keywords: important feature
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Proceedings Papers

Paper presented at the ISRM International Symposium, September 12–16, 1988
Paper Number: ISRM-IS-1988-035
... two reversible-type 79MW peak load units are installed in two twin shafts, are the most important features of this scheme. The 60 m high shafts with a 17 m diameter cross section each are excavated in the left bank of the river, very close to the granitic slope of the Tamega valley, about 150 m away...

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