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Keywords: underground feature
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Proceedings Papers

Paper presented at the ISRM International Symposium, May 26–28, 1982
Paper Number: ISRM-IS-1982-054
... SUMMARY: Design and construction aspects of the permanent underground features for a large hydroelectric pumped storage project are presented. All principal underground features are constructed in sedimentary rock formations consisting of thinly interbedded sandstone, siltstone, claystone...

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