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16:31 Apr 4, 2007
English to Spanish translations [PRO] Mining & Minerals / Gems
English term or phrase:two layer sub-drainages
A rock drain system will be installed beneath the Tailing Storage Facility (TSF) to convey water from valleys above the TSF and surface drainage from on top of the tailing under the deposit to a point downstream of the dam.
For the design of the rock drain, the selected flow is 7 m3/s from each of the ***two layer
sub-drainages*** (north and west), which have catchment areas of 11 and 13 km2. This meets three levels of criteria: