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English to Spanish translations [PRO] Mining & Minerals / Gems / Dams
English term or phrase:grout curtain
3.1 XXX was in the process of preparing the detailed design report on the investigations on the Presa Canyon and the slide area. The information that was available at the time of the visit indicates that at the narrow gorge of the proposed canton dam, the rock conditions are favourable and comprise essentially of quartzitic sandstone with a permeability of 10-5 cm/s or lower. The fluvio-alluvial deposit in the valley floor has, as expected, a high permeability of 10-3 cm/s, and would require a grout curtain underneath the dam. I look forward to examining the detailed Geoservice report on these investigations, including the geophysical data interpretation.