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List of products by author: Y. Calapodopulos

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    Abstract: The objective of this study is to describe the construction of Deep Shafts in the Mar mountain range in the Brazilian rainforest area surrounding Caraguatatuba. These shafts were built employing technology called Blind Shafts, recently introduced in Brazil. It involves drilling deep shafts with large diameters into sound rock. The Pilot Shaft is enlarged in a single step and is conventionally...

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