MINING
ENGECORPS serves the mining industry by providing infrastructure services, mainly tailings dams, by designing rupture studies, safety plans and emergency action plans, designing new projects or projects to upgrade existing dams. Also in this area are studies of mining waste disposal systems.
Brucutu Mining Complex
Companhia Vale do Rio Doce - VALE
Conceptual, basic and final design of the Brucutu mine tailings disposal system, consisting of northern containment dams 1 and 2, saddle closure dams and dividing headlands, tailpipe passage tunnel and other adduction tailpipes and tailing distribution to basin and dams, pumping stations and other auxiliary structures. The objective is to meet the demand estimated in the expansion plan of the Brucutu Mining Complex of Vale, located in the Municipality of São Gonçalo do Rio Below, in the State of Minas Gerais. The projects were followed by the technical follow-up of the implementation of the First Stage of Works (ATO) expansion.
Itabiruçu – Dam and Waste Pile
Companhia Vale do Rio Doce - VALE
Final design for stabilization and rehabilitation of the Itabiruçu Waste Pipe (PDE), as well as the final stretch of the “Canga” Pile Drainage Canal, which is discharged at the Itabiruçu PDE, followed by the design of the final design for the 3rd stage of the Itajiruçu Tailings Dam. Final designs were also developed for the reconstruction of a section of the contour road of the reservoir and relocation of the stretches to be affected by the future occupation of the tailings. The project area is located in the Itabira mining complex, in Conceição Mine, Itabira Iron Ore District, State of Minas Gerais. The project solutions provided for the landscape integration of PDE, which is located on one of the slopes of the Itabiruçu tailings dam.
Dams of Forquilha IV and V
Companhia Vale do Rio Doce - VALE
Conceptual and Final Designs of the IV and V Forquilha Dams, located in Mine-Factory, owned by VALE, initiated by exhaustive alternatives studies aiming at the maximum reservoir capacity of the tailings in the drainage micro-basins, considering that the disposition of waste from 2007 is 6 million m³. The two dams have very similar characteristics with crest length and height of the order, respectively, of 950 m and 140 m and total reservoir volume of approximately 80 million m³. The surface drainage systems consist of rectangular channels along the slopes of downstream slopes and trapezoidal channels at the junction of the skirts of the dams with their respective shoulders. The operational spillways are of the flute type and those of abandonment with free threshold of the Creager type.