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Contractors World International
2012 Vol 3 No 3
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A port development under construction near Rio de Janiero, is owned by LLX Logistica SA and will allow the company to double its capacity for shipping iron ore to 100 Mt/year.

A port development under construction near Rio de Janiero, is owned by LLX Logistica SA and will allow the company to double its capacity for shipping iron ore to 100 Mt/year.Brazil

Superport making progress

A port development under construction near Rio de Janiero, is owned by LLX Logistica SA and will allow the company to double its capacity for shipping iron ore to 100 Mt/year.

The project, the Porto Sudeste, is located in Sepetiba Bay, close to Itaguai City some 80 km south west of Rio de Janeiro City.

This increased capacity will allow MMX (Mineração Metálicos SA) to increase production of its Serra Azul ore mines in Minas Gerais. The port will occupy a 52 acre area and includes a storage capacity of 2.5 MT. Water depths are to be increased to 21 m together with construction of offshore berths to handle large ocean going vessels.

The new terminal will be used primarily to export iron ore mined by MMX which is located some 100 km north of the company’s existing terminal at Campos.

Access from the iron ore mines to the port required either taking a circuitous route across the mountain or tunnelling. As the material is to be transported by conveyor belt, tunnelling was the best solution. The Porto Sudeste tunnel is an 11 m high x 20.5 m wide tunnel and is designed to house four conveyor lines making it one of the widest tunnels of its type globally.

The main contractor for the project, the ARG – Civil Port jv, appointed Brazilian tunnelling specialist J. Dantas to undertake excavation of the 1700 m tunnel using drill and blast techniques.

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Tunnel design for conveyors

A 1.7 km x 20.5 m wide x 11 m high tunnel is being excavated to provide access to the port from two storage stockpiles with a complete belt circuit for the ore. The total length of the belt circuit will be approximately 13,000 m and with a capacity of 12,000 t/h, will feature four conveyor lines – two x 1600 mm and two 1800 mm – and a 4 m wide road.

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Page updated: March 2012

 

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