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Advances in raise boring
22 June, 2012
Advances in the design and construction of reaming heads and rock tools has seen the technique of raise boring become increasingly effective to the point where it can now be used in very hard rock, in confined urban areas, and in deep underground locations, writes Goran Strand of Sandvik Mining and Construction
Playing a jumbo role at La Confluencia hydro project
03 February, 2009
Six Sandvik DT series tunnelling jumbos will be used by main contractor the Hochtief-Tecsa Joint Venture for excavating the tunnels on La Confluencia, a run-of-river hydroelectric project being built in the Chilean Andes
Final breakthrough
18 July, 2006
Indian contractor Gammon has passed a significant landmark on the Teesta V hydroelectric project in India with the final breakthrough on the six-face headrace tunnel
Drill and blast operations
21 October, 2005
Tamrock Pantera and CHA55O drill rigs and Sandvik rock drilling tools play a key role in drilling operations at the Na Hang dam, one of Vietnam’s largest hydroelectric projects
The shape of the tunnel
03 June, 2003
New tunnelling equipment means more power from a Canadian hydro project
Twin role for drilling rigs
04 October, 2002
Drilling rigs are aiding earthmoving operations involving 600,000m3 of rock per month at the twin Borcka and Muratli dams in Turkey