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Trapped Chile Miners May Be Free by Weekend, Official Says

07 October 2010 01:35 (UTC +04:00)

Baku â€“ APA. The first of Chileâ€™s 33 trapped miners may be free by Oct. 10, more than two months after a mine accident stranded the workers, an official aiding the rescue efforts said, APA reports quoting â€œBloombergâ€.
The second of three rescue shafts being drilled has reached a depth of 520 meters (1,700 feet) after a drill bit was changed last night, said Eugenio Eguiguren, international vice president of Geotec Boyles Bros., which is drilling the hole. The drill has another 102 meters to go before reaching the miners, who have been trapped since an Aug. 5 cave-in at the mine in northern Chile, he said.
Once the drilling rig breaks through 622 meters, which could happen as soon as Oct. 8, rescuers will send down a video camera to determine if the shaft is stable enough to pull out the workers without first casing the walls, Eguiguren said. Installing a casing would take three or four days, he said.
â€œThe deeper it gets, the more complicated things become,â€ Eguiguren said today in a telephone interview from the companyâ€™s Santiago office. â€œEverything is going well. I think theyâ€™ll be getting out this Sunday or Monday.â€
The miners were trapped after an access tunnel caved in at Cia. Minera San Esteban Primera SAâ€™s San Jose copper and gold mine in northern Chileâ€™s Atacama region. Companies including BHP Billiton Ltd. have joined the rescue effort and authorities have sought advice on the rescue from countries including Peru, Canada, the U.S. and Australia.
Man-Sized Hole
The minersâ€™ only contact with the outside world has been through small drill holes from which they receive food, water, medicine and games such as dominoes.
The technique of lifting workers from a man-sized hole first proved successful in 1963 after David Fellin and Henry Throne were pulled out of the Sheppton coal mine in Pennsylvania after being trapped for 14 days. A similar rescue effort at a coal mine in Crandall Canyon, Utah, ended in failure after six miners and three rescuers were killed.
â€œWe have to get through this complicated zone,â€ Andre Sougarret, the chief engineer in charge of rescue operations, said today at a press conference at the mine site. â€œWe have to go meter by meter, and thatâ€™s what weâ€™re doing,â€ he said in televised remarks.
Drilling was stopped early today to allow engineers to analyze the final segment to be drilled, he said.