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2015年12月25日7时56分,山东省临沂市平邑县玉荣石膏矿发生坍塌,29名作业人员被困井下。经全力救援,截至2016年1月29日,已有15人获救,均无生命危险,1人确认遇难,仍有13人失联。特别是2016年1月29日21时21分至22时48分,被困井下36天的4名矿工成功升井,这是世界第三次、国内首次大口径钻孔救援成功范例,比2010年智利圣何塞铜矿场事故救援提前33天,在我国矿山救援方面具有里程碑意义。
At 07:56 on December 25, 2015, the Yoryong gypsum mine in Pingyi County, Linyi City, Shandong Province collapsed. 29 operators were trapped underground. After full rescue, as of January 29, 2016, 15 people were rescued. None of them were in danger of death. One person confirmed the victims and 13 people still lost contact. Especially from 21:21 on January 29, 2016 to 22:48 on January 29, 2016, four miners trapped in the underground for 36 days successfully raised their wells. This is the third time in the world that the successful drilling of large-diameter boreholes in China was successful. The rescue of San Jose copper mine accident in Chile was 33 days ahead of schedule and a milestone in mine rescue in China.