An ambitious project to bore a tunnel through the Continental Divide in the Andes of northern Peru has stalled after a powerful rock-burst severely damaged the tunnel-boring machine drilling the underground passage. Los Olmos tunnel workers dig out TBM damaged by shifting rock in April. Related Links: Odebrecht Pushes forward With Next Phase of Peruvian Irrigation Project On April 29, a large rock-burst struck the $14-million, 5-meter-dia, unshielded Robbins gripper TBM, damaging a cylinder connecting one of the grippers to the machine. Two workers suffered minor injuries when the operating cabin was partially crushed around them. Officials with Odebrecht Perú
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