A transition from a large open pit into a novel“macroblock variant”block caving geometry at Chuquica

• 作 者: German Flores Alex Catalan
• 机 构: NewcrestMiningLtd.,CodelcoChile
• 出 处: 岩石力学与岩土工程学报:英文版
• 发表日期: 2019年3期
• 关键词: MACROBLOCK VARIANT Block CAVING CAVE propagation Early and late dilutions Intens

With a history of more than 100 years, Chuquicamata has become one of the largest open pits in the world. Its current depth of 1100 m, length of 4500 m and width of 3000 m, resulting in haulage distances of over 11,000 m from pit bottom to the processing