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首页> 外文期刊>CIM Magazine >The evolution of shaft sinking systems in the western world and the improvement in sinking rates part--6 Shaft sinking from 1970 to 2007: mechanical excavation
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The evolution of shaft sinking systems in the western world and the improvement in sinking rates part--6 Shaft sinking from 1970 to 2007: mechanical excavation

机译:西方世界竖井下沉系统的发展和下沉率的提高(-6)1970年至2007年的下沉:机械开挖

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摘要

During the 1970 to 2007 time period, there were a number of changes to traditional shaft sinking systems, both in Canada and in other countries around the world. These include: the use of shaft jumbos for drilling; the use of electronic detonators for blasting; the use of hydraulic drills rather than pneumatic drills; the use of slurry explosives instead of nitroglycerine-based explosives; the drilling and blasting of long rounds utilizing drill jumbos suspended from the work stage; equipping the shaft simultaneously with excavation; and the development of mechanical shaft excavation systems. It can be noted that during this period no improvements were made to the mucking, hoisting or concreting segments of the sinking system.
机译:在1970年至2007年期间,加拿大和世界其他国家的传统竖井沉没系统发生了许多变化。这些措施包括:使用竖井大型钻床;使用电子雷管进行爆破;使用液压钻而不是气动钻;使用泥浆炸药代替硝化甘油基炸药;使用悬挂在工作台上的大型钻子进行长炮弹的钻孔和爆破;在开挖的同时装备井筒;以及机械竖井开挖系统的发展。可以注意到,在此期间,沉没系统的泥土部分,提升部分或混凝土部分没有得到改善。

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