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立井混合作业是近年来发展较快的一种立井施工的作业方式,工序简化,施工安全,因此越来越多的被采用。苏联从五十年代起就开始采用这种作业方式,据统计,采用混合作业方式施工的井筒的比重逐年增加,现已成为一种最基本的作业方式,采用混合作业的最高施工速度为220米/月。捷克的《巴斯科夫》和《基塔尔日契》矿曾在软岩中采用混合作业,创造284～322米/月的成井纪录。我
Vertical well mixing operation is a kind of operation method of quick shaft construction which has developed rapidly in recent years. The process is simplified and the construction is safe. Therefore, more and more are adopted. The Soviet Union has been using this method of operation since the 1950s. According to statistics, the proportion of wellbores used for construction with mixed operations has been increasing year by year. It has now become a most basic mode of operation. The maximum construction speed for mixed operations is 220 meters /month. The Czech Republic’s “Baskof” and “Kital dezh” mines have used mixed operations in soft rock to create a well record of 284 to 322 m / month. I