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立井虽占矿井总工程量的1/20,但工期却占2/5,它是建井工期拖长的主要因素。现在立井施工速度慢的主要技术原因是凿井装备落后、施工方法陈旧、建井条件恶化和技术工作上的失误。 怎样加快立井施工建设,缩短整个建井工期?根据国内外的经验提出如下几点看法。
Although the vertical shaft accounts for 1/20 of the total amount of the mine, the construction period accounts for 2/5, which is the main factor for prolonging the construction period. The main technical reasons for the slow shaft construction are now that the shaft sinking equipment is outdated, the construction method is out of date, the condition of well construction is deteriorated and the technical work is mistaken. How to speed up the construction of shaft and shorten the construction period? According to the experience at home and abroad to make the following observations.