auxiliary shaft hoist 副井提升机
hoisting in auxiliary shaft 副井提升
Extension of new auxiliary shaft 新副井延深工程
auxiliary drive shaft 辅助驱动轴
The auxiliary shaft topsoil adopted ordinary construction and drainages in hygrometric well.
屯留煤矿副井井筒表土段采用普通法施工，利用井外降水井疏干降水。
The thesis presents the application of surface pre-grouting to construction of auxiliary shaft in Yangliu coalmine.
本文介绍了地面预注浆施工技术在杨柳煤矿副井中的应用。
Variety rules of concrete strain of outer shaft wall were carried out based on in-situ measurement during freeze sinking of Longgu Mine auxiliary shaft.
通过龙固副井冻结凿井期现场实测，获得了龙固副井外层井壁混凝土应变的变化规律。
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