Through model experiments, the characteristics of stress and strength of the steel fiber reinforced high strength concreteshaftlining are studied.
通过模型试验,对这种井壁结构的力学特性和破坏特征进行了深入研究。
2
Due to its convenience and economical efficiency, the high-strength concreteshaftlining has been widely used in deep shaft sinking by freezing method.
深冻结井高强混凝土井壁作为一种施工方便、经济的井壁结构被广泛得到应用。
3
They worked with hand trowels, a plywood form for lining the shaft with concrete, inch by inch, and a sturdy hand-built crank for lowering a man to the bottom and sending up buckets of sand.