On the basis of the thin plate theory, the cusp catastrophe model of water outburst at vertical shaftfloor could be set.
在薄板理论的基础上,建立了立井井筒底板突水的突变模型。
2
The minimum theoretical safe thickness of the water-resisting layer at shaftfloor was obtained according to the analysis of the catastrophe. The computed result tallied with the actual situation.
运用突变理论的分析方法,求得了井筒底板隔水层的最小理论安全厚度,这与典型案例实际情况基本相符。
3
Our damp clothes dried. We spread the picnic cloth on the floor of the mine shaft, away from the edge of darkness.