There is no need to lift the shaft, or obtain access to the shaft ends, therefore expensive and awkward to handle lifting equipment is not required.
没有必要取消骨干，或获得轴两端，因此昂贵和尴尬的处理起重设备并不是必需的。
2
This paper analyzes on the reasons and harms of derailing accident, and probes into some measures for preventing the derailing accident of inclined shaft trip lifting.