The maximum cutting stress lie of the radial distance of 0.5 double diameter nozzle, while the maximumpull stress lie in the surface edge of the rock.
岩石破坏时最大剪应力位于0.5倍喷嘴直径的径向距离处，同时在固体介质表面边缘产生最大拉应力。
2
Through the assumed moving direction of the plow chain, the maximumpull point is determined, the tensile strength of the plow chain is checked, the safe coefficient of the plow chain is obtained.
通过假定刨链的运行方向，确定刨链的最大拉力点，以校核刨链的抗拉强度，得出刨链的安全系数。
3
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