滑动

With the sliding wedge sliding down, the gravity of sliding body generates pushing effect on the soil of both sides. As a result, there is no crack observed at deep place.

滑动楔形体向下滑动的同时，滑动体自重力对两侧土体产生推挤作用，深部实际破坏面不会张开。

The formulas about the relative sliding ratio and the engagement trail of beeline-tooth conjugate inner-gearing pair are worked out on the basis of the gear meshing principle. Based on the formulas, the factors that may influence the relative sliding ratio of beeline-tooth conjugate inner-gearing pair are analyzed.

利用齿轮啮合原理推导了直线共轭内啮合齿轮副的啮合线方程和相对滑动系数的计算公式，研究了啮合过程中齿间相对滑动状态，综合分析了相对滑动系数的影响因素。

This paper introduces the experiment of coal rock friction sliding, analyzes the characteristics of coal rock structure, discusses the characteristics of friction sliding and stability, in the meantime, explains the rockburst mechanism with viscous sliding phenomenon in the process of friction sliding.

为此，开展了煤岩摩擦滑动实验研究，分析了煤岩体结构的特性，探讨了煤岩的摩擦滑动性状及摩擦滑动的稳定性，用摩擦滑动中的粘滑现象解释了冲击矿压的发生机理。