假设当两个接触面处于相对滑动的临界状态时，切向力与垂向力成正比。
Provided two contact bodies are in the critical state of relative sliding, the tangential force is proportional to the vertical force.
测量结果表明，在极低速状态下，仪表齿轮齿面间的摩擦系数几乎与齿面间的作用力无关，但随齿面相对滑动速度的增加而线性增加。
Results show that the frictional factor almost has nothing to do with applied forces, but increases linearly with the sliding speed between the tooth faces.
鉴于此，研究了预应力锚索地梁中合理确定锚固角的方法，提出以锚索地梁和坡面岩体间不发生相对滑动为初判条件；
Therefore, some slopes cannot be reinforced efficiently by foundation beam with prestressed cable because of the unreasonable designed anchorage-angle.
鉴于此，研究了预应力锚索地梁中合理确定锚固角的方法，提出以锚索地梁和坡面岩体间不发生相对滑动为初判条件；
Therefore, some slopes cannot be reinforced efficiently by foundation beam with prestressed cable because of the unreasonable designed anchorage-angle.
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