为保证碳筋不出现滑移，软金属管和碳筋间的摩阻角应大于锚环锥角和夹片与锚环之间的摩阻角之和；

To avoid slip of CFRP bars, the friction angle between soft metal pipe and CFRP bars should be larger than the sum of barrel's conical angle and friction angle between wedge and barrel.

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结果表明：随着锥角和摩擦系数在一定范围内增大，锚环的应力会逐渐减小；

The results show that with the increase of the cone angles and the coefficients of friction in the certain range, the stress of the anchor ring can gradually decrease.

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这样，开槽的锚杆就可以在成锥模内成锥。

In this way, the grooving anchor rods can taper in the tapering die set.

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