孔道成孔工艺对锚固力损失的分析与控制

预应力锚索锚固作用机理复杂，影响预应力锚固效果的因素众多，锚固力损失与材料性质、被锚固介质力学特性、锚夹具质量、施工工艺等因素有关。锚索施工工艺对锚索锚固力损失的影响主要体现在孔道成孔工艺，通过孔道成孔工艺研究，推导出了孔道摩擦损失理论计算公式，该公式更加符合工程实际，具有较大的实用价值。同时对孔道成孔引起的锚固力损失提出了相应的工程控制措施。

Analysis and Control of Anchor Force Loss in Hole Forming Process

The anchoring mechanism of prestressed anchor cables is complex, and there are many factors that affect the effectiveness of prestressed anchoring. The loss of anchoring force is related to factors such as material properties, mechanical properties of the anchored medium, quality of anchor fixtures, and construction technology. The impact of anchor cable construction technology on the loss of anchor cable anchoring force is mainly reflected in the hole forming process of the channel. Through the research on the hole forming process of the channel, a theoretical calculation formula for the friction loss of the channel has been derived, which is more in line with engineering practice and has great practical value. At the same time, corresponding engineering control measures have been proposed for the loss of anchoring force caused by hole formation in the channel