针对工程岩体锚杆锚固防控研究的不足，提出基于锚杆预紧力的协同防控分析方法，开展基于锚杆预紧力的锚杆、锚固剂及围岩协同防控试验，得到锚杆预紧力变化规律并识别锚杆锚固协同防控状态，提出协同度概念并探讨协同度确定方法。结果表明，提升锚固剂与锚固孔围岩、锚杆与锚固剂的协同度，有利于彼此间的协同演化，可有效提升防控效果；给出了锚杆锚固协同状态判定方法，可通过锚杆预紧力松弛过程曲线和松弛度来综合判定锚杆锚固协同状态；增大锚杆垫板与临空面围岩的接触面有利于彼此间的协同演化；根据预紧力施加及监测情况，得出了锚杆锚固防控总协同度的确定方法，给出了锚杆锚固各部分提高协同度的策略，设计时应特别注重锚杆锚固各部分的协同，确保各部分均能发挥最优性能和处于最佳状态。研究结果为工程岩体的预应力锚杆锚固机理、监测、预测预报及防控等具有很好的指导和借鉴意义。

In view of the deficiency of the research on the prevention and control of bolt anchoring in engineering rock mass, the method of cooperative prevention and control analysis based on bolt pre-tightening force was put forward, and the cooperative prevention and control test of bolt, anchor agent and surrounding rock based on bolt pre-tightening force was carried out, the variation law of pre-tightening force of bolt was obtained and the cooperative prevention and control state of bolt anchoring was identified. The results indicate that improving the synergy between anchoring agents and the surrounding rock of anchoring holes, as well as between anchor rods and anchoring agents, is beneficial for their synergistic evolution and can effectively enhance the prevention and control effect. A method for determining the collaborative state of anchor rod anchoring is provided, which can comprehensively determine the collaborative state of anchor rod anchoring through the relaxation process curve and relaxation degree of anchor rod pre-tightening force. Increasing the contact surface between the anchor rod pad and the surrounding rock on the free face is beneficial for their synergistic evolution. Based on the application and monitoring of pre-tightening force, a method for determining the overall coordination degree of anchor rod anchoring prevention and control has been developed, and strategies for improving the coordination degree of each part of anchor rod anchoring have been proposed. During design, special attention should be paid to the coordination of each part of anchor rod anchoring to ensure that they can perform at their best and be in their optimal state. The research results have good guidance and reference significance for the anchoring mechanism, monitoring, prediction and prevention of prestressed anchor rods in engineering rock masses.