中文摘要：

基于一些假设，抛锚系统的动态管理方程被建立。自然频率和相应颤动模式的计算公式被推出。而且，理论方法的可行性被使用与另外的方法相结合的一个特定的例子验证。低顺序的自然频率对应于颤动的第一个模式，这被发现，并且高顺序的自然频率对应于颤动的第二个模式，当仅仅当抛锚系统的物理、机械的参数满足某些条件时，第三个模式发生时。与增加自然频率的顺序，对抛锚系统的动态机械反应的影响逐渐地减少。另外，一个精明的方法，能在不同构造地点发现抛锚工程的危险区域并且避免可以引起回声的锚的无理的设计，被建议相遇地震预防要求。这个方法被验证由被用于一个实际工程可行、有效。抛锚系统的基本动态特征的学习能为地震设计和锚设计的快评估策划的锚提供理论指导。

英文摘要：

Based on some assumptions, the dynamic governing equation of anchorage system is established. The calculation formula of natural frequency and the corresponding vibration mode are deduced. Besides, the feasibility of the theoretical method is verified by using a specific example combined with other methods. It is found that the low-order natural frequency corresponds to the first mode of vibration, and the high-order natural frequency corresponds to the second mode of vibration, while the third mode happens only when the physical and mechanical parameters of anchorage system meet certain conditions. With the increasing of the order of natural frequency, the influence on the dynamic mechanical response of anchorage system decreases gradually. Additionally, a calculating method, which can find the dangerous area of anchorage engineering in different construction sites and avoid the unreasonable design of anchor that may cause resonance, is proposed to meet the seismic precautionary requirements. This method is verified to be feasible and effective by being applied to an actual project. The study of basic dynamic features of anchorage system can provide a theoretical guidance for anchor seismic design and fast evaluation of anchor design scheme.