中文摘要：

提出了一种简化的锚杆岩土体相互作用的动力学模型，结合该模型，借助ANSYS有限元程序建立数值模型。为了研究了锚杆参数（弹模、横截面积、长度、间距）对锚固边坡的影响，通过变化各个参数，分析其对锚固边坡的抗震性能（位移、加速度和应力）的影响。分析结果表明：锚杆参数对锚固边坡抗震性能影响强弱不一，甚至还会起反作用。增大锚杆横截面积可以有效提高边坡抗震稳定性（位移最大降幅可达33％，加速度最大降幅37．4％，应力最大降幅42．37％）；减小锚杆间距也可以改善边坡抗震性能（位移最大降幅可达7．53％，加速度最大降幅9．85％，应力最大降幅38．3％）；而提高锚杆弹模并不能有效降低边坡变形，相反还会增大边坡水平地震加速度（最大增幅可达13．8％）；增大锚杆长度对边坡抗震性能提高不大。因此，应通过调整合适的锚杆参数，来改善边坡抗震稳定性，这些结论对于锚固边坡的抗震设计有一定的借鉴作用。

英文摘要：

A simplified dynamic model of interaction between anchor and rock was proposed, and according to the anchor and soil dynamic model, numerical models were established by ANSYS program. And in order to analyze the effects of changes of anchor parameters （such as elasticity modulus, cross section, length and space ） on anchor slope, by changing anchor parameters, it was studied the effects of anchor parameters on anchor slope seismic per- formances （such as displacement, acceleration and stress）. And analysis results indicate that anchor parameters have different effects on seismic performance of anchor slope, some times they may play bad role in seismic stabili- ty. Increasing cross section of anchor is able to improve seismic stability effectively （maximum decreasing ampli- tude of displacement is up to 33%, maximum decreasing amplitude of acceleration is up to 37.4%, and maximum decreasing amplitude of stress is up to 42.37% ） ; and reducing anchors space is also beneficial for improving seis- mic performance of anchor slope to some extent （maximum decreasing amplitude of displacement is up to 7.53% , and maximum decreasing amplitude of acceleration is up to 9.85 %, and maximum decreasing amplitude of stress is up to 38.3% ） ; increasing elasticity modulus cannot constrain slope deformation effectively,instead increases hori- zontal seismic acceleration of slope （ maximum increasing amplitude is up to 13.8% ） ; while anchor length have lit- tle effect on improve seismic performance of anchor slope. Consequently, suitable anchor parameters should be mod- ified so as to improve seismic performances of anchor slope. And these conclusions may provide some reference for seismic design of anchor slope.