Under dynamic loads（such as blast

earthquake and train vibration）

some adverse effects are produced on the slope anchor system including anchor bar relaxations

fixture damage

grout ripping and interface debonding

which can influence the occurrence of prestress

the reinforced impact and the durability of slope anchor system.Therefore based on the dynamic loads types and analysis on characteristics of dynamic response

the reasonable structure design of inner-anchoring section within different stratum under dynamic loads is given.Safety factor of anchor bar and loads locking way are also presented in this paper.Under dynamic loads

the free section should be designed to be full grouted or added additional multistage reverse anchoring set

so that the auto-lock anchorage comes into being in order to control the prestressing loss and prevent the anchorage（or free section） from rupture or avoid unexpected calamities.By adding steel fibre（or resins fibre） into cement grouting material

the cracking

fatigue and punching resistance capability of boltgrouting body can be improved.And it is suggested that the epoxy coating steel strand cables of filled type should be adopted preferentially because of their good anti-corrosion performance.It can improve the durability of bolt-grouting body under dynamic loads.