The methods of calculating seismic influence coefficient and dynamic magnification factor of seismic design code in different industries are compared

and the suitability of current nuclear safety guides to high slope anti-seismic stability assessment of nuclear safety grade is studied. Taking the typical anti dip layered soft rock high steep slope at a certain nuclear safety grade for example

this paper discusses the application of various methods to analyze the dynamic amplification effect

safety and seismic performance of retaining structures. Firstly

on the basis of typical two-dimensional calculation profile

the preliminary reinforcement design of slope is conducted by quasi-static method. Then

based on large-scale shaking table tests and numerical calculation

the dynamic amplification effect of the soft rock slope and the dynamic response characteristics of the retaining structure under different seismic loads are studied. Finally

the safety of the slope is evaluated by field engineering monitoring. The results show that under strong earthquake

it is feasible to design the nuclear safety slope according to the seismic parameters in other industry codes. The whole slope is stable and the seismic performance of the retaining structure is good by shaking table and numerical analysis. The research ideas and methods are reasonable and feasible

and a lot of engineering investment will be saved. The present research enriches the theory of high steep slope stability with nuclear safety grade and can provide technical support for seismic safety evaluation and engineering design of nuclear safety grade slopes.