A two-dimensional finite element calculation model of subgrade-hill under the vibration of train is established

and the influence of the width

shape

aspect ratio of hill and soil properties on railway environmental vibration is studied. The result shows that the ground acceleration of railway environmental vibration is reduced

but the horizontal vibration displacement is significantly amplified

and the influence on vertical vibration displacement is not obvious. With the increase of the width and aspect ratio of the hill

the amplification effect of horizontal vibration displacement becomes notable. The larger the aspect ratio is

the more obvious the vertical and horizontal ground accelerations decrease. The influence of semicircular and trapezoidal hill on railway environmental vibration is consistent

but the horizontal acceleration at the top of the triangular hill is locally amplified

and the amplification effect of horizontal vibration displacement is more obvious than that of the trapezoidal and semicircular hills. When the soil is soft

the effect of the hill becomes significant.