We compare the results of the section physical model test of a sloping embankment project with the theoretical calculation results of the national standard,Jensen & Bradbury method,Pedersen method,and Martin method.The results show that the combined force values and distribution patterns of Martin method's impact and pulsation pressure formulas are in good agreement with the section physical model result,so it is recommended for calculating the horizontal wave pressure and buoyancy of the wave wall.The distribution pattern of wave force on the wave wall is that the horizontal wave pressure on the wave wall reaches its maximum value above the cover prism,and decreases both above and within the cover prism.The L-shaped wave wall structure can quickly reduce the horizontal wave pressure at the bottom,thereby reducing the buoyancy force on the entire bottom of the wave wall.The buoyancy force decreases linearly along the bottom of the wave wall,and is not zero at the root behind the wall.By comparing the results of sectional and overall 3D model tests,it is found that the wave pressure has a significant reduction on the uncovered area,but has a poor reduction on the covered area,while there is basically no reduction in buoyancy.The larger the wave direction angle,the smaller the reduction coefficient.The reduced wave shape remains basically unchanged.