( 2 ) the lateral deformation is effectively limited by reinforced earth layers and the settlement becomes small . @ the lateral deformation is enlarged on soft foundations , and the settlement becomes large . @ the reinforced earth layers on soft foundations behaves extension . the response behaviors of high sand - gravel embankment are indicated as the following : ? he amplification factor of earthquake acceleration varies with reinforced earth structure . ( 2 ) the basic frequency of the original embankments in different reinforcement conditions is about 0 . 76hz . ? the amplitude of dynamic deformation appears small and the dynamic stability is safe 研究表明：加筋土体能有效地限制路堤的侧向位移发展，减小沉降变形量；软基路堤的侧向位移较大，将显著地增大路堤的沉降变形；软基上加筋土垫层中产生的拉应力最大；加筋砂砾土路堤在振动荷载作用下动变形反应较小，具有良好地动力稳定性。
