【摘要】 利用动力有限元 ,通过对地基的不同刚度值对轨底动应力、基床表层动应力衰减规律的研究 ,并结合已有的不同路堤高度和地基变形情况下的地基临界刚度值 ,提出了高速铁路地基刚度的合理取值范围更多还原

【Abstract】 Using dynamic finite element method,the characteristics of the dynamic stress and dynamic stress decreasing in the embankment under different foundation stiffness were analyzed.Based on the critical foundation stiffness under the conditions of different height of embankment and different requirement of foundation settlement.Finally,a range of the reasonable foundation stiffness is given.更多还原