车辆荷载下填方路基作用影响深度研究

该文选取沪昆高速某段路基、路面相关参数计算车辆荷载作用于路面的影响深度,同时将车辆荷载与路基填筑土体共同作用时作为附加应力作用于地基上的作用深度,计算表明车辆荷载的作用深度有限,路面结构层越厚,材料模量越大,则车辆荷载衰减就越快,传递至路基的深度就越小;作用于地基的影响深度主要与路基的填土高度有关,填土高度越大,作用于地基的影响深度就越深。

In this paper,the influence depth of vehicle load on the pavement is calculated by selecting the relevant parameters of subgrade and pavement in a section of Shanghai-Kunming Expressway.At the same time,the depth of action of vehicle load and subgrade filling soil as additional stress acting on the foundation.The calculation shows that the depth of vehicle load is limited,the thicker the pavement structure layer is,the greater the material modulus is,the faster the attenuation of vehicle load is,and the smaller the depth of vehicle load transmitted to subgrade;The depth of influence on the foundation is mainly related to the height of subgrade filling.The greater the height of filling,the deeper the depth of influence on the foundation.