加宽路基对地基产生的附加应力计算方法研究

Research on calculation of superimposed stress on foundation caused by widened subgrades

对梯形荷载作用下地基土中任意点的附加应力计算公式进行了推导,并对加宽路基对地基荷载进行了简化,通过推导计算,得出了高速公路改扩建工程中在加宽路基荷载作用下地基土中任意点附加应力的计算公式,为地基沉降计算分析奠定了理论基础。

The paper induces the calculation formula of superimposed stress at any point under trapezoidal load, simplifies the foundation load while widening the subgrade, through the induction and calculation, a calculated formula of superimposed stress at any point of foundation soil, which under loads of widened subgrades in the project of expressway extension, was proposed in this paper. This lay a theoretical foundation for the calculation of ground treatment.