高速公路路堤基底承载力计算方法分析

基于高速公路路基基底应力的三种计算方法，即比例荷载法、等效荷载法、三维数值分析软件FLAC3D，对高速公路路堤基底承载边进行计算。通过计算结果的对比分析，归纳了路基基底应力随着路堤高度和基底软土厚度变化的分布规律，并提出了路基基底应力的计算公式，可作为路基基底承载力或软基清淤的量化评定，避免人为地判断地基处理合格性。

Analysis on Method Calculating Base Bearing Capacity of Highway Embankment

Based on three methods calculating base stress of highway subgrade, i.e. proportional load method, equivalent load method and 3D numerical analysis software FLAC3D, the base bearing capacity of highway embankment was calculated. Through comparison and analysis of the calculation results, the laws of base stress of subgrade changing with the embankment height and thickness of soft soil at the base was generalized, then the calculation formula thereof was proposed, through which quantitative assessment of base bearing capacity or soft foundation dredging may be carried out, avoiding artificial judgment on conformity of foundation treatment.