不同区域公路路基的结构稳定性分析

Analysis of Structural Stability of Highway Subgrade in Different Regions

基于道路工程环境中不同区域路基的工程施工和运行特点,以采用层次分析法对双层路基的结构稳定性进行了分析。结果表明不同区域公路路基随着荷载作用次数的增加,荷载频率为1Hz、2Hz和3Hz时的累积应变都呈现逐渐增大的趋势,且在相同荷载作用次数下,荷载频率越高则累积应变越小;在相同荷载作用次数下,硬土在相同荷载频率下对应的累积应变要明显小于软土。

Based on the engineering construction and operation characteristics of roadbeds in different areas in the road engineering environment,the structural stability of double-layer roadbeds was analyzed by the analytic hierarchy process.The results show that with the increase in the number of load actions on highway subgrades in different regions,the cumulative strains at the load frequencies of 1Hz,2Hz and 3Hz all show a gradually increasing trend,and under the same number of load actions,the higher the load frequency,the smaller the cumulative strain;under the same number of loads,the cumulative strain of hard soil under the same load frequency is significantly smaller than that of soft soil.