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典型工况下填方路基稳定安全系数取值探讨

, PP. 16-23

Keywords: 道路工程,安全系数,简化毕肖普法,路基稳定性,典型工况

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Abstract:

?针对现行相关规范填方路基稳定安全系数与所处正常工况、暴雨或连续降雨工况、地震荷载作用工况这3种典型工况不相匹配的问题,通过算例和相关规范稳定安全系数取值分析,对填方路基稳定安全系数取值进行了探讨,提出3种典型工况条件下,基于简化毕肖普法的路基稳定安全系数建议值。研究结果表明:不同等级公路在正常工况、暴雨或连续降雨工况、地震荷载作用工况这3种典型工况下,路基稳定安全系数取值分别为1.3~1.35,1.15~1.25,1.10~1.20。

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