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山区公路崩塌地质灾害危险性分级系统(RFRS)

, PP. 51-57

Keywords: 道路工程,崩塌灾害,高速公路,危险性分级,地质因子,岩质边坡

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Abstract:

针对我国山区公路沿线岩质边坡崩塌评价问题,提出了公路崩塌地质灾害危险性分级系统(RFRS)。在对地形因子、公路因子、地质因子、气候因子、崩塌历史因子和防护措施加权乘子6项指标定性分析和定量化的基础上,制订了公路崩塌地质灾害危险性分级依据、分级标准。通过对云南省水富—麻柳湾高速公路沿线崩塌地质灾害进行RFRS易发区评价,并与崩塌地质灾害易发区评价方法进行对比分析,结果表明(1)复兴段沿线崩塌或潜在崩塌灾害危险性等级达到B级的路段多达4.3km,建议对达到B级以上的路段定期安排专业人员进行数据采集和分析;(2)FRRS分级系统具有考虑因素全面、野外填表操作方便、分级科学、便于实际应用的优点。

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