以高速公路岩质高边坡风险评估指标体系为研究对象,在调查多条高速公路300余处岩质高边坡的基础上,根据高速公路岩质高边坡的养护管理的工程实际并结合已有研究成果,确定高速公路岩质高边坡的4种主要破坏模式,并针对每种破坏模式总结岩质高边坡失稳风险的主要影响因素及相应风险检查指标,根据各检查指标的重要性程度结合AHP方法(层次分析法)计算得到各指标所占权重,建立适于高速公路边坡养护管理的岩质高边坡风险评估指标体系.最后结合工程实例,验证该方法的准确性和有效性.研究结果表明:此风险评估指标体系提出了一套完整的高速公路岩质高边坡风险评估方法和养护对策,对高速公路高边坡管养单位确定岩质高边坡滑坡风险并合理安排养护资金有参考价值.%The risk assessment indexes system of high rock slope distributed to expressway was studied. According to practical situation of expressway high rock slope engineering and the existing research results, four main failure modes of the high rock slope of expressway were determined, and the main influence factors and corresponding risk examination index of the high rock slope were summarized for each failure mode on the basis of the investigation of more than 300 high rock slopes distributed to several expressways. The weight of each index was calculated according to the importance degree of each examination index based on the method of analytic hierarchy process. The engineering example was analyzed by the method. The results prove the correctness and effectiveness of this method. The risk assessment indexes system put forward a set of comprehensive risk evaluation methods and the corresponding maintenance countermeasure, which has important reference for determining high rock slope landslide risk and reasonably arranging maintenance funding of expressway slope management and maintenance unit.
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