营运高速公路边坡技术状况评定方法研究

Study on Technical Status Evaluation Method of Slope for Operating Highway

营运高速公路边坡技术状况评定是提升公路边坡管养的科学水平和保持边坡长期良好服役性能的重要前提。在统计分析广东省公路边坡大量历史检测数据和工程实践的基础上,提出了一种简便实用的营运高速公路边坡技术状况评定方法,阐述了边坡本体、支护系统和排水系统等指标对边坡技术状况评分结果的影响,以及边坡本体风险、病害后果影响和坡体稳定性等修正系数的取值依据,最后选取典型公路边坡检测工程案例验证本文方法的可靠性。分析结果表明,运用本文方法能够获得与实际情况相符的评定结果,计算评分值与边坡病害程度之间具有良好的相关性,为类似营运公路边坡技术状况检测与评定工作提供参考。

The technical status evaluation of operating highway slope has been an important premise to improve the scientific level of highway slope management and maintain the long-term good service performance.Being based on the statistical analysis on a large number of detection data and engineering practice of operating slopes in Guangdong,in the paper,a simple and practical method for the technical condition of operating slopes has been put forward,with the influence of indexes such as slope body,support system and drainage system on the scoring results being expounded,as well as the value criterion of correction coefficients such as slope risk,disease consequence and slope stability.Finally,some typical engineering cases have been selected to verify the reliability of this method.The analysis results have shown that the evaluation results consistent with the actual situation can be obtained by using the method in this paper,and there is a good correlation between the calculated score and the degree of slope disease,which could provide references for the detection and evaluation of the technical conditions of similar operating highways.