关键词: 道路工程；风险分区；层次分析法；土质边坡；监测

Abstract: Traditional slope monitoring focuses on the slope as a whole and pays less attention to the local deformation and damage of the slope, and the traditional monitoring technology has low precision and poor timeliness, which couldnt realize the timely capture of local deformation. Therefore, the soil slope was taken as the research object. Firstly, a slope hazard level model was constructed on the basis of analytic hierarchical analysis method, and the slope was monitored and classified according to the hazard level. Then, initial zoning and zoning optimization plans were developed for slope with different monitoring levels, which realized the zoning delineation of slopes. Finally, the feasibility and reliability of the proposed zoning technology system were verified by combining with the soil slope of a highway in Wanzhou, Chongqing. The research results show that the targeted monitoring based on slope zoning can realize rapid capture of local deformation, and slope zoning monitoring has a higher level of non-redundant equipment deployment compared to conventional monitoring. The monitoring scheme based on slope zoning is more scientific and the monitoring results are more reliable, which indicates that the zoning technology system is feasible. The results of the study can provide new solutions for monitoring other types of slopes.

Key words: highway engineering; risk zoning; analytic hierarchy process; soil slopes; monitoring