为解决单个测点的定量数值安全监控指标难以实现渠堤工程整体安全监控问题，需要建立基于多源信息的渠堤工程安全定性评判准则。在将效应量测值异常现象归纳为数值大小异常、变化过程异常、变化趋势异常和变化规律异常等基本表现形式的基础上，汲取长距离引调水工程安全运行的工程经验和专家知识，基于不同测点测值异常表现上的关联性和空间分布上的关联性、不同监测效应量之间相互作用和相互影响的关联性、不同特性渠堤工程破坏机理在工程中的外在表现等因素，构建融合多测点、多效应量和巡视检查的渠堤工程运行安全多指标评判准则。定性安全评判准则与定量数值监控指标相互配合，可更好地保障引调水工程的安全运行。

The safety of water diversion project is a public safety problem related to the national economy and people's livelihood,and the monitoring index is the scientific criterion to ensure the project operation safety.The quantitative monitoring index defined the safety boundary in the form of numerical value and tendency of the monitoring effect variables,but it focused on a single monitoring point and the local behavior.It was difficult to monitor the overall safety behavior of the canal by the quantitative monitoring index for a single monitoring point because the line of the canal was too long,and the construction and operation conditions of canal ware complex in water diversion project,so it is necessary to establish the qualitative evaluation criteria to provide a scientific basis for canal safety evaluation based on multi-source information. The abnormal phenomenon of a single monitoring point was the basis of establishing qualitative evaluation criteria,to be summarized as monitoring value,variation process,variation trend,and variation regularity.The abnormal value of a single monitoring point did not mean the operation behavior of the monitoring section or the monitoring area were abnormal.To assess the overall operation behavior of the canal,multi-point information was used in combination.The qualitative evaluation criteria of canal safety with multi-point information were established based on the study of the correlations of monitoring information among different monitoring points on the same monitoring section or monitoring area,which included the correlation in abnormal performance and distribution of multi-monitoring points. Deformation,seepage,stress,and strain ware occur under the action of various load combinations during the operation of the canal,and these effect variables described the operation behavior of the canal from different angles.The qualitative evaluation criteria of canal safety with multi-monitoring effect variables information were established based on the analysis of interaction and mutual influence and the study on the correlations among different effect variables. The qualitative evaluation criteria of canal safety with the information from field inspection were established based on the analysis of the working mechanism of the canal with different characteristics and the study on the outward manifestation of the working mechanism.The qualitative evaluation criterion was an important form of safety monitoring index of the canal and played a specially important role in canal safety monitoring.Operation safety of the canal in water diversion projects can be more safeguarded by the combination of qualitative safety evaluation criteria and quantitative numerical monitoring index.