| During the construction of the freeway, the work of safety monitor of the roadbed sedimentation provides first-hand information for all kinds of researches, with large numbers of locale data. As the work of sedimentation monitor on freeway belongs to the field of the safety monitor, the monitored data are regarded as the important feedback signal of knowing labor characters of locale structures, the dependability of which affects related analysis results, and impacts the engineering quality directly. Therefore, it is necessary to analyze the dependability of the monitored data especially, before entering into the reasoning process.Based on the locale work of Xu-Su freeway safety monitor of the roadbed sedimentation, the article mainly analyses the dependability of the monitored data on the freeway roadbed sedimentation, and researches the applicability of the calculation methods. The main content is as follows:1. In order to insure the dependability of the monitored data hi measuring, from two sides of the precision and accuracy of the measured data, every step is analyzed by the potential errors and the causation by any possibility on the monitor systems in the measure process.2. The methods that differentiate the soil practical sedimentation from the monitored data are recommended, when the data are measured credibly in the measure process. Using for reference part of the achieved production in the dam safety monitor fields etc., the distinguishing rule is established for the exceptional monitored data of the freeway.3. Based on the space-time character of the monitored data, the discredited abnormal data are examined by the gray theory and the element analysis, and the method is tested in a project finally.4. Combining the project, the applicability of the calculation methods in practice, which is based on the locale monitored data on the roadbed sedimentation, is researched by contrastive analysis, and some valuable conclusions are made in practical project.
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