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大坝基础的工作性态,很大程度上受控于帷幕体的完好程度和止水效果。帷幕体的防渗性能及其时效,可由传感器采集到的地下水宏观动态反映出来,然而在多个传感器采集的数据中,常常出现各传感器反馈的信息不一致的现象。为消除这种现象,采用分布式多传感器融合方法,并根据有无反馈信息结构,分别进行融合,并将其应用于评价某坝13坝段帷幕体防渗效果,融合后的结果较符合规律。经分析知:2003~2008年间,帷幕体防渗效果呈现了阶段性衰减;其中,2005年和2008年为该坝段帷幕体防渗性能的相对明显衰减时期。建议加强监测,为必要时采取工程措施提供依据。
The working nature of the foundation of the dam is largely controlled by the integrity of the curtain body and the sealing effect. Anti-seepage performance and aging of the curtain body can be reflected dynamically by the macroscopic dynamic of the groundwater collected by the sensor. However, the information collected by multiple sensors often shows inconsistent information feedback from each sensor. In order to eliminate this phenomenon, the distributed multisensor fusion method is adopted, and the fusion is respectively carried out according to the presence or absence of feedback information structure, and applied to evaluate the curtain seepage prevention effect of dam 13 dam, the result after fusion is more in line with the law . The analysis shows that: from 2003 to 2008, curtain seepage prevention effect showed a phased decline; of which, 2005 and 2008 for the dam curtain impermeable performance of the relative obvious decay period. It is suggested to strengthen monitoring and provide basis for taking engineering measures when necessary.