银山铅锌矿尾矿坝浸润线最大Lyapunov指数分析

浸润线是层矿坝的重要监测项目，长期以来对监测数据缺乏系统分析。为了揭示浸润线的演化规律，通过相空间重构，对银山铅锌矿层矿坝浸润线监测数据进行了最大Lyapunov指数分析。结果表明，层矿坝浸润线时间序列存在正的最大Lyapunov指数；最大Lyapunov指数可以用来评价浸润线状态，其数值较大时，浸润线状态较差。这些结果对合理分析监测数据，进而指导层矿坝安全管理将会有重要意义。

Analysis of the Largest Lyapunov Exponent of the Seepage Line of Tailings Dam of Yinshan Lead-zinc Mine

Seepage line is a major item of monitoring, which data has lacked systematic analsis.To reveal the evolution law of the seepage line, the largest Lyapunov exponent was made by means of phase space reconstruction of the monitoring data of tailings dam of Yinshan Lead zimc Mine. The results indicate that there is a largest positive lyapunov exponent in the time series of the seepage line, which can be used to evaluate the status of the seepage line, with greater value meaning poorer status. This might be of important significance to the reasonable analysis of monitoring data for supervising the safety management of tailings dam.