基于灰色算子的尾矿坝浸润线混沌研究

Study on chaos of saturation line of tailings dam based on grey operator

对于尾矿坝浸润线时间序列,通过建立一个灰色算子,来弱化坝体高度、库内水位等因素所带来的确定性影响,突出混沌特性,形成新的时间序列,对该序列进行相空间重构后,求取关联维。德兴铜矿2# 尾矿坝浸润线观测数据的分析结果表明,灰色算子能较好地处理混沌问题,浸润线时间序列存在着非整数维,是一个混沌系统;对于尾矿坝安全不能进行长期预测,而需要长期监测。

For time series of the saturation line of tailings dam, a grey operator is put forward to strengthen the chaotic character, as well as to weaken the deterministic influence resulting from the dam抯 height, water level of reservoir and so on, and then a new time series is work out. After processing the new time series, the phase space is reconstructed and the correlation dimension is analyzed. The results obtained by analyzing the saturation line data of tailings No.2 dam in Dexing Copper Mine show that the grey operator can be used in chaos analysis, and the time series of saturation line is chaos system for being fractal dimension. In long term, it is necessary to monitor the safety of tailings dam that cant be forecasted.