Traceability and prediction of underground mine pit water surge based on asynchronous fingerprint and upper bound prediction
The underground mine pit water source is complex,which makes it difficult to accurately trace and predict the source.It is easy to cause safety accidents.In order to accurately trace the source of mine pit water surge and predict the water surge volume,according to the difference of the relationship between the different sources of mine water surge and atmospheric precipitation,the asynchronous fingerprint method is initiated considering asynchronous factors in fingerprint analysis.The asynchronous fingerprint method is used to compare and analyze the time lag characteristics of the impact between at-mospheric precipitation and mine pit water surge,so as to accurately trace the source of mine pit water surge;According to the fluctuation characteristics of the mine pit water surge in the early stages,the upper bound data is extracted,and the maximum water inflow of the mine pit water surge is analyzed and predicted using the upper bound envelope prediction.Through case analysis of a certain bauxite mine,the asynchronous fingerprint method determines that the mine it water surge comes from atmospheric precipitation,which affects the mine pit water surge 5 days later;The maximum water inflow of the mine pit predicted by the upper bound envelope is 10 218 m3/d.According to this,the number of water inrush accidents has been reduced by 68％and the economic loss of water disaster has been reduced by 91％after the targeted closure and drainage measures have been designed for the mine.It shows that the asynchronous fingerprint combined with the upper bound envelope prediction can accurately trace and predict the mine pit water surges.
mine pit water surgestraceabilitypredictionfingerprint mapupper bound prediction
万方数据
维普
