Complex multi-aquifer mine water inrush water source identification method

Abstract

The invention discloses a complex multi-aquifer mine water inrush source identification method, which comprises the following steps: S1, establishing a mine water source database according to water chemical data of a known aquifer water sample; S2, taking the data subjected to data inspection and abnormal value processing as a modeling sample; S3, determining an identification index and a threshold value thereof, and judging the effectiveness of the identification index in the preliminary identification model by adopting back-substitution inspection; S4, according to the effective identification index and the Fisher identification method, establishing a comprehensive-stepwise identification method model; and S5, determining the identification index of the water sample to be determined, anddetermining and identifying the type of the water source through a comprehensive-stepwise identification method model. The method has the advantages that a characteristic ion contrast method, an ionproportionality coefficient method, a Fisher recognition method and the like are comprehensively adopted, different methods are adopted for water source recognition of different water-bearing layers,the method is simple and then complex, and mine water source types with complex hydrogeological conditions and more water-filled water-bearing layers are judged step by step.

Description

technical field [0001] The invention relates to the field of water source identification, in particular to a method for identifying water inrush sources in complex multi-aquifer mines. Background technique [0002] China is a country that uses coal as its main energy source. However, the hydrogeological conditions of China's coal deposits are complex and diverse, and the situation of mine water disasters is severe, which is an important factor affecting mine safety. Once a mine is flooded, it will not only cause huge economic losses, but may also cause casualties. Mine water source identification is an important basic work for mine water disaster prevention and control, which can provide a basis for water prevention measures and post-disaster rescue. The key to mine water source identification is to choose an appropriate water source identification method. [0003] At present, the main methods for mine water source identification include groundwater hydrochemical method, w...

AI Technical Summary

Problems solved by technology

[0007] The present invention adopts the following technical solutions to solve the above technical problems: a method for identifying water inrush sources in complex multi-aquifer mines, the method comprising the following steps:

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