Complex multi-aquifer mine water inrush water source identification method

A technology for water source identification and mine water inrush, which is applied in the field of water source identification to achieve the effect of improving speed and accuracy

Active Publication Date: 2019-07-09
ANHUI UNIVERSITY +1
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Problems solved by technology

[0007] The present invention adopts the following technical solutions to solve the above technical problems: a met

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  • Complex multi-aquifer mine water inrush water source identification method
  • Complex multi-aquifer mine water inrush water source identification method
  • Complex multi-aquifer mine water inrush water source identification method

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Embodiment 1

[0033] Such as figure 1 As shown, a method for identifying the source of water inrush in complex multi-aquifer mines in this embodiment includes the following steps:

[0034] S1: According to the hydrochemical data of the known aquifer water samples, the mine water source database is established; the hydrochemical data of the water samples are the mass concentrations of various ions and the milligram equivalents of each ion in each aquifer water of the coal mine to which the water sample belongs. Ratio; conventional ions can be Na + +K + , Ca 2+ , Mg 2+ , Cl - 、HCO 3 - , SO 4 2- etc.; this water chemical data is used as the database construction index for establishing the water source database.

[0035] S2: The data after data inspection and abnormal value processing are used as modeling samples; the method of data inspection is anion-cation balance inspection, and the error is controlled within ±5%. In the anion-cation balance test of the data test: the screening an...

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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...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/02G06K9/62
CPCG06Q10/0639G06Q50/02G06F18/21322G06F18/21324G06F18/2431Y02A20/152
Inventor 姜春露安艳晴郑刘根傅先杰程世贵周学年
Owner ANHUI UNIVERSITY
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