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Surface mine water source identification method based on hydrogen and oxygen isotope analysis

A water source identification and isotope technology, applied in the field of geological research, to achieve a wide range of effects

Pending Publication Date: 2020-09-11
ANSTEEL GRP MINING CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of identifying the source of water gushing from the slope and underground transportation roadway caused by open-pit mining, and propose a method for identifying water sources in open-pit mines based on hydrogen and oxygen isotope analysis

Method used

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  • Surface mine water source identification method based on hydrogen and oxygen isotope analysis
  • Surface mine water source identification method based on hydrogen and oxygen isotope analysis
  • Surface mine water source identification method based on hydrogen and oxygen isotope analysis

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Embodiment 1

[0029] This example provides a method for identifying water sources in open-pit mines based on hydrogen and oxygen isotope analysis. This method takes water gushing from the slope of Dagushan Iron Mine in Anshan and water gushing from underground transportation roadways as examples to verify the effectiveness of this method in identifying the source of open-pit mines. property, the flow chart of the method is as figure 1 shown.

[0030] The perennial excavation of the Dagushan Iron Mine has created a huge precipitation funnel, and the excavation has disturbed the unloading of the rock mass to form a large number of joints and fissures. This makes the groundwater around the mining area continuously collect into the mine pit, resulting in serious water gushing on the mine slope and underground transportation roadway. The water gushing has caused a serious drop in the groundwater level and water quality deterioration around the mining area. However, years of prevention and contro...

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Abstract

The invention relates to a surface mine water source identification method based on hydrogen and oxygen isotope analysis. The method comprises the following steps: determining a mining area water sample sampling range according to local hydrogeological data, and carrying out sampling to obtain a mine gushing water sample; carrying out hydrogen and oxygen isotope analysis on each obtained water sample to obtain values of delta<18>O and deltaD in each water sample; determining a local rainfall line; drawing hydrogen and oxygen isotope relationship diagrams of different water samples by taking the delta <18> O as a horizontal coordinate and deltaD as a longitudinal ordinate; observing a relationship between the water gushing sample point distribution position and the local rainfall line, judging a water source cause, observing the distribution positions of the underground water sampling point and the surface water sampling point, judging an underground water mutual supply relationship andthe evaporation intensity, and identifying a surface mine water gushing source according to the hydrogen-oxygen isotope relationship diagrams of different water samples. The method has the advantagesthat the migration path of the underground water in the mining area is well reflected and identified, the research on identifying the mine gushing water source is more scientific, and the applicationrange is wide.

Description

technical field [0001] The invention relates to the technical field of geological research, in particular to a method for identifying water sources in open-pit mines based on hydrogen and oxygen isotope analysis. Background technique [0002] The continuous mining process of open-pit mines creates huge precipitation funnels, and the groundwater around the mining area continuously collects into the mine pits, which makes the open-pit excavation slopes and underground transportation roadways there are hidden dangers of water damage, and even water gushing accidents occur from time to time, which often cause serious consequences. Therefore, carrying out research work on the identification of sources of mine water hazards, disaster-causing mechanisms, and prevention and control measures is crucial to scientifically preventing mine water hazards, improving mine safety management accident management systems and reasonable emergency countermeasures and measures, effectively reducing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/10G01N33/18
CPCG01N1/10G01N33/18
Inventor 张宝才亢建民洪大华范大海刘述栋宫长亮
Owner ANSTEEL GRP MINING CO LTD
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