Open-pit mine water gushing direction identification and treatment method

A technology for direction identification and open-pit mining, which is applied in open-pit mining, earthwork drilling, special mining, etc., can solve the problems of large number of grouting holes, large hole depth, high investment and operating costs, and achieve the purpose of making up for ambiguity, Strengthen the monitoring of water volume and prevent deformation caused by thermal expansion and contraction

Inactive Publication Date: 2020-09-22
ANSTEEL GRP MINING CO LTD
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Problems solved by technology

The surface dewatering method is mainly used in the pre-drying stage, which is only suitable for the condition of small excavation depth, and it is not suitable for mines in the later stage of mining; the underground dehydration method mainly includes roadway dewatering and underground drilling. The method is generally applicable to the situation whe

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  • Open-pit mine water gushing direction identification and treatment method
  • Open-pit mine water gushing direction identification and treatment method
  • Open-pit mine water gushing direction identification and treatment method

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037] Such as Figure 1-Figure 6 As shown, a method for identifying and controlling water gushing direction in an open-pit mine of the present invention comprises the following steps:

[0038] Step 1. Conduct hydrogeological survey

[0039] Using the digital elevation model (DEM) provided by the Geographic Data Cloud of the Chinese Academy of Sciences, the ArcGIS hydrological analysis module is used to extract the information of the river network, sub-basin boundaries, watersheds and related watershed geomorphology in the study area, determine the hydrogeological survey area, and initially describe the groundwater in the study area and the runoff process of surface water to clarify the hydrogeological characteristics of the mining area.

[0040] Step 2. Sampling and cluster analysis based on hydrochemical characteristics

[0041] Collect water sampl...

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Abstract

The invention relates to an open-pit mine water gushing direction identification and treatment method. The method comprises the following steps that S1, hydrogeological survey is carried out; S2, water samples in a wet season and a dry season in the region are correspondingly collected, and clustering analysis based on hydrochemical characteristics is carried out; S3, according to the deduced water gushing source range, a pumping test is carried out; S4, if the hydrogeological parameters have no obvious difference, the water gushing source mixing ratio is calculated through a mixing model, iterative calculation is carried out through data of multiple observation wells, the water gushing direction is judged accordingly, and the treatment range is defined; and S5, water pumping and drainingtreatment is conducted, a river anti-seepage treatment method on one side of the pit gushing direction is adopted, and mining area earth surface water interception and drainage are treated. The methodhas the advantages that the local hydrogeological characteristics and the groundwater seepage field characteristics are effectively combined to timely treat the slope gushing water, the pit gushing water accident is prevented, and the pit safety level and the production efficiency are improved.

Description

technical field [0001] The invention belongs to the technical field of mine water gushing direction identification and control, and in particular relates to an open-pit mine water gushing direction identification and control method. Background technique [0002] my country is a country that uses open-pit mining for iron ore, and more than 90% of the self-produced iron ore comes from open-pit mining. Usually, the geological structure and hydrogeological conditions of the ore deposit and its surrounding rocks are extremely complex, so there are hidden dangers of water damage in a large number of side slopes and underground roadways formed by mining, and mine water gushing accidents occur from time to time, and often cause serious damage consequences. Most of the mines in our country belong to the type with complex hydrogeological conditions. With the continuous exploitation of mine resources, more and more mines have entered deep mining areas, and the hydrogeological condition...

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Application Information

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IPC IPC(8): E21C47/00E21B49/08E21B47/00
CPCE21B47/00E21B49/087E21C47/00
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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