Coal gangue leachate infiltration soil column simulation system and characteristic parameter determination method

A simulation system and coal gangue technology, applied in soil material testing, measuring devices, permeability/surface area analysis, etc., can solve the problems that small test pieces are difficult to represent the actual situation of the soil, poor convenience, inconvenient cleaning of instruments, etc.

Inactive Publication Date: 2016-10-12
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No matter what kind of soil column is used for the test, there are still the following problems: ① The length of the single section of the soil-loading component in the soil column experiment is large, and the convenience is poor, so that the installation of the soil column is difficult, which causes inconvenience to the cleaning of the instrument; ② The installation of monitoring equipment is cumbers

Method used

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  • Coal gangue leachate infiltration soil column simulation system and characteristic parameter determination method
  • Coal gangue leachate infiltration soil column simulation system and characteristic parameter determination method
  • Coal gangue leachate infiltration soil column simulation system and characteristic parameter determination method

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Example Embodiment

[0138] Example one

[0139] The multiple forms of coal gangue leaching liquid replenishment simulation device (C) used in this embodiment in conjunction with the present invention is a low-strength coal gangue leaching liquid replenishment simulation device (16).

[0140] Referring to Figure 1, the low-strength coal gangue leachate full infiltration replenishment simulation device (16) includes a coal gangue leachate bucket (16-1) with a scale on the outside, and a coal gangue leachate bucket (16-1). The lower part is connected with the coal gangue leaching liquid nozzle (16-9) through the infusion pipe (16-12), and the coal gangue leaching liquid nozzle (16-9) is set on the top of the cylindrical member (10) on the upper part of the soil column experiment standard member (4) , The cylindrical member (10) is 2-5 cm higher than the upper surface of the original soil sample (12) with a water pressure impact plate (A), and the water pressure impact plate (A) is provided with sieve hol...

Example Embodiment

[0205] Example two

[0206] The various forms of coal gangue leaching liquid replenishment simulation device (C) used in this embodiment in conjunction with the present invention is a medium-strength coal gangue leaching liquid replenishment simulation device (17) with radial inflow.

[0207] Referring to Figure 2, the medium-strength coal gangue leachate has a radial inflow infiltration replenishment simulation device (17) including a coal gangue leaching liquid container (17-9) arranged in the cylindrical member (10) and a coal gangue leaching liquid The circular hole (17-10) at the bottom of the container (17-9), the cylindrical member (10) is 2-5 cm higher than the original soil sample (12), and there is an anti-water pressure impact plate (A), The anti-water pressure impact plate (A) is provided with sieve holes; the top of the coal gangue leaching liquid container (17-9) is provided with a pressure control pipe (17-8) and an inlet pipe connected to the external coal gangue le...

Example Embodiment

[0230] Example three

[0231] The various forms of coal gangue leachate replenishment simulation device (C) used in this embodiment in conjunction with the present invention is a high-strength coal gangue leaching liquid replenishment simulation device (14);

[0232] 3, the high-strength coal gangue leachate stable infiltration replenishment simulation device (14) includes a gangue leachate bucket (14-1) with a scale on the outside, and a coal gangue leachate bucket (14-1) The lower part is connected with the coal gangue leaching liquid nozzle (14-9) through the infusion pipe (14-12), and the coal gangue leaching liquid nozzle (14-9) is set on the top of the cylindrical member (10) on the upper part of the soil column experiment standard member (4) , The cylindrical member (10) is 2-5 cm higher than the upper surface of the original soil sample (12) with a water pressure impact plate (A), and the water pressure impact plate (A) is provided with sieve holes; U-shaped water head A l...

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Abstract

Provided are a coal gangue leachate infiltration soil column simulation system and a characteristic parameter determination method. The simulation system comprises a bottom member, one or more soil column experiment standard members which are connected to the bottom member in series and multiform coal gangue leachate supply simulation systems on the tops of the soil column experiment standard members; simulation system soil loading members are multiple standard members and are subjected to automation control through a computer, determination of characteristic parameters is achieved based on the system, determining steps and a calculation method are provided, when determination is conducted, large-diameter undistributed soil columns are adopted for conducting an indoor experiment, and the multiform coal gangue leachate supply simulation systems are used for simulating four hydraulic boundary conditions, namely, a low strength coal gangue leachate all filtration boundary condition, a medium strength coal gangue leachate runoff filtration boundary condition, a high strength coal gangue leachate stable filtration boundary condition and a coal gangue leachate melt filtration boundary condition. The coal gangue leachate infiltration soil column simulation system and the characteristic parameter determination method have the advantages of being high in practicability, good in use effect and convenient to apply and popularize.

Description

technical field [0001] The invention belongs to the field of environmental protection in mining areas, and in particular relates to a soil column simulation system for coal gangue leachate infiltration and a method for measuring characteristic parameters. Background technique [0002] Precipitation mainly refers to rainfall and snowfall. Moisture reaches the ground from the atmosphere in various forms. Other forms of precipitation include dew, frost, hail, etc. Precipitation is an important part of the hydrological cycle and the basic source of water for human beings. Precipitation data is the basis for analyzing reasonable flood and drought conditions and basin drought conditions, and is also the basis for the planning, design, management and application of water resources development and utilization, such as flood control, power generation, irrigation, etc. The process of precipitation infiltration to recharge groundwater is one of the most basic links in the "three water...

Claims

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Application Information

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IPC IPC(8): G01N33/24G01N15/08
CPCG01N15/08G01N33/24
Inventor 毛正君
Owner XIAN UNIV OF SCI & TECH
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