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Coal mine underground reservoir environment risk assessment method

A technology for underground water reservoirs and environmental risks, which is applied in the field of mining engineering and can solve problems such as the inability to assess the environmental risks of groundwater environments

Pending Publication Date: 2021-03-26
CHNA ENERGY INVESTMENT CORP LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention provides an environmental risk assessment method for coal mine underground reservoirs to solve the problem of the underground water environment in the prior art when coal mine underground reservoirs store high salinity mine water or concentrated salt wastewater produced after advanced treatment of mine water. Technical issues that pose an environmental risk that cannot be assessed

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  • Coal mine underground reservoir environment risk assessment method
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  • Coal mine underground reservoir environment risk assessment method

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Embodiment Construction

[0048] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the simplified description of the present invention, rather than indicating or implying that the device or component referred to must have a specific orientation or a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance. Wherein, the terms "first position" and "second position" are two diff...

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Abstract

The invention provides a coal mine underground reservoir environment risk assessment method. The method comprises the following steps: analyzing coal rock physical and mechanical property parameters of an underground reservoir and wastewater components in the underground reservoir; obtaining goaf surrounding rock fracture form data and fracture development characteristic data; obtaining surrounding rock stress displacement and failure evolution rules according to the surrounding rock fracture form data and the fracture development characteristic data; determining a wastewater seepage range anda seepage path according to the physical and mechanical property parameters of the coal rock and the surrounding rock stress displacement and failure evolution rule; and determining the risk index ofenvironmental pollution of the wastewater in the underground reservoir to the surrounding underground water area according to the wastewater seepage range, the seepage path and the wastewater components. According to the scheme, the environmental risk of the coal mine underground reservoir wastewater storage technology is judged through a method of combining similarity simulation, numerical simulation and field measurement.

Description

technical field [0001] The invention relates to the technical field of mining engineering, in particular to an environmental risk assessment method for coal mine underground reservoirs. Background technique [0002] Coal mine underground reservoir is a safe, low-cost and large-scale water storage technology that makes full use of underground natural space and natural force to store and purify mine water, and provides effective technical support for the protection and utilization of groundwater resources in coal mining. After the coal seam is mined, the roof stratum has experienced a dynamic evolution process of "bending and subsidence-fissure development-broken collapse". The large-scale collapse of the rock stratum lags behind the formation of water-conducting fissures. This fissure will facilitate the diffusion of coal and affect the underground. Aquifers cause certain pollution, which will affect existing water resources and damage local ecosystems. Secondly, building an...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q10/06G06Q50/02G06F113/08G06F119/14
CPCG06F30/20G06Q10/0635G06Q50/02G06F2113/08G06F2119/14
Inventor 孔军峰武书泉虎晓龙李小龙张宗鲜宋喜东郭强李庭李井峰李全生周光华严永胜樊启高峻赵雷吕兆海
Owner CHNA ENERGY INVESTMENT CORP LTD
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