A Method for Evaluating Contaminant Transport Characteristics in Unfilled Rough Single Fractures

A pollutant, single-fracture technology, applied in flow characteristics, instruments, measuring devices, etc., can solve problems such as the inability to accurately evaluate the impact of the migration process
CN106596335BActive Publication Date: 2019-05-31NANJING HYDRAULIC RES INST +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING HYDRAULIC RES INST
Publication Date
2019-05-31

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Abstract

The invention discloses a method for evaluating the migration characteristic of pollutants in a no-filling rough single fracture. The method concretely comprises the following steps: determining the kind and the dissolvability of the pollutants; establishing a rough single fracture model by using a fractal theory; establishing a no-filling rough single fracture value model based on a finite element technology; evaluating the migration process of the pollutants in the fracture by using a convection-dispersion equation for soluble pollutants; and evaluating the migration process of the pollutants in the fracture by using a level set technology for non-aqueous phase liquid pollutants. The method has the following advantages: 1, evaluation of the migration characteristic of the soluble pollutants in the fracture is realized; 2, evaluation of the migration characteristic of the non-aqueous phase liquid pollutants in the fracture is realized; and 3, migration parameters of the pollutants in the fracture, obtained in the invention, can be used as underground water pollution repairing base parameters.
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Description

technical field

[0001] The invention relates to a method for evaluating the migration characteristics of pollutants in unfilled rough single cracks, and belongs to the technical field of pollutant migration characteristics evaluation. Background technique

[0002] Groundwater pollution is a major problem facing groundwater resources at present. To solve the problem of groundwater pollution, it is necessary to solve the two major problems of pollutant migration and restoration in the aquifer medium. Accurate evaluation of the migration characteristics of pollutants in the aquifer medium is an effective method for groundwater pollution. Basic premise of restoration. Aquifers are mainly divided into porous aquifers, fractured aquifers and karst aquifers according to the type of medium. The research on pollutant migration and restoration in porous aquifers is the earliest and the results are the most abundant. However, the height of fractured aquifers and karst aquifers is very ...

Claims

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