Evaluating method for special vulnerability of local ground water based on measured osmotic coefficients of homogeneous water-bearing stratum

A technology of permeability coefficient and evaluation method, which is applied in the field of environmental science, environmental risk, and hydraulic engineering, and can solve problems such as complex devices, cumbersome calculations, and high equipment costs
CN102901799AInactive Publication Date: 2013-01-30CHANGZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHANGZHOU UNIV
Publication Date
2013-01-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an evaluating method for the special vulnerability of the local ground water built by combining the local pollutants, which represents the special vulnerability of the local ground water based on a GIS (Geographic Information System) platform. The evaluating method comprises the following three steps of: (1) selecting the main factors for influencing the specificity of the local ground water based on a DRASTIC (Index=DrDw+RrRw+ArAw+SrSw+TrTw+IrIw+CrCw) evaluating method, building an indicator system of the special vulnerability of the local ground water and evaluating the special vulnerability of the local ground water caused by provincial characteristic pollutants through a fuzzy mathematic method; (2) constructing an actual measurement device for the osmotic coefficients of the local ground water, and actually measuring the osmotic coefficients of the local ground water; and (3) repeatedly calculating the special vulnerability of the local ground water based on the GIS technology, and visually representing the special vulnerability of the local ground water.
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Description

technical field

[0001] The invention belongs to the field of environmental science and environmental risk, in particular to the field of water conservancy engineering and visualization technology, and a method for comprehensively evaluating the special vulnerability of regional groundwater. Background technique

[0002] Groundwater is an important part of the water cycle, an important water source for urban water supply in my country, and one of the important drinking water sources. With the increasing development of groundwater resources, its pollution is becoming more and more serious. Such as pollution by agricultural non-point sources and urban rainwater runoff; direct discharge pollution of sewage and solid waste generated by urbanization and industrialization; pollution from mining and waste gas pits; salt water intrusion caused by excessive exploitation of groundwater and pollution of natural harmful substances Dissolution leads to deterioration of groundwater qualit...

Claims

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