Method used for evaluating frangibility of underground water

An evaluation method and vulnerability technology, applied in the field of environmental science and environmental risk, can solve problems such as inapplicability

Active Publication Date: 2013-11-27
CHINESE ACADEMY FOR ENVIRONMENTAL PLANNING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows for accurate risk analysis through evaluating soil water damage caused during drilling operations without relying solely upon specific factors like mineralogy (Euclidian) levels. It also includes an algorithm called Vickersity Index which helps identify areas where there may have been more severe weather events compared with other locations within those regions. Overall this system provides valuable insights into how well underground structures are protected from damaging environmental impacts such as rain-fed snow fall and flooding.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving understanding of soil-based environmental issues related to underground aquifer systems such as groundwater contamination by waste disposal facilities (WFD). Current methods for evaluating potential sources of these substances require extensive laboratory analysis that can only provide limited data at different stages during an evaluation period.

Method used

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  • Method used for evaluating frangibility of underground water
  • Method used for evaluating frangibility of underground water
  • Method used for evaluating frangibility of underground water

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0017] like figure 1 As shown, the groundwater vulnerability assessment method provided by the embodiment of the present invention includes:

[0018] Step 101: Obtain groundwater types, vulnerability evaluation indicators and parameters according to boreholes, empirical values ​​or field pumping tests.

[0019] In this embodiment, the type of groundwater in step 101 may include: pore water, pore confined water or karst water; the vulnerability evaluation index may include: intrinsic vulnerability index and / or special vulnerability index; wherein, intrinsic vulnerability Indicators include: soil medium, buried depth of groundwater table, net recharge, thickness of cohesive soil layer in vadose zone, permeability coefficient, aquifer thickness and terrain slope; special vulnerability indicators include: pollutant migration and transformation One or more of regularity, density of river network, type of land use and extent of groundwater extraction.

[0020] Among them, the soil...

Embodiment 2

[0040] like Figure 4 As shown, the groundwater vulnerability assessment method provided by the embodiment of the present invention, the method and the figure 1 Similar to the one shown, except that it also includes:

[0041] Step 105, verify the groundwater vulnerability assessment map.

[0042] In this embodiment, the verification process in step 104 may include: verification according to a single-factor pollution evaluation model; and / or verification according to a single-point comprehensive evaluation model; and / or verification according to a tracer experiment.

[0043] Among them, the verification process according to the single-factor pollution model includes: obtaining the characteristic pollutant concentration of each single point in the study area and the corresponding groundwater vulnerability index; calculating the correlation degree of each single point characteristic pollutant concentration and the corresponding groundwater vulnerability index ρ, the

[0044] ...

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Abstract

The invention discloses a method used for evaluating frangibility of underground water, and belongs to the field of environmental science and environmental risk. The method is capable of solving a problem that existing evaluation methods of frangibility of underground water are not suitable for the conditions of our country. A technical scheme of the invention comprises following steps: underground water type, frangibility evaluation indexes and parameters are obtained by hole drilling, empirical values or field pumping tests; a weight matrix is built based on the frangibility evaluation indexes, and objective weighted value of each frangibility evaluation index in the weight matrix is obtained respectively; independent evaluation result of each frangibility evaluation index in the weight matrix is obtain respectively; and an underground water frangibility evaluation map is obtained according to the objective weighted values and the independent evaluation results. The method can be used in underground water frangibility evaluation system.

Description

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Claims

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Application Information

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Owner CHINESE ACADEMY FOR ENVIRONMENTAL PLANNING
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