Calculation method for quickly determining phreatic water level fluctuation characteristics

A technology of fluctuation characteristics and calculation methods, which is applied in the directions of engine lubrication, engine components, complex mathematical operations, etc., and can solve problems such as rapid determination of the amplitude of fluctuations

Active Publication Date: 2020-04-10
SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] At present, the actual measurement of the phreatic level is mainly carried out by establishing a phreatic level monitoring well, but there is a lack of a method for quickly determining the period and amplitude of the phreatic level fluctuation

Method used

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  • Calculation method for quickly determining phreatic water level fluctuation characteristics
  • Calculation method for quickly determining phreatic water level fluctuation characteristics
  • Calculation method for quickly determining phreatic water level fluctuation characteristics

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Embodiment

[0021] Example: such as figure 1 , 2 , 3, the present embodiment specifically relates to a calculation method for quickly determining the fluctuation characteristics of the phreatic level, and the calculation method includes the following steps:

[0022] (1) Determine the target analysis area for the fluctuation characteristics of the water level, and the target analysis area is specifically a polluted site.

[0023] (2) Collect rainfall data and measured data of water level monitoring wells in the administrative area where the target analysis area is located. The above data requires at least one hydrological year of data, and the administrative area can be township / town, district / county; among them , the rainfall data is the rainfall; the measured data of the phreatic level monitoring well is the burial depth or elevation of the phreatic water level.

[0024] (3) Daily average the rainfall data collected in step (2) according to a hydrological year to obtain the daily avera...

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Abstract

The invention discloses a calculation method for quickly determining phreatic water level fluctuation characteristics. The calculation method comprises the following steps: determining a target analysis area of phreatic water level fluctuation characteristics; collecting rainfall data and phreatic water level monitoring well actual measurement data in an administrative region where the target analysis region is located; constructing a coordinate system; drawing a point diagram on a coordinate system according to the collected sum; carrying out linear correlation analysis on the drawn point graph to obtain a linear correlation linear equation; calculating a correlation coefficient R of the linear correlation linear equation to verify whether the linear correlation linear equation is established or not; and determining the submersible water level burial depth or elevation of the target analysis area by utilizing the linear correlation linear equation and the rainfall data of the target analysis area so as to analyze the submersible water level fluctuation characteristics of the target analysis area. The method has the advantages that the fluctuation characteristics of the phreatic water level can be quickly determined, and a basis is provided for evaluating migration of pollutants in underground water and investigating the environment of a polluted site.

Description

technical field [0001] The invention belongs to the field of environmental geotechnical engineering, in particular to a calculation method for quickly determining the fluctuation characteristics of a water level. Background technique [0002] After decades of industrial and agricultural development, my country's soil and groundwater have been seriously polluted. Since the vast majority of pollution occurs through the surface or shallow surface, the pollutants gradually migrate downward. Therefore, for soil and groundwater, the degree of pollution also shows that the shallow part is seriously polluted. , the degree of pollution gradually decreased. In this way, pollutants first enter the dive to contaminate the groundwater. In recent years, the water quality of my country's groundwater has been seriously polluted, and the proportion of poor and very poor water quality has reached more than 70%. The situation is not optimistic. [0003] Since the phreatic level is a free wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/11G01F23/00
CPCG06F17/11G01F23/80Y02A10/40
Inventor 许丽萍李韬张国伟沈婷婷郭星宇王蓉李梅吴育林
Owner SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
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