Field standardization analysis method for groundwater leakage channel reconnaissance

An analysis method and groundwater technology, applied to reservoir seepage or water gushing problems in underground engineering, survey and evaluation of groundwater seepage fields, engineering fields involving groundwater seepage, can solve multi-information, data cannot be fully utilized, and different Large differences in field index values, etc., to achieve the effect of reducing interference information

Active Publication Date: 2017-10-20
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD +1
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Problems solved by technology

This process of data processing, analysis and judgment fails to fully reflect the time and space change information of a single indicator, and more information will be missed, and the data cannot be fully utilized; the judgment of...

Method used

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  • Field standardization analysis method for groundwater leakage channel reconnaissance
  • Field standardization analysis method for groundwater leakage channel reconnaissance
  • Field standardization analysis method for groundwater leakage channel reconnaissance

Examples

Experimental program
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Embodiment 1

[0102] Taking the research on reservoir leakage of a hydropower station as an example, holes were drilled in the anti-seepage line corridor, and the temperature field data of each borehole of the anti-seepage line were measured in summer. The water temperature of the boreholes was measured at a distance of 1m, and the temperature of the reservoir water was obviously high. Compared with the natural groundwater temperature, it has good traceability, and the seepage water has obvious difference with the background value. Drill hole ZK43 was selected for data standardization processing according to this method. The elevation of the hole 43 is 1067.51m, and the hole depth is 198m.

[0103] For the tracer indicators, due to the small reservoir capacity, the difference between different locations in the reservoir is small, and the temperature of the reservoir water seepage source is the average value of the measured reservoir temperature on that day, that is, R is 20.2°C. According t...

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Abstract

The invention discloses a field standardization analysis method for groundwater leakage channel reconnaissance. The method is characterized by normalizing and standardizing the index of a single field according to a relation between the index and a leakage source, a relation between the index and a geological medium natural field background value, index variation of adjacent spaces, and index changes at different time to obtain the tracing index characteristic value, the background index characteristic value, the gradient index characteristic value and the timing index characteristic value of the single field index; according to data reliability and correlation with leakage, selecting different weights to superpose the respective characteristic values to obtain a unified field composite index characteristic value so as to achieve quantitative judgment, to make full use of limited data, to reduce interference information, to amplify leakage signals, and to locate leakage channels. The method processes the field analysis data and analyzes the possible groundwater leakage location information prominently.

Description

technical field [0001] The invention belongs to the technical field of geology and geotechnical engineering, and is mainly applied to water conservancy and hydropower projects involving groundwater seepage. The invention relates to the investigation and evaluation of groundwater seepage field, especially the problem of reservoir seepage or water gushing of underground engineering. Background technique [0002] Field refers to the distribution of objects in space, and is a special form of matter represented by a spatial position function. The groundwater-related variable information has experienced special geological effects in a certain period of time in the geological medium space. The characteristic parameters and changes of groundwater seepage, temperature, electrical conductivity, chemical composition, and isotope reflect certain characteristics and laws that exist objectively in the groundwater system. Field analysis It is one of the commonly used methods to study grou...

Claims

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Application Information

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IPC IPC(8): G01V9/00
CPCG01V9/00
Inventor 郑克勋余波郭维祥赵文明吴镇马聪
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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