Method for testing soil resistivity under artificial environment

An artificial environment and resistivity technology, applied in the field of soil resistivity testing, can solve the problems of poor accuracy of soil resistivity testing, and achieve the effect of improving electrical conductivity

Pending Publication Date: 2018-09-28
青海省气象灾害防御技术中心
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, an embodiment of the present invention provides a method for testing soil resistivity in an artificial environment, the main purpose of which is to solve the problem of poor accuracy in testing soil resistivity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Select an area with good soil resistivity in the field, test the resistivity of the soil with a conventional test method (Wenner quadrupole method), and record the value; measure the soil temperature at the surface and at a depth of 30cm at the same time, and take an appropriate amount of sample sealing tape Return to the laboratory to obtain the relative humidity value of the soil; conduct three repetitions of resistivity, soil temperature and humidity, and take the average value;

[0027] (2) Measure the compactness data of the soil at the tested place with a soil compactness meter, repeat 3 times, and get the average value;

[0028] (3) Take 0.5m at the place to be tested 3 Take the soil back to the laboratory and spread it out in a cool place to air dry for later use;

[0029] (4) Detect debris such as stones with a diameter greater than 3cm in the air-dried soil, and weigh the weight of the soil;

[0030] (5) Put the accurately weighed soil into a special mol...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for testing soil resistivity under artificial environment. The method comprises the following steps: selecting to-be-measured field soil, measuring resistivity, tween,a relative humidity value and compactness; performing air drying on the to-be-measured soil, sieving stone and a foreign material to obtain the pure soil, and measuring the weight; filling a die withthe pure soil according to the thickness of a preset layer and compacting the pure soil; testing the soil resistivity of the soil in the die; according to the highest temperature, lowest temperatureand frozen soil temperature of a to-be-measured area in previous years, respectively determining the soil after air drying according to a preset step decrease temperature, and a current value and a magnitude voltage of the water-containing soil, and calculating the soil resistivity under condition of an input voltage being 1-5 V and an input current being 0.5-5 mA according to Rho being 4*U/I formula; sieving the residual soil sample which is not in the die through a 20-mesh sieve, testing a pH value, and performing analysis on the water-soluble salinity ion content. a soil conductive factor is comprehensively analyzed, a main factor influencing the soil resistivity is found, and the reliable data can be provided for improving the conductivity and reducing the soil resistivity.

Description

technical field [0001] The invention relates to the technical field of environmental detection, in particular to a method for testing soil resistivity in an artificial environment. Background technique [0002] The resistivity of soil is a comprehensive characterization of soil conductivity, and it is an important parameter for studying the physical and mechanical properties, microstructure, metal soil corrosion, electric grounding, lightning protection and anti-static grounding of soil. Usually Wenner equidistant quadrupole method or [0003] The Schlumberger-Palmer quadrupole method with unequal spacing measures the apparent resistivity in situ, and then obtains the layered structure of soil resistivity through soil inversion. Take the demand for soil resistivity values ​​for power grounding and lightning protection and anti-static grounding as an example. Since Wenner's four-electrode method (Wenner's four-electrode method) field test operation is simple, this method is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/04
CPCG01N27/041
Inventor 张志春王玉娟王军金欣刘晓燕欧建芳黄志凤罗少辉胡亚男王英建张继红蔡忠周王秀英黎峰辛元尧赵超君龚梅竹许文奕王敏孙超
Owner 青海省气象灾害防御技术中心
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap