Test method for dynamic electrical resistance characteristics of horizontally stratified soil considering different temperatures
A dynamic resistance and characteristic test technology, which is applied to the analysis of materials, material analysis through electromagnetic means, instruments, etc., can solve the problems of inability to accurately simulate the dynamic resistance characteristics of soil, so as to improve the accuracy of the test, facilitate the operation, and improve the accuracy. sexual effect
Active Publication Date: 2019-07-12
SOUTHWEST JIAOTONG UNIV
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
For impact current, the current domestic research on soil dynamic resistance characteristics mainly uses computer simulation to simulate the process of soil dynamic resistance characteristics, but computer simulation cannot accurately simulate the influence of soil pH on soil dynamic resistance characteristics.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0039] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. The specific implementation method of the horizontal layered soil dynamic resistance characteristic test method considering different temperatures includes the following steps:
[0040] Step 1: Build a test platform for the dynamic resistance characteristics of horizontally stratified soil taking into account temperature
[0041] Such as figure 1 and figure 2 , the test platform of the present invention comprises: a soil test box (06), the inner wall of the soil test box (06) is provided with a temperature control device (08), and the left side wall of the soil test box (06) is provided with a left copper electrode (05), The right side wall of the soil test box (06) is also provided with a right copper electrode (07), and the left copper electrode (05) and the right copper electrode (07) are both vertical disks and are respectively close to...
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
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| electrical resistivity | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a test method for dynamic resistance characteristics of horizontal layering soil under different temperatures. A test platform for dynamic resistance characteristics of horizontal layering soil is constructed according to the test method; the test platform is used for stably controlling the temperature of a soil sample according to test requirements; a soil impact experiment is carried out and voltage and current signals of the soil sample are measured under a stable test temperature; an upper computer is used for acquiring a full time domain soil resistance curve according to the collected voltage and current signals and evaluating the dynamic resistance characteristics of soil on the basis of a preset temperature value; different temperatures of the soil sample are controlled by the platform and the tests for the dynamic resistance characteristics of horizontal layering soil under different temperatures are carried out. According to the test method provided by the invention, the working condition of horizontal layering soil around an earthing system can be effectively simulated, the accurate control on temperature is realized, the test accuracy is increased, the accurate evaluation for the dynamic resistance characteristics of horizontal layering soil is realized and the catalysis for the relevance of temperature and dynamic resistance characteristicsof soil is benefited.
Description
technical field [0001] The invention belongs to the technical field of electric power system grounding, in particular to a method for testing the dynamic resistance characteristics of horizontally layered soil in consideration of different temperatures. Background technique [0002] When the transmission line tower is struck by lightning, due to the existence of the grounding resistance of the tower, a high potential will be generated on the tower body. Excessively high potential will cause the tower to counterattack the transmission line, which will cause accidents such as tripping of the transmission line and reduce the stability of the power system. sex and reliability. The main function of the transmission line tower grounding device is to effectively discharge the lightning current into the ground when the tower top or the lightning protection line is struck by lightning, so the current flowing through the grounding device is mainly the lightning impulse current. Due t...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/04
CPCG01N27/043
Inventor 周利军刘彬王路伽古维富梅诚
Owner SOUTHWEST JIAOTONG UNIV