Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Method of Calculating Soil Constitutive Value Using Graphical Parameters

A technology of parameter calculation and soil, applied in scientific instruments, material analysis using wave/particle radiation, instruments, etc., can solve the problems of time-consuming and complicated test process, achieve short time-consuming, low cost, and improve work efficiency Effect

Active Publication Date: 2021-06-22
XIAN CENT OF GEOLOGICAL SURVEY CGS
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The whole testing process is complicated and time-consuming

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Method of Calculating Soil Constitutive Value Using Graphical Parameters
  • A Method of Calculating Soil Constitutive Value Using Graphical Parameters
  • A Method of Calculating Soil Constitutive Value Using Graphical Parameters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1: A method for calculating the soil texture value by using imaging parameters. Select a soil sample taken from the loess section of Liangjia Village, Jiexiu City, Shanxi Province. The sampling depth is 4.5m, the sample size is 5×5×5cm, and the number is No. 1# soil sample. The steps are as follows;

[0043] (1) For the undisturbed soil of No. 1 soil sample, the density test was carried out according to the "Standards for Soil Engineering Test Methods" (GB / T 50123-1999), and the dry density index ρ was obtained by using the ring knife method d =1.45g / cm 3 .

[0044] (2) For the undisturbed soil of No. 1 soil sample, the limit water content test was carried out according to the "Standard for Soil Test Methods" (GB / T 50123-1999), and the liquid-plastic limit combined determination method was used to obtain the liquid index I l =-0.24;

[0045] (3) Use directly

[0046] (4) Use directly

[0047] (5) Use directly

[0048] (6) The undisturbed soil sample...

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 calculating the soil texture value by using imaging parameters, which relates to the technical fields of soil mechanics and image statistics. First, do density and limit water content tests on the undisturbed soil, and measure the dry density and liquidity index of the soil sample; then carry out 3D CT scanning and 3D image reconstruction of the soil, and slice the image, and use the sliced ​​image for analysis. Convert the physical property parameters into image parameters; then make a fitting curve between the structure index and the comprehensive physical property feature quantity to obtain the relational expression; replace the physical property parameters with the converted image parameters, and finally realize the calculation of the structure with the image parameters value method. The invention utilizes the image parameters of pores to obtain the index of deconstruction degree, avoids tedious and time-consuming strength tests on undisturbed soil, remodeled soil, and saturated soil one by one, and combines simple and mature density and limit water content tests with new technology 3D CT scanning Therefore, only the undisturbed soil needs to be tested directly, which greatly improves the working efficiency.

Description

technical field [0001] The invention relates to the technical field of soil mechanics and image statistics, in particular to a method for calculating soil texture values ​​by using image parameters. Background technique [0002] Soil structure is a physical index to measure the strength of soil structure. It is used together with soil particle size, density, and humidity indicators to reveal the basic physical properties of soil. It is also a hot spot in soil mechanics research in recent years. The study of soil structure It is "the core issue of soil mechanics in the 21st century". [0003] The definition of soil structure is m u =q 0 2 / q s ·q r , where q 0 ,q s and q r are the strengths of the undisturbed soil sample, saturated soil sample and reshaped soil sample respectively, to obtain the texture value m of a certain soil u , the three different strength values ​​shall be tested separately by means of experiments. Initially, Luo Yasheng, Shao Shengjun and oth...

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 Patents(China)
IPC IPC(8): G01N23/046
CPCG01N23/046
Inventor 唐亚明毕银强薛强李政国
Owner XIAN CENT OF GEOLOGICAL SURVEY CGS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com