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

Subsurface erosion visualization test device and method, and transparent soil preparation method

A test device and transparent soil technology, which is applied in the field of soil mechanics test, can solve the problem that the movement of fine particles in the soil cannot be observed, and achieve the effect of easy control of relative density, convenient operation and low cost

Pending Publication Date: 2021-06-08
HOHAI UNIV
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the PIV-based testing technology can only observe the movement trajectories of a limited number

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
  • Subsurface erosion visualization test device and method, and transparent soil preparation method
  • Subsurface erosion visualization test device and method, and transparent soil preparation method
  • Subsurface erosion visualization test device and method, and transparent soil preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0039] A latent corrosion visualization test device includes a permeation meter, a pressure applying device, a laser control system and an image acquisition system.

[0040] Such as figure 1 As shown, wherein the permeameter is provided with a transparent model box 30, which is a square barrel made of acrylic plate, with a light transmittance>92%; a full transparent soil sample 29 is placed inside it, and the transparent soil test sample Sample 29 is configured by fused silica sand particles and pore oil, wherein a fluorescent dye is added to the pore oil, and the fluorescent dye is Nile Red. Preferably, the size of the transparent soil sample 29 is 100 mm×100 mm×150 mm mm (length × width × height) and 200 mm × 200 mm...

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

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a subsurface erosion visualization test device and method, and a transparent soil preparation method. Fused quartz sand particles are used for replacing soil particles, oil with the same refractive index as the quartz sand particles is prepared for replacing water, and a fluorescent dye is added into the oil, so that a transparent soil sample is prepared; the transparent soil sample is irradiated by using a solid-state green laser based on a planar laser-induced fluorescence technology, oil emits bright fluorescence in a laser irradiation plane by using the fluorescent dye, and fused quartz sand particles appear in the form of black spots; and in the occurrence and development process of subsurface erosion, a high-speed camera is used for shooting laser pictures in real time, the visualization of mechanical behaviors such as fine particle migration and clogging in the transparent soil sample can be realized by analyzing the laser pictures at different positions of the sample under different hydraulic conditions, and meanwhile, the evolution process of the internal pore structure of the transparent soil sample can be obtained.

Description

technical field [0001] The invention belongs to the technical field of soil mechanics test, and in particular relates to a latent corrosion visualization test device, a test method and a preparation method of transparent soil. Background technique [0002] Latent erosion refers to the phenomenon that seepage carries the fine particles in the internal unstable soil to migrate in the pores formed by coarse particles, and gradually forms a part of the foundation that is hollowed out and partially filled. The wide-graded soils with relatively gentle tails of the grading curves and the soils lacking intermediate gradings belong to the internal unstable soils. The development of subsurface corrosion to a certain extent may cause uneven settlement of the foundation or damage the anti-seepage system of the dam, threatening the safety of the dam. The Tarbela Dam in Pakistan, the Bennett Dam in Canada, and a dam in Sichuan Province in my country have all caused serious accidents due ...

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
IPC IPC(8): G01N15/08G01N1/38G01N1/28G01N1/36
CPCG01N15/0826G01N15/08G01N15/0806G01N1/38G01N1/28G01N1/286G01N1/36G01N2015/0846
Inventor 罗玉龙王珂张兴杰谷敬云张海彬盛金昌詹美礼
Owner HOHAI UNIV
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