Permeation measuring device and method for layered sand migration process under different osmotic gradients

A technology of migration process and seepage gradient, which is applied in the field of geotechnical seepage mechanics, can solve the problems that sampling cannot be realized, and the influence of particle migration and sand structure permeability changes can not be studied, so as to achieve easy seepage parameters, low cost and high application wide range of effects

Pending Publication Date: 2019-07-05
CENT SOUTH UNIV +2
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional seepage device cannot realize the function of sampling after seepage, so it is impossible to study the influence of particle migration and sand structure on the change of seepage characteristics
[0004] Previously, there were no patents or lit

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
  • Permeation measuring device and method for layered sand migration process under different osmotic gradients
  • Permeation measuring device and method for layered sand migration process under different osmotic gradients
  • Permeation measuring device and method for layered sand migration process under different osmotic gradients

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as Figure 1 to Figure 6 As shown, the permeation measurement device described in this embodiment for measuring the migration process of layered sand under different permeability gradients is mainly composed of a water supply system, a sample permeation chamber, a water head measurement system and a flow measurement system.

[0045] The water supply system is attached figure 2 As shown, it mainly includes a water pump 1, a water supply valve 2, a water pipe 3, a flow control valve 4, a water storage tank 5, and a safety pressure relief valve 6; the sample permeation chamber is as attached image 3 As shown, it mainly includes an acrylic cover plate 7, an O-shaped sealing ring 8, a permeable stone 9, a 500-mesh filter screen 10, a bolt 11, and a plexiglass tube 12; the head measurement system is as attached Figure 4 As shown, it mainly includes a PVC hose 13, a bellows water pressure gauge 14, and a quick-plug connector 15; the flow measurement system is as attac...

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 permeation measuring device and method for layered sand migration process under different osmotic gradients. The main structure of the device comprises a water supply system,a sample permeation chamber, a water head measuring system and a flow measuring system, wherein the water supply system mainly comprises a water pump, a water supply valve, a water pipe, a flow control valve, a water storage tank and a safety relief valve, wherein the sample permeation chamber mainly comprises an acrylic cover plate, an O-type seal ring, a permeable stone, a 500-mesh filter, a bolt and an organic glass tube; the water head measuring system mainly comprises a PVC hose, a bellows water pressure gauge and a quick-connect fitting; and the flow measuring system mainly comprises anautomatic exhaust valve, a support grid, an atmospheric pressure water storage tank, a water pipe, a water stop valve and a rotameter. The device provided by the invention can simulate the sand seepage test under different conditions, and can meet the requirements of the experimental research on the piping, osmotic deformation and osmotic failure as well as the sand seepage test in other geotechnical engineering at the same time, which is particularly suitable for seepage test of layered sand samples under the gradient changed water pressure condition.

Description

technical field [0001] The invention belongs to the field of rock-soil seepage mechanics, and in particular relates to a seepage measuring device and method for measuring the migration process of layered sand under different seepage gradients. Background technique [0002] The permeability of sand is one of the important technical indicators in the field of civil engineering and geotechnical engineering, and it is generally expressed by the permeability coefficient. After obtaining the permeability coefficient of a certain sandy soil, it has a guiding effect on the study of the seepage deformation and seepage damage of the sandy soil. Due to the influence of many factors, the current seepage test research still has the following problems: [0003] Most of the existing sand permeability coefficient measurement devices adopt an integrated sample loading method, and most of them can only be used to measure the permeability coefficient of a certain sand under a certain water he...

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): G01N15/08
CPCG01N15/08
Inventor 董涛曹平张向阳曹日红桂荣蒲成志孟京京王飞林奇斌刘智振刘涛影郭伟韬万杰周罕雍伟勋
Owner CENT SOUTH UNIV
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