Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Device for quickly determining permeability coefficient of coarse-grained soil and determination method

A technology for rapid determination of permeability coefficient, applied in measurement devices, permeability/surface area analysis, suspension and porous material analysis, etc. The method, the test operation is simple, and the effect of the test operation is simple

Inactive Publication Date: 2015-04-29
SOUTHWEST JIAOTONG UNIV
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it has the following problems: it needs a special penetration meter, and the test is inconvenient
Due to the small pore size of the two piezometer tubes on the side wall, the seepage water infiltrates into the piezometer tube slowly, and it takes a long time for the water level of the two piezometer tubes to rise to the stable water point of equilibrium, resulting in a long test time
It cannot meet the requirements of simple and rapid determination of the permeability coefficient of coarse-grained soil on the field engineering site

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
  • Device for quickly determining permeability coefficient of coarse-grained soil and determination method
  • Device for quickly determining permeability coefficient of coarse-grained soil and determination method
  • Device for quickly determining permeability coefficient of coarse-grained soil and determination method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] figure 1 Shown, a kind of specific embodiment of the present invention is, a kind of device of measuring the permeability coefficient of coarse-grained soil rapidly, and its composition is: the soil sample tube 1 of cylindrical shape and without bottom and cover, and soil sample tube 1 is placed in the circle On the shape permeable plate 2, the circular permeable plate 2 is placed in the water collection container 4 through the support frame 3.

[0043] Use the device for quickly measuring the permeability coefficient of coarse-grained soil of this example, the method for measuring the permeability coefficient of coarse-grained soil, the steps are:

[0044] a. Test preparation

[0045] The coarse-grained soil is layered and saturated in the soil sample cylinder 1, and a saturated coarse-grained soil sample 5 to be measured is obtained in the soil sample cylinder 1; then the soil sample cylinder 1 is placed on the circular permeable plate 2, At the same time, the circu...

Embodiment 2

[0063] figure 1 Shown, a kind of specific embodiment of the present invention is, a kind of device of measuring the permeability coefficient of coarse-grained soil rapidly, and its composition is: the soil sample tube 1 of cylindrical shape and without bottom and cover, and soil sample tube 1 is placed in the circle On the shape permeable plate 2, the circular permeable plate 2 is placed in the water collection container 4 through the support frame 3.

[0064] The soil sample cylinder 1 in this example is placed on the circular permeable plate 2 in the following manner: the bottom of the soil sample cylinder 1 is fixedly connected to the circular permeable plate 2; the support frame 3 is fixedly connected to the circular permeable plate 2 tripod.

[0065] Use the device for quickly measuring the permeability coefficient of coarse-grained soil of this example, the method for measuring the permeability coefficient of coarse-grained soil, the steps are:

[0066] a. Test prepara...

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
osmotic coefficientaaaaaaaaaa
osmotic coefficientaaaaaaaaaa
osmotic coefficientaaaaaaaaaa
Login to View More

Abstract

The invention discloses a device for quickly determining a permeability coefficient of coarse-grained soil and a determination method. The device comprises a cylindrical soil sample cylinder (1) without a bottom or a cap, wherein the soil sample cylinder (1) is arranged on a circular porous plate; the circular porous plate (2) is arranged in a water collecting container (4) through a supporting frame (3). The device is easy to construct, can be used for quickly and conveniently determine the permeability coefficient of the coarse-grained soil, and is particularly suitable for a construction site.

Description

technical field [0001] The invention relates to a device and a method for measuring the permeability coefficient of coarse-grained soil, belonging to the technical field of soil engineering. Background technique [0002] When the pores in the soil are connected with each other, water-permeable channels can be formed. Although these channels are very irregular and often narrow, water can flow through the soil along these channels by gravity. The phenomenon of water flowing in soil pores is called water seepage; the property that soil can be permeated by water is called soil permeability or water permeability, which is one of the mechanical properties of soil. The soil permeability coefficient is a parameter to evaluate the soil permeability. The larger the soil permeability coefficient, the stronger the water permeability; otherwise, the weaker it is. [0003] The permeability coefficient of coarse-grained soil is about 10 -2 ~10 -4 cm / s is a kind of material with good wat...

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): G01N15/08
Inventor 罗强刘孟适梁多伟陈坚张良蒋良潍谢涛连继峰石晓旺薛猛
Owner SOUTHWEST JIAOTONG 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
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