Combined dynamic triaxial dynamic single shear pressure chamber system capable of measuring radial strain of soil samples

A radial strain and dynamic three-axis technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problem of lack of test samples, the inability of stacked rings to maintain a constant cross-sectional area, and the difficulty of accurately calculating the stress of cylindrical samples Problems such as distribution and stress path, to achieve the effect of improving versatility and data accuracy

Active Publication Date: 2017-08-01
DALIAN UNIV OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when a cylindrical specimen is in a "sheared" state, the stacking ring cannot maintain a constant cross-sectional area
Due to the lack of a device to measure the radial strain of the test specimen, it is difficult to accurately calculate the stress distribution and stress path of the cylindrical specimen under the combined dynamic triaxial dynamic single shear load after the test

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
  • Combined dynamic triaxial dynamic single shear pressure chamber system capable of measuring radial strain of soil samples
  • Combined dynamic triaxial dynamic single shear pressure chamber system capable of measuring radial strain of soil samples

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] A combined dynamic triaxial dynamic single shear pressure chamber system that can measure radial strain of soil samples, mainly including axial loading system, horizontal loading system, radial strain gauge, water pressure chamber and water pressure adjustment control panel; water pressure The regulating control board is used to regulate the confining pressure of the water pressure chamber.

[0027] The sample cover 6 is a metal cover with two upper and lower samples 8 placed in the middle and a drainage system 9; the side wall of the sample 8 is wrapped with a rubber film, and the top and bottom are covered with permeable stones and filter paper; the sample rubber film and The sample cover 6 is sealed with an O-ring; the lower bottom surface of the sample cover 6 is placed on the base 11 of the water pressure chamber through a...

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 combined dynamic triaxial dynamic simple shear pressure chamber system capable of measuring radial strain of a soil sample, and belongs to the geotechnical engineering test device technical field. The sample (8) is mounted in a water pressure chamber through sample cover bodies (6) having a drainage function; an axial loading system comprising an axial servo electrical controller (20), an axial piston rod (21), an axial pressure sensor (19) and an axial displacement sensor (2) applies an axial pressure on the top of the sample (8); a horizontal loading system comprising a horizontal servo electrical controller (17), a horizontal piston rod (13), a horizontal pressure sensor (15) and a horizontal displacement sensor (14) applies a horizontal shearing force on the bottom of the sample (8). On the basis of a conventional combined dynamic triaxial dynamic simple shear apparatus, the radial strain of the soil sample under action of the axial and horizontal load is measured simultaneously. Universality of the combined dynamic triaxial dynamic simple shear apparatus is improved, and measured data is accurate.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering testing equipment, and relates to a combined dynamic three-axis dynamic single-shear pressure chamber system capable of measuring radial strain of soil samples, including an axial loading system, a horizontal loading system, and a radial strain instrument and pressure chamber. Background technique [0002] The strength and deformation of soil is one of the important foundations of soil mechanics research. There are many kinds of experimental instruments and equipment for measuring the shear deformation strength of soil, including direct shear instrument, simple shear instrument, triaxial instrument, torsional shear instrument, plane strain instrument and true triaxial instrument. The traditional rock and soil simple shear instrument uses the method of combining multi-layered rings to apply confining pressure, and the soil sample is restrained by multi-layered rings to ensure that...

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): G01N3/02
Inventor 赵红华康馨于绅坤郑啸男
Owner DALIAN UNIV OF TECH
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