Unlock instant, AI-driven research and patent intelligence for your innovation.

Novel saturated and unsaturated permeation triaxial apparatus

A triaxial instrument, a new type of technology, applied in instruments, scientific instruments, measuring devices, etc., can solve the problem of not being able to directly take out for non-saturated triaxial compression tests, and achieve the effect of continuity

Active Publication Date: 2017-06-23
LANZHOU UNIVERSITY
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It also solves the problem that loess and other poorly structured rocks and soils cannot be directly taken out for unsaturated triaxial compression tests after being saturated.

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
  • Novel saturated and unsaturated permeation triaxial apparatus
  • Novel saturated and unsaturated permeation triaxial apparatus
  • Novel saturated and unsaturated permeation triaxial apparatus

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0038] 1. Install the sample: Be sure to exhaust the triaxial instrument before loading the sample, carefully place the pre-cut triaxial sample on the base 6 of the triaxial instrument, and finally seal the rubber film with the support film cylinder and the sealing ring. Put it on the outside of the sample, and install the top cap 4 of the sample. On this basis, install the pressure inner chamber of the sample. After installing the pressure inner chamber, be sure to check the tightness of the bottom of the pressure inner chamber, and then inject degassed distilled water into the inner pressure chamber and the standard measuring tube, and finally fill the outer Perform exhaust operation at the differential pressure sensor, and install the pressure outer chamber after completion.

[0039] 2. Saturation of the sample: saturate the installed sample by methods such as pumping saturation, carbon dioxide saturation, water head saturation and back pressure saturation. follow-up test....

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 novel saturated and unsaturated permeation triaxial apparatus. The novel saturated and unsaturated permeation triaxial apparatus comprises a pressure chamber, wherein the upper end and the lower end of the pressure chamber are respectively provided with a pressure chamber top plate and a pressure chamber bottom plate; a top cap is arranged in the pressure chamber; the top cap is provided with a loading rod; the pressure chamber bottom plate is provided with a base; a control device is arranged on the pressure chamber; the control device comprises an axial force sensor, a displacement sensor, a differential pressure sensor, a first pore water pressure sensor, a second pore water pressure sensor, a first volume / pressure controller, a second volume / pressure controller, a third volume / pressure controller, a pressure controller and a data collector; and the pressure chamber is divided into an inner pressure chamber and an outer pressure chamber. The novel saturated and unsaturated permeation triaxial apparatus provided by the invention is high in precision, and realizes saturated-unsaturated continuity in a triaxial test.

Description

technical field [0001] The invention relates to a novel saturated and unsaturated seepage triaxial instrument, which belongs to the technical field of rock and soil mass measurement. Background technique [0002] The triaxial instrument is one of the important technical means to test the mechanical properties of rock and soil. The triaxial instrument commonly used in geotechnical engineering includes conventional triaxial instrument, true triaxial instrument, stress path triaxial instrument, hollow torsion triaxial instrument, high pressure Large triaxial instrument and unsaturated soil triaxial instrument, etc. The improvement of the existing triaxial instrument has been explored by many scholars. Depending on the project profile, each type of triaxial has its own unique advantages for use. Saturation, consolidation and shear are three very important processes in a triaxial test. Conventional triaxial tests can test the mechanical properties of rock and soil in the satur...

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): G01N3/24G01N3/08G01N3/02
CPCG01N3/02G01N3/08G01N3/24G01N2203/0003G01N2203/0019G01N2203/0025G01N2203/0256G01N2203/0676G01N2203/0682
Inventor 谌文武刘伟孙冠平杨芳
Owner LANZHOU UNIVERSITY