Xian Zealchon Electronic Technology Co., Ltd.
Xian Zealchon Electronic Technology Co., Ltd.
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ASTM Strain controlled soil triaxial press test apparatus for laboratory testing equipment
Purpose: The geotechnical stress and strain triaxial instrument can be used for stress and strain control loading methods in triaxial tests. This instrument is mainly used to determine the triaxial shear compression test of soil samples. According to different drainage conditions, it can be tested for unconsolidated undrained shear (UU), consolidated undrained shear (CU or) and consolidated drained shear (CD).
This instrument is also suitable for back pressure saturation samples, pore water pressure dissipation, unconfined compressive strength, multi-stage loading triaxial compression of one sample, multi-stage strain consolidation coefficient, KO triaxial shear, triaxial creep Variable, triaxial constant head, triaxial constant head shear, triaxial variable head permeation, triaxial variable head permeable shear, etc.
Instrument features:
1. Host features:
(1) This instrument does not need to be equipped with an air compressor or other pressure source. The instrument is pressure-regulated by the sensor through the pressure regulating cylinder on the measurement and control cabinet, and the water is circulated, and the pressure is stable.
(2) The instrument testing machine integrates the testing machine and the gearbox, with small size, light weight, low vibration and low noise, and is suitable for indoor or on-site use.
(3) The pressure chamber is sealed with a low-friction piston rod. Under pressure, the piston rod moves up and down almost without friction resistance, and the seal does not leak water.
2. Software specific:
(1) Record force-time, deformation-time, force-deformation and force-displacement test curves during the test, which can be switched and observed at any time, zoomed in and out at will, moved horizontally or vertically, real-time high-speed sampling;
(2) To test the mechanical properties of the material, enter the sample area parameters before the test, and automatically calculate the shear strain and shear stress at the end of the test (different test methods, the analyzed data will also be different), on the basis of automatic analysis Above, manually process the analysis data results to improve the accuracy of the analysis;
(3) The test data adopts a database management method, which automatically saves the shear force and shear deformation test data and curves;
(4) Users can edit reports in any format according to their needs, export them and print them out;
(5) A variety of control methods, of which single-step program control includes multiple closed-loop control methods such as constant velocity stress, constant velocity strain, constant velocity displacement, displacement retention and force retention, and multi-step program control includes tensile testing. Fourth, the working principle of the triaxial instrument
(1) During the triaxial test, wrap the prepared sample with a rubber mold and place it in a pressure chamber, and then apply a certain ambient pressure and back pressure (as required) to the soil sample. Increase at a certain rate until the soil sample is broken. In the sample, a force sensor measures the axial force applied to the soil sample.
(2) The surrounding pressure and back pressure applied to the soil sample is based on water as the medium, the force value is set by the measurement and control cabinet, and the pressure of the electric pressure regulator is controlled by the sensor feedback.
(3) The pore water pressure is tracked and measured by a piezoresistive sensor, and automatically digitally displayed on the panel of the measurement and control cabinet.
(4) The axial deformation of the soil sample after compression is measured by a motor encoder.
(5) In the test, the volume change of the soil sample is measured by the back pressure body tube (when back pressure is added) or the body variable tube to measure the amount of water discharged from the soil sample.
| parameters | Details |
| Voltage | 220V±5V 50Hz |
| power | 0.75kW |
| axial compressive force | 0-10KN 0-30KN 0-60KN 0-100KNoptional |
| axial deformation | 0-30mm±0.01mm |
| rate of shear | 0.001mm-10mm/min continuously viable |
| specimen size | ¢39.1mm ¢61.8mm ¢101mmConfining pressure cylinder Optional |
| pore pressure | 0-2MPa±1kPa,Can be modulated |
| Confining pressure back pressure | 0-2MPa±1kPa, volume change0-100ml±0.1ml |
| work environment | 10ºC-40ºC,Relative humidity is less than 85%,Performance guarantee 0ºC-45ºC,Relative humidity is less than 85%,Performance guarantee |
Xi 'an Zealchon electronic technology co., LTD, located in new technology industry development zone in Xi'an, an ancient city in China. It covers an area of 7500 square meters of building area. Zealchen specialize in civil engineering research and experimental apparatus; another is the semiconductor laser research and development.On one hand, currently based on civil experimental instrument research, the research team is founded by the personnel who come from Chang 'an university, Xi 'an polytechnic university, Xi 'an petroleum university, which has the top technology in this expertise. In addition, its research and development has accomplished a series of leading domestic and international standards, first-class technology of asphalt and asphalt mixture, road, bridge deck, geotechnical, structural testing instruments, even more, some of the products fill the blank of similar equipment at home and abroad, won national, ministerial, provincial awards.