AUTOTRIAX

Product Code: AUTOTRIAX

AUTOTRIAX SYSTEM DESCRIPTION
The system consists essentially of the following components:

Triaxial compression frame
A suitable machine is our model 28-WF4005 or 28-WF4010, 50 or 100 kN cap.

Triaxial Cell with vacuum top cap
A suitable models are our Tri-Cell Plus 28-WF4070/P to 28-WF4150/P equipped with vacuum top cap.

Control Unit
The RTC, Real time control box, 29-WF4530 with 29-WF4537 expansions modules, are the brain of the AUTOTRIAX. Provide the automatic control and drive of up to three triaxial systems.

Data acquisition unit
The ATD, Automatic Triaxial Datalog, 29-WF4616 and 29-WF4616/UP1 Expansion, provides the automatic data acquisiton and broadcasts all transducers measurements on the high speed comunications network to the RTC Real Time Control box

Test Softwares
These softwares are the interface between the operator and the AUTOTRIAX System to manage automatically all test stages.
Various Software packages are available depending on the test to be performed:
29-WF4616/S1 to 29-4616/S6.

Pressure Systems
Two models available depending on the maximum pressure to be applied:

Hydromatic servo-controlled hydraulic actuator 29-WF4502 for pressures up to 3500 kPa
Servoflow electro-pneumatic servo-valve 29-WF4511 and 29-WF4512 expansion, for pressures up to 1000 kPa

The Close/Open Microelectrovalves 29-WF4515 are accessories for the pressurelines.

See RTC, ATD, Hydromatic, Volume Change Transducer and Trithech for more details.

AUTOGEOLAB SOFTWARE MODULES FOR THE AUTOMATIC TRIAXIAL SYSTEM

Introduction
These software modules are used in conjunction with the RTC chassis, RTC modules and ATD all connected using the high speed communications and control network. They allow the full automation of triaxial tests including effective stress and stress path testing using different testing standards such as BS1377, ASTM and EN. From the start to the end of the triaxial test the software modules have total control of the triaxial frame, the adjustment of pressure to the triaxial cell, the opening and closing of pressure lines to the triaxial cell, and the measurement of continuous volume change to perform automatically the different stages required.
The software modules have an export function to automatically transfer test data into a spreadsheet template.
The software modules come with a standard processing spreadsheet template which can be fully customised.

The following software testing modules are available:

29-WF4616/S1 : Effective Stress software to BS 1377:8
Automatically performs the test depending on reference standard: BS 1377:8

Saturation with full automatic control
Isotropic consolidation stage with volume change measurement
Consolidated undrained triaxial compression with measurement of pore pressure
Consolidated drained triaxial compression with mea5urement of volume change
Non standard shearing of the specimen in extension (undrained or drained)
Export test data to a spreadsheet template for processing and plotting

29-WF4616/S2 : Stress Path software
Automatically performs the different stages of a stress path triaxial test.

Saturation stage
- automatic or manual
Consolidation stage:
- Isotropic
- An isotropic
- k₀with axial or radial stress control (k₀ control can use either radial belt measured sample volume change methods)
User defined target stress parameters (p, q, s and t)
Monotonic shear stage in compression or extension
Export test data to a spreadsheet template for processing and plotting

29-WF4616/S4 : Effective Stress software to ASTM D4764
Automatically performs the test depending on reference standard: ASTM D4764

Saturation with full automatic control
Isotropic consolidation stage with volume change measurement
Consolidated undrained triaxial compression with measurement of pore pressure
Consolidated drained triaxial compression with measurement of volume change
Non standard shearing of the specimen in extension (undrained or drained)
Export test data to a spreadsheet template for processing and plotting
Multi stage test

29-WF4616/S5 : Unsaturated soil triaxial test software
Automatically performs the test stages using the axis traslation method:

Simultaneous and independent control of air pressure, pore water pressure and axial stress
Performance of various test stages: saturation, consolidation and shear
Test data recordoing of each stage

29-WF4616/S6 : Permeability triaxial test software to BS 1377:6
Automatically performs permeability test in triaxial cell conforming BS 1377:6, part 6.3:

Automatic control of saturation stage
Isotropic consolidation stage with pore pressure and volume change measurements
Automatic procedure to generate hydraulic gradient through the sample and constant head water flow
Export test data to a spreadsheet template for processing and plotting.

AUTOTRIAX

AUTOTRIAX

FEATURES