Cyclic Triaxial Testing System-Columnless Electromechanical
Cyclic Triaxial Testing System-Columnless Electromechanical
Cyclic Triaxial Testing System-Columnless Electromechanical
Cyclic Triaxial Testing System-Columnless Electromechanical
Cyclic Triaxial Testing System-Columnless Electromechanical
Cyclic Triaxial Testing System-Columnless Electromechanical
- Description:
Cyclic Triaxial Testing System-Columnless Electromechanical
- Model:
Columnless Electromechanical
- Manufacturer:
APS-WILLE Geotechnik
Product Information
  • Description
  • Standard
  • Feature
  • Specification
  • Software
  • Upgrade Option
Description

土动三轴仪

APS (Wille Geotechnik®) has been successfully manufacturing and providing variety range ofelectromechanical loading systems for cyclic geotechnical applications for many years in differentranges.This machine gives a lot of flexibilities to the users to run advanced cyclic tests with high taccuracy and add different upgrading module to system to reach the required testing applications.Our system comes with a powerful dynamic controller up to 10KHz and this makes a unique featurefor our machines in dynamic testing field. A unique and flexible software along with components bring you different possibilities to use the device and run your test in a better way.


The column less loading system applies the static and cyclic loads from bottom of Triaxial cell. The top of cell is free operating space to facilitate installation of sample or local strain measuring devices.

The Triaxial cell is connected to a lifting mechanism which lift the cell wall up and gives easy way to operator to handle the cell. The load piston has the possibility to compensate cell pressure changes effected by the volume change of the piston inside the triaxial cell during cyclic and static tests.It gives an accurate control of defined phasecontrol between axial and confining pressure.


The high-quality electromechanical actuator in combination with operating software is able to generate and apply different types of loading waveform can be given to the sample e.g.Sinusoidal, Square, Triangular, Rectangle, Ramp signal and user defined waveform. GEOsys software in combination with other components and this loading frame performs all your triaxial tests automatically and withou toperator assistance during the test period.

土动三轴仪

System Geography

① Electromechanical Load Frame

② Triaxial Cell with compensated ram

③ Local transducers

④ Cell wall Lifting mechanism

⑤ Automatic Volume Pressure controllers (VPC) for Cell Pressures

⑥ Automatic Volume Pressure controllers (VPC) for back Pressures

⑦ Dynamic Controller

⑧ Software enables all kinds of static and cyclic Triaxial Tests


Column Free Cyclic Electromechanical Load Frame

This loading system is specially designed and configured for cyclic Triaxial tests and use compensated ram technology. The system includes a special load pistol construction to compensate cell-pressure changes affected by the volume change of the movement of piston in and out of the triaxial cell.

Static and dynamic load applies from the bottom of triaxial cell. At top of cell there is a free operating space to facilitate installation of sample, or force measuring device or etc. It can be used for all requirements of seismic research, and all kinds of stress and strain path tests.

The powerful multifunctional GEOsys Software supports all the test procedures with a well access to all testing sessions. The control panel is used to control the axial load, which consists of the Main switch,Emergency stop switch, Start button.

土动三轴仪

Soil Triaxial Cell

This series of Stress path Triaxial cells designed for advanced static and dynamic soil testing to test cylindrical soil specimens with diameters from 38mm up to 150 mm, a length/diameter ratio of at least 2under triaxial conditions. The cells cover variety range of tests which is required in the geotechnical labs.

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High Pressure Triaxial Cell

This is an advanced high-pressure/high temperature triaxial cell designed to test cylindrical specimens with diameters of up to 102mm, a length/diameter ratio of at least 2 under triaxial high pressure/temperature conditions up to 50MPa.

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Static Cell And Back Pressure System

The cell and back pressure can be generated and controlled automatically by different configurations depends on the testing applications, laboratory utilities and technical requirements in a variety range of pressure and for different applications With both below configuration which automatic and are controlled via PC, Tests such as Saturation, stress/strain path, permeability, K0 and other tests can be easily performed with accuracy and precision.


A) Air Pressure Controller (APC)

The standard configuration of this series includes of one-off Air pressure controller (APC) to generate air pressures (e.g. confining and pore pressure), two-off Air/Water Bladder which acts as an interface to exchange pneumatic pressure into hydraulic pressure and one -off automatic water volume measuring device to measure volume changes.

This system is fully automatic system and is controlled via PC and dedicated software.

Working pressure: 2 MPa    Pressure outlet:3 for inner cell, outer cell and backpressure


B) Volume Pressure Controller (VPC)

This method included of two Volume Pressure controllers for applying back pressure and Cell pressure. These are syringe pulse-less pumps which generate and regulate pressure and provide flow control  in a variety range for different testing requirements.

The control of the units is simply done via Touch-panel for stand-alone use or via PC and dedicated software. This making them very convenient and easy to operate.

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Digital Controller

Digital High-Speed High Resolution Expandable Real Time Control and data acquisition System 10KHz control and data acquisition and 24 bit resolution. The Dynamic controller is suitable for screw driven instruments(electromechanical) , hydraulic instruments with a valve driven with ±10 Volt and variety of sensors e.g. load cells, LVDTs, strain gauges, extensometers, thermocouples and etc.

The multi-functionality of the controller allows a modular design of the measurement and control parameters (sensors) via intelligent sensor plug, which store the calibration parameters, thus depending on the application can be used flexibly.


电机控制动三轴试验系统    电机控制动三轴试验系统

Main Features

• Up to 32 low-noise closed-loop control channels for static and dynamic tests

• up to 24-bit resolution channels for each test axis (e.g. force, displacement, pressure, strain)

• With digital controller parameterization and bumpless switching between all control functions

• Smooth changeover between all control functions

• Complete, simultaneous data transmission to avoid any data loss

• Digital adjustable controller parameters (P-I-D parameter)

• Simple and flexible test or setpoint parameter adjustment

• I/0 processing of externally connected

• Configuration and setup with PC software

Standard

• ASTM D-2850  

• ASTM D-2850-03a  

• ASTM D-3999-91  

• ASTM D-5084 

• ASTM D-5311  

• ASTM D-7181  

• ASTM D-7181-11  

• BS 1377-6  

• BS 1377-8  

• AASHTO T-292  

• AASHTO T-294 

• AASHTO T-307  

• AASHTO T-307-99  

• AASHTO TP-46 

• AS, JGS standards

Feature

• Static and cyclic loads apply from bottom ofsample

• Cyclic Loading system is designed for stress,strain or position-controlled tests

• Dynamic Electromechanical loading actuator including of displacement encoder

• Including Compensated ram technology

• Cyclic load up to 60kN

• Frequency up to 15H

• Suitable for samples from 38mm up to 300mm

• Software including different test modules e.g.Standard Static triaxial tests (CD, CU and UU),Stress path tests, dynamic tests and etc

• Different upgrading options e.g Unsaturated,cyclic cell pressure ,bender element, higher pressure cells and etc

• Easy installation of the sample by using Cell wall lifting mechanism

• Ethernet connection for fast data transferring to PC

• Different types of loading waveform can be given to the sample e.g. Sinusoidal, Square,Triangular, Rectangle and user defined waveform

• Direct operation of the device by a PC with controlling software (communication protocol is available)

• High speed dynamic controller for monitoring of measured values and test procedures(2,5KHz or 10 KHz)

• Meets different standards e.g. ASTM , BS ,AASHTO and etc

• Cyclic cell and back pressure(optional)

Specification
DescriptionTechnical Specification
Axial load60kN
Cyclic frequency15Hz
Confining pressure5000 kPa
SCAN MESample Size(diameter) 300mm


Software

GEOSYS Software

GEOsys is a multi-functional and modular controlling and data acquisition software in Windows. It allows for the simple programming of complex user defined test sequences via structured Windows instructions on a graphi cuser interface.

GEOsys utilizes a flexible, programmable system that controls test appliances that coordinate various test operations. The flexible operating panel provides tools to configure the appliance,  editors to carry out load procedures, and functions for analysis, presentations and logs. The software is designed to support a modul arstructure for the test environment so as to enable a flexible configuration and thus fulfil the specific requirements of the company.


The important key feature of this software is the ability to allow users to simply and freely program standard or complex test sequences with structured Windows operations via a graphic user interface.

Thanks to the wide range of abilities Geosy soffers, it is not only compatible with our products, but it can also be used with hardware from other manufacturers, providing data acquisition and test controlling for hard- ware of a similar or more advanced standard.


应力路径三轴仪

Main Features

• Unique platform to address all testing needs, be it soil, asphalt, rock or construction related, both dynamically and statically

• Controlling and data acquisition software

• Simultaneous loops for all connected actuators

• Free programmable Test Sequence Control and Formula Editor (upgrade version)

• Complete real-time data-acquisition and closed- loop control for each channel using real parallel configured channels

• Flexible and user-friendly

• Supporting functions of similar manufacturer Options concerning data conversion in ASCII

• Digital setting of PID Parameters (parameter optimizing or tuning depending on the material) even during operation

• User roles (administrator, service, developer, lab assistant) for easy handling – decreasing the likelihood of errors

• OS platform independent software (e.g.available for WINDOWS, LINUX or MAC OSX)

• Ability to allow users to simply and freely program standard or complex test sequences with structured Windows operations via a graphic user interface

• Suitable for up to any number of simultaneous and independent real-time, closed-loop controlled channels, machines, or test devices, such as axial load, confining pressure, pore water pressure, as pore air-pressure

• Management of hardware components User supplied, calculated measurements

• Languages: English, German, Russian, Chinese, Polish and etc


Soil Triaxial Test Modules (Static & Cyclic)

GEOsys is designed for closed-loop controlled static & Dynamic tests for all test applications in material testing, such as stress-controlled, strain-controlled, all stress paths, loops, any kind of waveforms like sine, rectangle, triangle, and predefined waves.

It is controlling and data acquisition software and also has different modules to run tests according to ASTM or BS or other standards. Please note that some tests listed below will require optional hardware. Depends on the requirement of the customer one or several modules would be delivered with main software, such as:

电机控制动三轴试验系统    电机控制动三轴试验系统

• Data Acquisition, processing and device management (DPD) Module

• Saturation Module

• B-value -Test Module

• Consolidation Module (Isotropic or anisotropic)

• Permeability Test Module

• Stress path module: Linear stress paths- p, qor s, t

• Static Shear Stage Module:

UU: Unconsolidated Undrained Triaxial Test (Total Stress test)

CU: Consolidated Undrained Triaxial Test with pore pressure measurement (Effective Stress test)

CD: Consolidated Drained Triaxial Test with pore pressure measurement (Effective Stress test)

• Unsaturated Test Module

• K0 Test Module

• Tension (Extension) Test Module

• Dynamic Shear Stage Module

• Loading Module

• Resilient Modulus Test Module

• Temperature Controlled Triaxial Testing

• Cyclic cell /Back pressure Module

Upgrade Option

• Cell Wall Lifting System

The system can be upgrading to cell wall lifting mechanism during production and it speeds up the testing preparation procedure and reduce the time which is required to provide the system for a sing letest. (no need to have extra lifting frame-counter balance)

 伺服电机控制动三轴试验系统     伺服电机控制动三轴试验系统

• Cyclic Cell And Back Pressure

The Cyclic Volume Pressure Controller is a high accuracy advanced electromechanic or servo hydraulic Closed-loop controlled Pressure System which regulate Cyclic pressure and provide flow control  in a variety range for different applications e.g. cell pressure or back pressure for cyclic triaxial test system.It also can be used to eliminate disturbance to constant cell pressure in dynamic test cells which use Triaxial cell without balanced ram.This pump can apply pressure up to 4000kPa with volume change control up to 1000 ml with different range of working frequency up to10 Hz.The main software should be upgraded as well with the module of Cyclic Cell and Back pressure to enable your Triaxial tests to be run with this feature.

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• Unsaturated Test Set Up

By adding additional hardware to the system, the system will be upgraded to do unsaturated testing as well. Depends on the selected method of measuring the sample volume change, the additional accessories would be different. High Air Entry Porous Bottom Disc, Advance Pressure controller (APC), unsaturated Software module are some examples of these accessories.

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• Internal Strain Measurement

The triaxial test system depends on its type can accept internal sensors for measurements of load, axial deformation and radial deformation. This upgrading helps to have higher accuracy and measuring during the test. For example, it is highly recommended to use Circumferential measuring unit for K0 testing.

电机控制动三轴试验系统

• Bender Element Test

The Triaxial test system is able to simply accept bender elements and run bender element tests with its additional accessories. Piezoelectric elements can be easily placed in top and bottom cap of the device for performing bender element or compression wave velocity tests. The existing cell is initially designed to accept the Piezoelectric elements without any extra upgrading on the cell. Exchangeable Bender Element Set for any specimen from 35mm to 150 mm is available and designed for usage in Triaxial test device and can be used for other devices e.g. resonant column device, consolidation cells simple-shear or standard shear devices. Combined Bender element sets are available for Horizontal and also lateral testing for both S and P-wave testing in opposing propagation directions.

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 Water De-Airing Apparatus

This compact unit provides de-aired water with low level of gas content, as it is demanded for different tests with standard volume capacity from 20 Liter up to 60 Liter.

电机控制动三轴试验系统

• Environmental Temperature Chamber

The triaxial test system depends on the type and existing components has the possibility to be upgraded to run testing under temperature controlling for variety range of temperatures from-25 ° C to +200° C.This upgrading need different accessories/components depends on the main system including of hardware and also software. Due to the PC-control of temperature unit, any kind of temperature test sequences can be performed.

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