Automated Direct-Residual Shear Apparatus
Automated Direct-Residual Shear Apparatus
Automated Direct-Residual Shear Apparatus
Automated Direct-Residual Shear Apparatus
Automated Direct-Residual Shear Apparatus
Automated Direct-Residual Shear Apparatus
- Description:
Automated Direct-Residual Shear Apparatus
- Model:
直剪/残剪试验仪
- Manufacturer:
APS-WILLE Geotechnik
Product Information
  • Description
  • Standard
  • Feature
  • Specification
  • Software
  • Upgrade Option
Description

直剪试验仪

Germany WILLE This electromechanical test apparatus is a robust construction device including of high-quality mechanic and electronic components which produces repeatable test results and the excellent quality makes it suitable for research and also usual test applications. It applies vertical and horizontal independent loads by electromechanical actuators which enables each axis to be controlled in displacement(strain or velocity) mode as well as load control. The apparatus with reversible electromechanical motor is used for direct shear tests and also residual strength test.


The apparatus comes in two models, one is benchtop and another one is standalone unit. The bench type has a small footprint. Both are suitable for testing of shear parameters of soil e.g. Cohesion and the effective friction angle. The main advantage of device is an accura tetesting of soil parameters without tilting and friction between shear box components (e. g. load piston, upper shear box, lower shear box).The normal stress and the shear stress are closed loop controlled by an electromechanical drive system.


The set-up of the test parameters can be done either via the front operational panel which includes of control buttons and function keys with LCD display or directly by software. In the Direct shear test a cuboid or circular specimen is installed in a shear box which consist of two parts and subjected to vertical and horizontal stresses. The upper shear box is fixed, and lower part is moving against this fixed box therefore a shear surface would be generated, in which a shear stress builds up. The shear box prevents the sample to have lateral expansion. GEOsys software in combination with this unit performs all your tests automatically and without operator assistance during the test period.

直剪试验仪

 System Geography

① Electromechanical Stiff stand-alone Load frame

② Electromechanical Stiff benchtop Load frame

③ Two columns

④ Upper traverse

⑤ Front operational panel includes of control buttons, function buttons and LCD display

⑥ Axial Load cell

⑦ Axial displacement transducer

⑧ Direct Shear Box

⑨ On-0ff switch button

⑩ Stop button


Benchtop Direct-Residual Shear Apparatus

This tabletop direct shear device is an automated compact apparatus with small footprint and is suitable for direct shear residual tests up to 100x100mm specimen size with fully operation stand-alone via front panel and hardware buttons or directly with software. The device has two electromechanical loading unit includes of stepper motor and gearbox which applies normal stress and shear stress on sample with closed loop control function. This compact device eliminated the manual loading for dead weights or pneumatic version which needs air pressure for operation.


The Apparatus includes of two Calibrated high precision load transducer with integrated amplifier for measuring axial normal stress and shear stress with Accuracy class 0.1% and resolution of 0.1 N. It has also two precision vertical displacement transducer and shear displacement transducer with Accuracy class of 0.1 %, resolution of 0.001 mm and required travel range of the customer.

The Lower part of shear box is locating on a low friction bearing and moves with the small friction just in horizontal direction.

The apparatus is used to determine soil strength parameter i.e. effective Cohesion (c) of the soil, angle of Friction or Angle of Shearing Resistance (φ) and can also be used to determine the residual shear strength parameters, i.e. cohesion (cR) and angle of friction (φR).

直剪试验仪

Standalone Direct-Residual Shear Apparatus

This robust and high stiff apparatus is including of hig-hquality mechanic and electronic components which produces repeatable test results and the quality makes it suitable for research and also usual test applications.

This ASA model has a double cross bar for performance of tests and result of frictionless tests. This function enable device to get upgraded with different test jigs and inserts to run below tests with high accuracy: • Uniaxial direct Test  • Simple Shear Test  • Soil triaxial Test  • Oedometer- Consolidation Test


The Lower part of shear box is locating on a low friction bearing and moves with the small friction just in horizontal direction. All above functions makes it a unique device for research applications.

The electromechanical drive with high resolution and closed loop control rate generates closed-loop strain and stress controlled static axial load and strain and in addition stress-controlled shear forces.

The apparatus is used to determine soil strength parameter i.e. effective Cohesion (c) of the soil, angle of Friction or Angle of Shearing Resistance (φ) and can also be used to determine the residual shear strength parameters, i.e. cohesion (cR) and angle of friction (φR).


The Apparatus includes of two Calibrated high precision load transducer with integrated amplifier for measuring axial normal stress and shear stress with Accuracy class 0.1% and resolution of 0.1 N. It has also two precision vertical displacement transducer and shear displacement transducer with Accuracy class of 0.1 %, resolution of 0.001 mm and required travel range of the customer.

直剪试验仪

Shear Box

The complete shear box system is made of stainless steel and is designed to contain water that surrounds the specimen and allows the specimen to be submerged for saturate conditions. The shear box consists of lower and upper shear boxes with rigid wall either in round or square shape, adaptor loading pad, two porous plates, load piston, sample cutter, dolly and water container for saturated conditions. The Lower part of shear box is locating on a low friction bearing and moves with the small friction just in horizontal direction while the upper shear box is fixed.

The Shear box comes in different sizes e.g. :

• Square:60 x 60 mm ( 36c㎡)

• Square:100 x 100 mm (100c㎡) 

• Circular:Ø 60 mm (28.27c㎡)

• Circular:Ø 71.4 mm (40c㎡)

• Circular:Ø 80 mm (50c㎡)

• Circular:Ø 94.4 mm (70c㎡)

直剪试验仪

SIEMENS Industrial Controller

The operation of the device requires the direct input of numerical values besides the use of the function keys. The control element made by Siemens Company is an advanced control panel which allows the user to enter the numerical values and control the system by other function keys easily. You need just to enter the values and press the run Key to start the operation.

The operator panel gives the user access to all functions in the operation and service menu. This enables the user to start and run the pump as well as conduct calibration if needed. These controls are instinctive and simple to use. All functions, such as actual status, flow rate and information on the pressure pumping ramp can be seen on the LCD display on the front of the device.

全自动直剪/残剪试验机

Main Features

• Graphic display including 10 input membrane keys

• Setting force or position manually

• CE mark

• Ethernet interface

• 22 available different languages

• Multi language menu navigation

• Calibration function

• 4 free analogue Ports with A/D converter (interface+ /- 10 VDC)


Control Parameters

The normal load (axial) can be operated in constant, ramp or cycle modes in three different operating modes:  • Velocity control  • Force control  • Displacement control

The Shear load (Horizontal) can also be operated in constant, ramp or cycle modes in three different operating modes: • Velocity control  • Force control  • Displacement control

The set-up of the test parameters can be done either via the front operational panel which includes of control buttons and function buttons with LCD display or directly by software.

Standard

• ASTM D3080-04   

• BS1377-7   

• AS1289.6.2.2   

• CEN ISO/TS 17892-10:2004/AC:2005 

• JGS 0560   

• JGS 0561

Feature

• 2 columns load frame with powder-coated steel housing

• High stiffness robust and compact design

• shear box made of stainless steel up to150mm sample size

• Compact ergonomic design

• Creep test

• Resilient test

• Front operational control panel with membrane keypad

• 2 Load cells to measure and closed loop control of axial and shear load

• 2 Displacement transducers to measure and closed loop control of axial and shear displacement

• Safety functions to prevent overload and overtravel

• Closed loop controlled normal and shear stress

• Real-time data and graph display

• Ethernet Port for fast data transferring to PC

• High quality industrial controller with displayer and membrane keys or Touch panel and graphic display for monitoring of measured values and test procedures

• Manual control or by software/PC

• Compatible to LABVIEW©

• Flexible controlling software for nearly unlimited test procedures of all test options

• Different upgrading options are available on request i.e. bender element, simple shear ,oedometer and triaxial test

Specification
DescriptionTechnical Specification
Load typeElectromechanical
Normal force5kN 
Shear force5kN
Speed range30~0.00001 mm/min
Accuracy class0.1%
Resolution0.00001 kN
Vertical displacement50mm
Shear displacement25mm 
 sample size 100 x 100mm
Computer InterfaceEthernet
Power220V/50 Hz,110V/60 Hz
Dimension400 x 600 x 700mm ( W x D x H)


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.

全自动直剪/残剪试验机

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 Large Direct Shear Test Module

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

The software allows to run direct shear tests on cohesive and non-cohesive soils as well as direct sheartests on soil-geosynthetic interfaces. It is controlling and data acquisition software and also has different modules to run tests according toASTM or other standard methods. Depends on the requirement of the customer one or several moduleswould be delivered with main software, such as:

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

• Consolidation Stage (Single stage, multiple stage or over consolidation mode)

• Static Direct Shear module: *Constant Normal Stress test  *Constant Normal Height test  *Constant normal stiffness test (CNS)  *Shear stress-controlled test  *Shear displacement control (forward and reverse)  *Calculation of shear stresses

直剪试验仪

Upgrade Option

• Bender Element Test

The system is able to be upgraded by bender elements and run bender element tests with its additional accessories. Piezoelectric elements can be easily placed in top and bottom shear box of the device for performing bender element or compression wave velocity tests.

多功能循环动态单剪/直剪试验系统(CSS)

• Upgrading Options For Asa (Stand-Alone Model)

This testing machine can be used for several soil mechanical testing applications when it is equipped with the according testing inserts and adapters. The additional inserts and adaptors need ordered separately on request.