Fully Automatic Laboratory Vane Shear Test Apparatus
Fully Automatic Laboratory Vane Shear Test Apparatus
Fully Automatic Laboratory Vane Shear Test Apparatus
Fully Automatic Laboratory Vane Shear Test Apparatus
Fully Automatic Laboratory Vane Shear Test Apparatus
Fully Automatic Laboratory Vane Shear Test Apparatus
- Description:
Fully Automatic Laboratory Vane Shear Test Apparatus
- Model:
Fully automatic cross plate
- Manufacturer:
APS-WILLE Geotechnik
Product Information
  • Description
  • Standard
  • Feature
  • Specification
  • Software
  • Upgrade Option
Description

十字板剪切试验

The shear Vane testing is used to determine the total shear resistance of normally cohesive, un-drained soils (especially soft clays) by fast shearing and is mostly useful for soils with low shear strength. 

The fully automatic lab vane was developed and designed according to scientific and research insights and requirements so that undisturbed soil samples (e.g., core cutters) as well as treated samples (e.g., Proctor samples)or artificial mixtures can be tested for practical applications as well as for research purposes. 


The test is relatively easy to set up, quick, and provides an economical way of soil shear strength estimation and due to the variable sample container attachment and the height-adjustable vertical cross bar, the shape and size of sample containers which can be used are virtually unrestricted.


Fully automatic controlled laboratory vane tester is including of main device, data acquisition and evaluation software. The data acquisition has a high quality displayer with membrane keys for monitoring of measured values and test procedures and also manual operation of the test.



The working principle of the laboratory vane shear test consist of pressing a vane (four bladed type)into the soil (undisturbed tube sample or remolded sample) and rotating the vane with a constant rate to shear the cylindrical surface. The torque required for this purpose is measured and then the Undrained Shear Strength (Su) is calculated by a formula by dividing the applied Torque (T) by a constant (K). The K directly depends on the dimension/height of the chosen vane.

Fully Automatic Laboratory Vane Shear Test Apparatus

The torque is measured by a calibrated torque transducer which is implemented inside the device and attached directly to Vane. This test is a cheaper option compared to the other methods of testing shear strength of clay such as triaxial shear test or direct shear test. 

十字板剪切试验


实验室全自动十字板剪切试验仪

System Geography

① Hand knob for adjusting the vertical cross bar

② Vane

③ Clamping device for holding sample containers

④ Stiff base plate

⑤ Data acquisition system

⑥ Front panel including of displayer, function keys and Control buttons

⑦ ftware


Data Acquisition

The data acquisition system is integrated with a high-quality digital display and membrane keypad for monitoring of measured values and test procedures direct, semi-automatic operation of test via keyboard. The displayer of data acquisition system shows the important values during the test and has a green backlighting to ensure readability even in adverse lighting conditions. 

The data logger connects by an ethernet connection to PC and the software and enable user to operate the test fully automatic with our GEOsys software.

The operator panel includes three main parts:

• LCD display:The displayer of data acquisition system shows the important values during the test and has a green backlighting to ensure readability even in adverse lighting conditions

• Function keys (F1-F10)

• Control buttons(Arrow keys, ENTER, ESC, HELP, etc.)

十字板剪切试验

Vane Sizes

The vane for the device is made of four rectangular bladed stainless-steel vane attached to a short steel rod and the blades have different diameter and heights. The choice of the vane depends to soil strength which would be tested. The larger vanes are mostly used for the soils which are expected to have low strength values. 

• 10104-A5-001    VaneA 12,7 x 12,7mm

• 10104-A5-002    VaneB 12,7 x 19,0mm

• 10104-A5-003    VaneC 12,7 x 25,4mm

• 10104-A5-004    VaneD 20,0 x 30,0mm

• 10104-A5-005    VaneE 30,0 x 60,0mm

• 10104-A5-006    VaneF 40,0 x 80,0mm

• 10104-A5-007    VaneG 25,4 x 50,8mm


Holding Sample Tube Attachement

The apparatus has a suitable attachment to hold firmly sampling tube or cylindrical container at the base part of device.

The based part of the device is U shape type to enable the operator to use longer sample containers, but the device can be delivered with solid plate which is suitable to attach short sample tube if it is required.

实验室全自动十字板剪切试验仪         实验室全自动十字板剪切试验仪

Standard

• DIN 4094

• BS 1377

• ASTM D 4648

Feature

• Simple, quick and accurate operation

• Generates constant rate of rotation

• Rigid and Stiff apparatus

• With Speed control and Digital Shear Stress Measurement

• Determination of the shear strength of undrained soft to stiff soils

• Fully automatic controlled laboratory vane tester including data acquisition and evaluation software

• Unlimited shear displacement

• Digital measurement of shear resistance (torque) using a digital transducer and LC-display with continuous or value storage

• Quick clamp attachment for different sample sizes

• Height adjustable vertical cross bar for testing different sample heights

• Accepts different size of specimens from 50 up to 200mm diameter

• Automatic recording of the shear resistance(torque) against displacement (angle)

• Fast Ethernet interface for transferring data to computer

• Control and evaluation software

Specification
DescriptionTechnical Specification
Sample diameter50~200 mm
Torque>3 Nm
Resolution0.001 Nm
Torque accuracyKl. 0.1%
Shear displacementunlimited
Measuring range according to vane size0~466 kN/㎡
Angular speed (stepless) 0.0001 °/s~20 °/s

Data Transfer

Ethernet
Power Supply110 - 230 VAC / 50 - 60 Hz / 15 VA


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 graphic user interface.

The software is designed to support a modular structure for the test environment so as to enable a flexible configuration and thus fulfil the specific requirements of the company.  It is controlling and data acquisition software and also has different modules to run tests according to ASTM or BS or other standards. 


The fully automatic vane shear software allows automatic recording of the shear resistance (torque) against the displacement (angle), it can display the measurement as a diagram (not just get the big. torque).

• The software has an enter parameters box which the important input parameters can be entered into software to be shown in test result

• The displayer of data acquisition system shows the important values during the test and has a green backlighting to ensure readability even in adverse lighting conditions

• Continuous on screen(software) observation of the shear resistance in a force-displacement diagram

实验室全自动十字板剪切试验仪      实验室全自动十字板剪切试验仪

实验室全自动十字板剪切试验仪


实验室全自动十字板剪切试验仪

Upgrade Option