GDSLAB Advanced Loading module (연직응역, 수평응력, 이방응력 장치)

 

       GDSLAB Advanced Loading module

            AdvancedLoading.dll

  독립조절 Independent Control over the following Parameters:

 

• Axial Displacement (mm)

• Axial Load (kN)

• Axial Stress (kPa)

• Deviator Stress (kPa)

 

 

extension device 이방응력 장치 연직과 수평응력이 다르게 작용

The advanced loading setup screen (below)

The control type (constant, ramp, sinusoidal or hold volume) is selected for each

parameter accordingly. 압력 유지, 진동, 체적 유지

The example below shows the cell pressure set to a constant 430 kPa,

the back pressure to ramp from 0 to 400 kPa over 20 minutes,

the axial control to cycle +/- 1mm around a 1.5mm datum with a period of 30 minutes (i.e. 30 minutes for 1 wavelength)

불포화토
4D Unsaturated Stress/Strain Path Module
4DUNSAT .dll

• Stress Path
Provides independent linear control of Axial Stress, Radial Stress, Pore Air Pressure and Pore Water Pressure. 연직응력 수평응력 시료 공기압 시료 배압 각 각 조절  진동

            • Strain Path
Provides independent linear control of Axial Strain, Radial Stress, Pore Air Pressure and Pore Water Pressure. 

      Stress/Strain Path

필요장치

• Axial Stress/Strain Control/Acquisition

(i.e. Bishop and Wesley Cell + volume change control, Load Frame etc)

• Radial Stress Control/Acquisition

• Pore Air Pressure Control/Acquisition

• Pore Water Pressure Control/Acquisition

Enter the required target Axial Stress (σa), Radial Stress (σr), Pore Air Pressure (Ua) and Pore Water Pressure (Uw) for the test (all in kPa).

Then set the length of time to reach the targets in minutes. (If performing a test where pore air pressure and volume will remain constant then the current value can be set to hold by ticking the box).