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The GDS hollow cylinder test system in Tsinghua University
Release time:2018-06-19

The GDS hollow cylinder test system in Tsinghua University!

The hollow cylinder system over the years is the top research institutions, applied to the three principal stress magnitude and direction of soil on it through the control, can be applied to complex stress path of soil. Optional system dynamic and static and local strain measurement. GDS hollow cylinder system can be used in many experiments, including validation of constitutive models of soil dynamic response in the earthquake activity.


Small strain hollow cylinder system (HCA) can be applied to the hollow cylinder rotation deformation and torque control soil samples, 3 principal stress magnitude and direction by GDSLAB software. The HCA system is designed around a core component, the core component in minimizing the recoil and friction conditions provide a high level of axial load and torque, in order to adapt to the requirements of small strain tests. The dynamic version optional can achieve the maximum 5Hz loading frequency. Options include: unsaturated soil test function, the sample maximum diameter can be measured 200mm.


Key features:

(1) the axial and torsional stiffness

(2) the built-in channel mouth and top lifting frame

(3) GDSLAB automatic control and parameter calculation

(4) the built-in water load sensor and torque sensor

(5) dynamic pressure and back pressure optional

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