Earth Products China Limited won the bid of the GDS True Triaxial Apparatus at Guangxi University

The GDS True Triaxial Apparatus (GDSTTA) has the defining characteristic that, unlike conventional triaxial apparatus, all three principal stresses can be controlled independently, rather than just two in a conventional triaxial system. This allows a wider range of complex stress paths to be performed . This dynamic cyclic system is powered by advanced electro-mechanical actuators or optional hydraulic actuators and is an extremely sophisticated research tool.
Vertical and one horizontal axis are loaded via the dynamic actuators (axis 1 and 2), stress control is provided for the 2nd horizontal axis, (axis 3) via cell pressure.

Key features	Benefits to the user
Stress or strain is applied to a 75mm x 75mm x 150mm sample independently on three axes:	Two pairs of matched dynamic rams for axes 1 and 2, and a confining fluid provides pressure for the 3rd axis on load readings.
Ram specification:	Each ram has its own internal submersible load cell and displacement transducer to ensure friction effects are minimised.
Electro-mechanical actuators as standard:	Electro-mechanical actuators provide an easier to use and environmentally friendly solution for accurate testing to 5Hz. Electro-mechanical actuators do not require a hydraulic power pack to be present, hence no requirement to service a powerpack or to protect system users from noise generated by a powerpack.
Custom designed optional hydraulic actuators:	The hydraulic actuators have been custom designed by GDS to be seal-less with hydrostatic bearings. This improves the actuator performance (up to 10Hz) and reduces whole-life servicing costs as there are no piston seals to replace. Each actuator pair can be controlled in “static-mode” with either constant, ramp or slow cyclic targets in terms of load, stress or displacement.
Sample preparation:	Full sample preparation equipment for cohesive and non-cohesive samples is provided with the system including a specially designed soil lathe for producing cuboidal samples.

For more information, please contact Earth Products China Limited .
Service hotline: 400-700-9998
Email: marketing@epc.com.hk
Official website: en.epccn.com

中国·永利y23455(股份)有限公司

Earth Products China Limited won the bid of the GDS True Triaxial Apparatus at Guangxi University