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Dynamic and static true triaxial test system TTA
True triaxial
    Model: TTA
    Origin: British GDS Company Use: Dynamic and static true triaxial test system GDSTTA is used to study complex loading processes, principal stress rotation phenomena, plane strain and other complex triaxial stress conditions.
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GDSTTA Dynamic and static true triaxial test system GDSTTA

product description:

”是一套用于 土力学性质三轴试验 的高级仪器,可以非常直观明了地直接给立方体的试样从X、Y和Z三个方向施加不同的应力,实现真正的三轴受力情况,可以用于研究复杂的加载过程,主应力旋转现象,平面应变等复杂三轴受力情况。 " True Triaxial Test System " is a set of advanced instruments for triaxial testing of soil mechanics properties . It can directly and directly apply different stresses to the cube specimen from the three directions of X, Y and Z to achieve a true triaxial test . Axial forces can be used to study complex triaxial forces such as complex loading processes, principal stress rotation phenomena, and plane strain.

GDS true triaxial instrument has static and dynamic two types. Dynamic true triaxial instrument is compatible with the function of static true triaxial instrument. The dynamic true three-axis test system can choose one axis to be dynamic, or two or three main test axes to be dynamically loaded, depending on the budget investment and test purpose.

The principle of the true triaxial test system is very simple, but it has not been used well for many years. The main reason is the loading boundary condition in the true triaxial test. Due to the large amount of soil deformation, it is easy for the loading plates to conflict with each other during the loading process, and the loading boundary conditions cannot be successfully simulated.

On the loading method of the spinner, GDS can provide the classic servo motor loading method of GDS, as well as the electro-hydraulic servo loading method of larger load, which can meet the requirements of various test purposes. The software platform can also develop further test functions according to the special needs of users.

Design drawing of true triaxial pressure chamber:

The four hydraulic actuators of the true triaxial test system are installed outside the pressure chamber. The piston rod passes through the hermetically sealed low-friction bearing and enters the pressure chamber. The underwater load sensor is directly installed on the top of the piston rod and directly connected to the loading plate. Contact, which can eliminate the effect of confining pressure and friction on loading force, without additional correction.

真三轴仪压力室设计图

In general, GDS mainly provides ordinary rigid loading plate forms, but GDS can also design sliding rigid loading plate devices for users. In this case, the loading plate will include linear guide bearing devices to eliminate as much as possible between the loading plates. The contact friction force minimizes the influence of the friction force and ensures that each loading plate can slide freely.

GDS dynamic and static true three-axis test system configuration:

● 4 synchronous actuators
● 2Mpa confining pressure
● Large observation window
● 16-channel high-speed synchronous data acquisition
● Optional: local strain measurement
Unsaturated soil test
Bending element
Frictionless pressure plate
Dynamic confining pressure

GDS dynamic and static true three-axis test system version:

Depending on the actuator configuration, there are three versions of the GDS true three-axis test system to choose from:
● Motor servo static true triaxial instrument
● Motor servo controlled dynamic true triaxial instrument
● Electric industry servo true triaxial instrument

GDSTTA dynamic and static true triaxial test system optional parameters:

(1) Selectable frequency range: 2Hz / 5Hz / 10Hz
(2) Axial load range can be selected: 5kN / 10kN / 25kN
(3) Selectable rated confining pressure: 2000kPa / 5000kPa
(4) Applicable sample size: standard size 75 x 75 x 150mm; other sizes can also be customized as required

GDS dynamic and static true triaxial instrument core structure description:

The core structure of the GDS true triaxial test system includes: 4 sets of underwater load sensors, 16 pipeline / circuit channels, gates, anti-collision pressure plates, bases, etc.

Core composition of GDS true triaxial test system

GDS dynamic and static true triaxial test system technical specifications:

● Sample size: 75 x 75 x 150mm (cuboid), other sample sizes are available;

● 4 actuators are installed;

● With 6 electronic communication connection connectors;

● Shown below is a simple pressure plate;

● Maximum confining pressure: 2MPa

● All actuators have sealed bearings with low friction;

● Exquisite stainless steel side plate;

● Front and rear panels can be opened

● Bolts are fixed on the front and rear panels

    GDS true triaxial data acquisition diagram

    GDS true triaxial data acquisition diagram

    GDS dynamic and static true triaxial instrument price:

    For specific quotations, please consult the offices in Europe and the United States.

    Some domestic users

    GDS dynamic and static true triaxial test system procured by the University of Hong Kong

    香港大学采购的GDS动静态真三轴测试系统
    Wenzhou University True Three Axis
    Wenzhou University True Three Axis

    Hubei University of Technology TTA 2017

    Ningxia University TTA 2017

    As the world's first brand of indoor geotechnical testing equipment, the British GDS has been committed to developing the world's highest-end geotechnical triaxial equipment. Geotechnical true triaxial equipment is one of its products. In 2006, GDS and Tongji University cooperated to improve Tongji University's fully automatic true three-axis system. In 2010, the geo-trial true triaxial test system designed and developed by GDS was recognized and procured by the Hong Kong University of Science and Technology (HKUST), which ranked second in Asia in 2010, and brought a profound impact on the true tri-axial research in China.

    GDS true triaxial test system is currently the top imported true triaxial test instrument. Welcome to buy.

    solution
    2018-11-14 10:10:03 GDS rock true triaxial test system case-Northeastern University2018-11-14 10:10:03

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    2018-12-28 16:09:40 Wenzhou University GDS true three-axis TTA system use case2018-12-28 16:09:40

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    Applications
    2018-11-14 10:10:03 GDS rock true triaxial test system case-Northeastern University2018-11-14 10:10:03

    Learn more

    2018-12-28 16:09:40 Wenzhou University GDS true three-axis TTA system use case2018-12-28 16:09:40

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    2019-05-10 10:49:56 GDS true triaxial test system application case sharing2019-05-10 10:49:56

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    Related Downloads
    2019-01-24 13:29:54 Dynamic and static true three-axis test system TTA 2019-01-24 13:29:54

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    Ordering Information
    STQ180036 MULTI AXIS TRUE TRIAXIAL APPARATUS (TTA)-ELECTRO-MECHANICAL
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