Hydraulic Type Multifunction Vibration Triaxial Test Apparatus

SEIKEN,INC.

This vibration triaxial test apparatus can do multiple tests, for example, Liquefaction strength test, Soil deformation character test, etc. and usual Static triaxial test.
As the feature of this apparatus, the hydraulic servo control makes possible to do excellent following-up to the stress level of purpose compared with usual pneumatic type.Regarding the pressure control of Triaxial cell, vertical pressure and lateral pressure are done independently. It makes possible to do flexible response from Isotropic consolidation to Anisotropic consolidation.
As many options are available in the same way as usual static triaxial test apparatus, it can be upgrade this apparatus to corespond to every testing method.

As many options are available in the same way of usual Static triaxial test apparatus, it can be upgrade this apparatus to correspond to every teting method.

Majoy testing item
* General Static Triaxial Tests
* Liquefactional Strength Test
* Deformation Character Test
* Volumetric strain test with Constant mean principal stress condition
* Several kinds fatigue tests

Hydraulic type Multi Function Vibration Triaxial Test Apparatus

Feature

This is Electric-Hydraulic servo control vibration apparatus, and it makes Smooth waveforms and accurate feedback surely.

Each water system is protected against air mixing, not to mention Vacuum type de-aired water making apparatus. Especially, back pressure generating system is arranged concentrated protection against air mixing.

Many kinds of Saturating method are possible. Double loading saturation is available,which is effective measuring to saturated soil especially.

Besides, carbon dioxide ventilator , etc. which
are effective to sandy soil are available.

Specification
Testing Condition	Consolidation condition	Isotropic and Anisotropic Consolidation
	Static triaxial compression test	Shearing by Shearing test by strain control Constant mean principal stress test by strain control
	Dynamic triaxial compression test	Liquefactional strength test, Deformation character test (Stress control of Sine wave, Triangle wave, Rectangle wave and random wave by external input). But, Random wave is for only Strain control test.
Constitution	Vertical Loading Apparatus	Frame capacity 5ton (with Electric chain block for pulling up the medium capacity traxial cell)
		Hydraulic pressure actuator 2kN, 10kN with Servo valve
		Electric strain control type compression apparatus Max. : 50kN, From max 2.00mm/min to 0.002mm/min
	Triaxial Cell	Small capacity　Suitable specimen Dia.50x100, Dia.75x150mm Max. vertical loading: 5kN, Usual use of lateral pressure 800kN/m2 Load cell built-in type Double bellofram cylinder for Isotropical pressure type
	Triaxial Cell	Medium capacity triaxial cell:　Suitable specimen Dia.100x200 Max. vertical load 20kN, Usual use of lateral pressure 800kN/m2 Load cell built-in type Double Bellofram cylinder for Isotropical pressure type
	Hydraulic Generator	Motor 3.7kW 200V 3phase　Pressure 10MPa Delivery　13L/min Tank capacity 100L Cooling of Oil temperature: Air cooling type
Electric Measuring Apparatus	Load cell	Waterproof type　Inner load cell　From 1kN to10kN External load cell 5kN、10kN
	Small displacement apparatus	Gap sensor　+/- 1mm
	Pore water pressure gauge	1MPa
	Lateral pressure gauge	1MPa
	Vertical displacement meter	50mm
	Volume change apparatus	Double tube burette 25ml (Combination use with Differential pressure transducer)
	Servo controller	Frequency: From 0.01 to 10Hz Wave: Sine, Triangle and Rectangle waves, With external input terminal with Slope generator input cdircuit
	Feedback switching apparatus	Loading, Axial displacement
	DC Amplifier	4 ch. : For Inner load cell, Axial displacement, Small displacement x 2
	Dynamic strain amplifier	8ch. : For External load cell, Inner load cell, Axial displacement, Small displacement x 2, Pore water pressure, Lateral pressure, Volume change aparatus
Data Acquisition	A/D conversion board	CONTEC AD12-16U(PCI)E
	Software	Windows95 & Windows98 corresponding Software
Accessories	Electric compressor	Package type, Motor 200V 3 phase Subsidiary Tank　83L
	Air Drier	Cold strage type compressed air dryer unit, AC100V Motor 75W
	Electric Vacuum Pump	For making of De-aired water 50L For Double negativ pressure control 20L
	Besides, many accessories are available.