Rock Triaxial Test System
Rock Triaxial Test System
Rock Triaxial Test System
Rock Triaxial Test System
Rock Triaxial Test System
Rock Triaxial Test System
Rock Triaxial Test System
Rock Triaxial Test System
- Description:
Rock Triaxial Test System
- Model:
高温高压三轴
- Manufacturer:
APS-WILLE Geotechnik
Product Information
  • Description
  • Standard
  • Feature
  • Specification
  • Configuration
  • Software
Description

高温高压岩石三轴试验系统

Germany WILLE These advanced rock testing plants enable our customers to meet all test requirements in rock research testing per as ASTM standard or ISRM method.

The modular system can be configured with a variety of hydraulic cylinders, power packs, different jigs and attachments in order to perform uniaxial compressive strength, triaxial strength, post failure, bending, indirect tensile, direct tensile, fracture toughness, permeability, hydr-fracturing and creep tests for rock testing systems.


The systems are able to test a range of materials from soft rock (e.g. sandstone) to hard rock for different applications in rock mechanics research e.g. Exploration and production of fossil fuels, Mining and construction, Tunneling and Geothermal energy development.

A variety of jigs and attachments are available to perform uniaxial compressive strength, triaxial strength, post failure, bending, indirect tensile, direct tensile, fracture toughness, Hydr-fracturing, permeability, creep, flexural and cyclic loading tests.


GEOsys software, with several testing modules/applica-tions controls the test procedures, means it can work as a fully automated system and provides an easy way to create custom test modules. It enables the users to applying different stress paths or strain rates with real-time graphics with zoom and freeze functions for printer output at any time (after and during the test).


With many years of experience, we are able to tailor our products and services to your aims and needs. Our customized solutions can help you achieve unique and specific requirements. We approach each project individually, openly and would be proud to support you in achieving the desired laboratory testing system. We have the knowledge and experience to help with a variety of testing systems for different fields of high pressure/high temperature tests e.g:

• Rock mechanics research  • Mining and construction  • Tunneling` Exploration and production of fossil fuels  • Geothermal energy development


Load Frame

Highly stiff and robustly constructed frame with custom-ized test area (customized clearances between columns and vertical clearance between platens) to accept different sample sizes for direct shear and triaxial tests.

The load frame optionally has a transparent test area guard for operator safety during tests. The load frame can have a fixed crosshead mounted on four columns to create a robust loading frame or can be manufactured as a wall type load frame.

• With differential pressure transducer with force measuring accuracy of ±1 % from 10 to100 % of machine capacity

• Integrated Stroke Transducer: High precision displacement stroke transducer, integrated directly into the hydraulic cylinder

• Different Frame Stiffness from 750 kN/mm up to 10.000 kN /mm (>10 X 10^9 N/m )

高温高压岩石三轴仪     高温高压岩石三轴仪


高温高压岩石三轴仪

Hydraulic Power Pack

Our series of hydraulic power-packs supply smooth hydraulic fluid to actuators, hydraulic pressure intensifiers, and servo hydraulic testing machines to meet their testing system demands.

As the dynamic performance of a hydraulic system depends on input oil flow and pressure in cylinder therefor we offer a wide range of flowrates to meet required dynamic performance for your application. All components are mounted conveniently for easy access.

A key feature of our hydraulic power packs is that they offer demand-dependent flow-rate control, delivering at a constant pressure of 210, 280 or340 bar. They can locate beside or in greater distance from load frame.

An oil-to-water heat exchanger or air-cooling exchanger controls fluid temperature. A temperature switch turns the hydraulic power pack off when the temperature of the fluid exceeds a pre-set value – lights on a front panel are used to indicate temperature levels. Closed loop re-cooler system (chiller for Oil /Water Cooling) is available on request and can be integrated to the unit.

高温高压岩石三轴仪

Front Panel Geography

indicators:Main switch、Emergency Stop、“Start”、“ON”(indicator light)、Reset、Manometer to operate pressures、Filter、Oil level (blinking)、Temperature (blinking)、Motor Temperature: The pump motor is overloaded、E-Stop: Illuminates after the emergency stop has been pressed

高温高压岩石三轴仪

Air Cooling Method

Air cooling method uses a large fan which forces cooling air through the vanes of a radiator to reduce the temperature of hot oil quickly and efficiently. The hot oil is circulating in radiator to get cooler and gets working condition again. For large flow rate power pack, the fan generate larger amount of cooled air or it is recommended to use water cooling method.


Water Cooling Method

In this method a cooled water is reducing the temperature of oil to enable it to reach to working temperature condition. Depends on the flow rate of the power supply, the water flow rate be calculated correctly to give the good performance. The noise level of hydraulic supply units which use water cooling method is higher than Air cooled method. For example, the noise level of a hydraulic supply with flow rate of 7 LPM with water cooling method is 51dbwhich is super quiet while with air cooling is 62db (the values are measured in 1-meter distance form unit).


Hydraulic Fill And Flushing Unit

This unit combined with an oil reservoir provides the control of the pressure for filling and emptying of all relevant components, e.g. Triaxial cell, pressure intensifier and etc.

It is included of a fluid pump combined with a cooling circuit to reduce the temperature of oil and provide it for injecting in the system. In some system, it is integrated inside the power pack and in some systems, it comes as a separate unit.

• Including constant pressure pump

• Integrated water-cooling system to cool down the heated triaxial cells after testing

高温高压岩石三轴仪

High Pressure/High Temperature Triaxial Cell

This is an advanced high-pressure/high temperature triaxial cell designed to test cylindrical rock specimens with diameters of up to 102mm, a length/diameter ratio of at least 2 under triaxial high pressure/temperature conditions. The axialload can reach up to 5,000 kN.

The cells are designed for testing the shear and creep characteristics of rock core or solid materials (e.g. granites, evaporates, cemented tills or clays) under triaxial stress conditions.

This series of triaxial cells fits inside various types of load frame that we produce. To apply confining pressure, we offer different types of high-pressure pump as well as pressure intensifiers in different pressure ranges.

Axial and radial strains are measured by internal axial and radial deformation measuring devices, which work in high pressure and high temperature conditions. 

The cell sits on a sliding mechanism to move easier in and out of testing area for easy set-up of the specimen and cell wall removing. An automatic lifting mechanism in combination with laod frame is available as well.

高温高压岩石三轴仪

Sliding Mechanism

The cell sits on a sliding mechanism to move easier in and out of testing area for easy set-up of the specimen and cell wall removing.

高温高压岩石三轴仪

High Temperature ontrol Package

This package allows the user to control and monitor the temperature inside the triaxial cell and the rock from ambient temperatures to200°C with an accuracy of 0.1 °C inside the cell.

The package includes a heater coils, which are attached to a triaxial cell and thermocouple/s are installed inside triaxial cells. The signals come to a controller to conduct a feedback control of the temperature, which is shown on an external display (on request) and within the software. The whole package makes Small temperature gradient within the cell and sample.

高温高压岩石三轴仪


Confining Pressure Intensifier(Cell Pressure System)

Our pressure intensifiers provide closed-loop, servo-controlled pressure to test samples. This can be used to generate confining or pore pressure in connection with multi-channel electronically controlled systems that manage servo-valves mounted to intensifiers. They are also used to measure permeability or for hydro-fracturing tests. Intensifiers can be used to measure flow in permeability tests as well as volume change in triaxial tests while the required pressure is applied.


Separate hydraulic power is needed to supply a primary power source to the pressure intensifier which in Rock triaxial tests is our main hydraulic power pack. This pressurizes fluid to 21 MPa (3,000psi), which in turn fills the intensifier’s reservoir. The fluid in the reservoir can then be brought up to the required pressure by the intensifier e.g.140MPa or 210 MPa.

A double-pump or a dual piston intensifier with two servo-valves is available as an option for pressure or volume control when continuous flow is required.

高温高压岩石三轴仪

Front Panel Geography

Diagram of valve schematic、Fluid level indicator、Pressure indicator、Manual valves (pressure on/off, and flushing valve or pressure supply/outlet as option)

And optionally on request can have: • Start/stop button  • Visible electronic temperature indicator  • Emergency shut down button

高温高压岩石三轴仪

Pore Pressure System

The pore pressure units are used to saturate jacketed specimens, pressurize andcontrol pore fluid in the specimen and are used for permeability tests.

Our high precision syringe pumps for these applications although the pressure intensifiers which are similar to units for cell pressure are useful for this purpose.

Fluid pressurized by the pumps ore pressure intensifier is applied to one or both ends of the specimen. Operators can perform drained and undrained tests, and the displacement transducer allows calculation of the pore fluid flow rate.

高温高压岩石三轴试验系统

Permeability Tests

The permeability test measurement is done by one or a combination of two pumps which are used to measure sample permeability by applying different pressures at each end of the sample, then measuring the pressure decay of the two ends over time. A set of end caps for permeability tests are available for each specimen diameter.

高温高压岩石三轴试验系统

Hydraulic Fracture Test

All of our Rock Triaxial cells are able to perform hydraulic fracture test on intact specimens in combination with a High-pressure Syringe pump or High-pressure intensifier and relevant components which are used to apply constant high-pressure fluid on hollowed sample. The dedicated software module would be integrated to main software for controlling the test. Please note that each specimen diameter requires dedicated components manufactured for the same size.

高温高压岩石三轴试验系统   高温高压岩石三轴试验系统


Ultrasonic Wave Maeasuring System

This is a complete system and is comprised of all required electrical and mechanical hardware e.g. signal conditioner and pulse generator, ultrasonic velocity and data acquisition controller, ultrasonic platens including combined P and S (OptionalS1 & S2) transducers as well as the required software. This package conducts ultrasonic velocity measurement tests on rock samples. The test is applicable at temperatures of 200°Cand pressures of up to 210 MPa.

高温高压岩石三轴试验系统      高温高压岩石三轴试验系统

Standard

• ASTM

• ISRM

Feature

• High stiffness 4 columns load frame with different load ranges with double acting actuator up to 5,000kN and including of MOOG servo-valve

• Frame’s Stiffness up to 10,000kN/mm

• Wall type load frame is available on request

• Advanced high-quality hydraulic power packs with high-quality noise protection, different emergency functions or cyclic test procedures

• Triaxial cells up to 210 Mpa and 200C degree

• Carriage assembly for easy removal and placing of triaxial cell or automatic lifting cell wall system (on request)

• Optional Transparent test area guard with front security door

• Different test packages: Triaxial Test package、Permeability tests(steady states or unsteady state)、Hydr-fracturing tests、Uniaxial compression test package、Direct tension test package、Indirect tensile package (Brazilian Test)、Fracture toughness testing package、Point load testing package

• High speed dynamic controller (2,5 kHz or 10kHz) for monitoring of measured values and test procedures e.g. Force, position or speed

• Flexible controlling software for nearly unlimited test procedures of all uniaxial, riaxial test applications with pore pressure, hydrofracking and permeability

Specification
DescriptionTechnical Specification
Axial Load5000 kN
Confining pressure210 MPa
Pore pressure210 MPa
Operation temperature270 °C
Sample size(diameter)Ø 25~100 mm
Frame stiffness>10 X 10^9 N/m


Configuration

高温高压岩石三轴试验系统

System Geography

① Load frame including of double acting servo-hydraulic actuator

② Servo-hydraulic power pack

③ Pressure intensifier for triaxial cell pressure

④ Hydraulic fill and Flushing unit

⑤ Triaxial cell and internal transducers

⑥ High pressure syringe pumps for back pressure/ permeability or hydro-fracturing tests

⑦ High Speed dynamic controllerSoftware

⑧ Software

Software

GEOSYS Software

GEOsys is a multi-functional and modular controlling and data acquisition software in Windows. It allows for the simple programming of complex user defined test sequences via structured Windows instructions on a graphi cuser interface.

GEOsys utilizes a flexible, programmable system that controls test appliances that coordinate various test operations. The flexible operating panel provides tools to configure the appliance,  editors to carry out load procedures, and functions for analysis, presentations and logs. The software is designed to support a modul arstructure for the test environment so as to enable a flexible configuration and thus fulfil the specific requirements of the company.


The important key feature of this software is the ability to allow users to simply and freely program standard or complex test sequences with structured Windows operations via a graphic user interface.

Thanks to the wide range of abilities Geosy soffers, it is not only compatible with our products, but it can also be used with hardware from other manufacturers, providing data acquisition and test controlling for hard- ware of a similar or more advanced standard.

高温高压岩石三轴仪

Main Features

• Unique platform to address all testing needs, be it soil, asphalt, rock or construction related, both dynamically and statically

• Controlling and data acquisition software

• Simultaneous loops for all connected actuators

• Free programmable Test Sequence Control and Formula Editor (upgrade version)

• Complete real-time data-acquisition and closed- loop control for each channel using real parallel configured channels

• Flexible and user-friendly

• Supporting functions of similar manufacturer Options concerning data conversion in ASCII

• Digital setting of PID Parameters (parameter optimizing or tuning depending on the material) even during operation

• User roles (administrator, service, developer, lab assistant) for easy handling – decreasing the likelihood of errors

• OS platform independent software (e.g. available for WINDOWS, LINUX or MAC OSX)

• Ability to allow users to simply and freely program standard or complex test sequences with structured Windows operations via a graphic user interface

• Suitable for up to any number of simultaneous and independent real-time, closed-loop controlled channels, machines, or test devices, such as axial load, confining pressure, pore water pressure, as pore air-pressure

• Management of hardware components User supplied, calculated measurements

• Languages: English, German, Russian, Chinese, Polish and etc


Rock Test Modules

GEOsys is designed for closed-loop controlled static & Dynamic tests for all test applications in material testing, such as stress-controlled, strain-controlled, all stress paths, loops, any kind of waveforms like sine, rectangle, triangle, and predefined waves.

It is controlling and data acquisition software and also has different modules to run tests according to ASTM or ISRM methods. Please note that some tests listed below will require optional hardware. Depends on the requirement of the customer one or several modules would be delivered with main software, such as:

• ASTM, Triaxial compression strength Test

• ISRM Rock Triaxial compression Test

• Rock Permeability Test (Steady State Method Oscillatory Method, Transient Pulse Method)

• Creep of cylindrical Rock core specimens in Triaxial Compression (ASTM D4406-04)

• Post-failure Test

• Hydro-Fracturing Test

• Rock Poroleastic Properties measurements

• Measurements of Poroelastic coefficients

• Biot's coefficient

• Skempton's coefficient

• Pore pressure control Test

• Pore fluid diffusion

• Hydrostatic loading

• Proportional Loading Test

• Biaxial Strain Test

• Static Rock Shear Test

• Cyclic Rock Shear Test

• Rock Polyaxial Test

• Temperature control Test

• Uniaxial Compression Test

• Uniaxial Strain Test

• Creep of cylindrical soft and hard rock specimens in uniaxial compression (ASTMD7070-16)

• Deformability of Rock Materials in Uniaxial Compression (ASTM D7012)

• Indirect tension tests on Rock specimens

• Direct Tension tests on rock specimen

• Fracture toughness according to the recommendations of ISRM

• Strength of rock Test

• Ultimate and breaking strength

• Data Acquisition

高温高压岩石三轴仪