Combined Shear and Triaxial System
The combined modular direct shear and triaxial test system is designed to determine the shear strength of intact or joint rock or concrete samples. Different sample sizes can be tested by our system, be they cylindrical, prismatic, cubical or irregularly shaped.
The high stiffness system with different accessories and options offers the possibility to perform a variety of tests with one single device.
- High stiffness robust loading frame with large testing area
- Precise force transducers to measure and control shear and normal stress
- Hydraulic power packs with high-quality noise protection, as well as emergency functions
- The shear boxes consist of a tilting free lower and upper shear frame, which is guided by linear bearings, a fixed upper shear frame and a guided load piston.
- High-speed, closed-loop control of load, displacement, position and volume or flow
- Possibility to apply different stress paths or strain rates load independent shear rates (shear stress optionally) via micro-processor controlled high quality servo-valve
- Suitable for precise direct shear and triaxial tests on rocks, sliding surfaces and building materials
Load type | servo-hydraulic |
Axial force | up to 5000kN |
Shear force | 100 - 1000 kN |
Specimen Size | 25 - 300 mm |
Cyclic Load | on request |
Or customized on request
GEOsys Software for user defined free programmable test standard procedures and complex test sequences by structured Windows operation on a graphic user interface.
Through a series of menus, this provides quick access to all the controls needed for test set ups and follows standard test sequences.
The software is able to create an unlimited number of test stages with interactive and calculated parameters for closed-loop, real-time control. An unlimited number of control and measuring channels can be simultaneously controlled
- ASTM D-5607
- ASTM D-7012-14
- ASTM D-7070-08
- JGS 2521-2009
- JGS 2531-2009
- JGS 2532-2009
- JGS 2533-2009
- JGS 2534-2009
- JGS 2541-2008
Standard Test Method for Performing Laboratory Direct Shear Strength Tests of Rock Specimens Under Constant Normal Force
Standard Test Methods for Compressive Strength and Elastic Moduli of Intact Rock Core Specimens under Varying States of Stress and Temperatures
Standard Test Methods for Creep of Rock Core Under Constant Stress and Temperature
Method for Unconfined Compression Test on Rocks
Method for Unconsolidated-Undrained Triaxial Compression Test on Rocks
Method for Consolidated-Undrained Triaxial Compression Test on Soft Rocks
Method for Consolidated-Undrained Triaxial Compression Test on Soft Rocks with Pore Water Pressure Measurements
Method for Consolidated-Drained Triaxial Compression Test on Rocks
Method for direct Shear Test on a Rock Discontinuity
- Land sliding
- Slope stability
- Deep excavations
- Buried structures
- Seismic investigations
- Embankment, dams and other earth structures
- Deep foundation on offshore and onshore