DRTB-3000 is a new type of testing equipment which conforms to rock fatigue testing filed of triaxial testing equipment. This machine is mainly used for testing the mechanical properties of rock specimens of various sizes, including uniaxial, biaxial, triaxial.
standards as:
< JTG E41-2005 Highway Engineeering Rock Testing Regulations>
< GBT 50266-2013 Engineering Rock Mass Testing Norm>
< GB/T16826-2008 Electrohydraulic Servo Universal Testing Machine>
Its adopt to high-stiffness loading frame to execute large principal stress dynamic to disturb partial loading that performed by the level loading frame of intermediate principal stress and minimum principal stress with the electro-hydraulic servo loading of closed loop control.
Above frame systems need anti-seismic foundation infrastructure design. The hydraulic oil source has lower noise characteristics, and the hydraulic components have reliability and durability characteristics. The reference info of foundation: The stratum is sedimentary medium consolidated clay with 3 meters of thickness; Bearing capacity around 80kPa; Eliminating liquidation though slip casting and clear the pore water pressure methods. The foundation bed stiffness around 30000kN/m3.
- It can simulate the triaxial stress condition of 5000 m underground rock mass.
- O independent stiffness loading/unloading ability of 3 directions.
- The dynamic loading frame is arranged in the vertical direction, and the specimens is equipped with auxiliary lifting device , considering foundation shock absorption as well.
- Two orthogonal loading frames arranged on the horizontal plane can adopt the overall design structure. One of the horizontal actuators is hollow designed to match the Hopkinson compression bar system (functional interface reserved).
- The triaxial machine has the static loading capacity to obtain the full stress-strain curve capacity of hard rock
- One of the actuators has the dynamic loading function, or both dynamic and static loading functions at the same time.
- The one specified directions has the ability to unload quickly come into being the free surface.
- Size: 4 m×4 m×5.8 m；
- WT: 30T, ensuring the higher stiffness and intension.
- The parts adopt press forging and high strength prestressed bolt connection structure.
- Each of the loading subsystems keeping independence w/o interference.
- To meet the lower noise and power dissipation of flux and pressure when focus on all subsystems of triaxial hydraulic pressure at one time, with refrigeration function while long time working.
