Designed to characterize soil response under one-dimensional constrained simple shear for seismic, offshore, and transportation loading scenarios, quantifying cyclic strength, cycles-to-liquefaction, modulus reduction, and damping ratio.
Executes cyclic shearing in stress or strain control while maintaining constant volume for saturated specimens via active height control, enabling undrained behavior representation and reliable excess-pore-pressure equivalence.
Supports programmable loading scripts with amplitude, frequency, dwell/hold, ramp, and multi-stage sequences, enabling repeatable research workflows and project-specific protocols.
Provides a broad waveform set periodic and user-defined sequences to replicate regular and irregular field loading histories with precise synchronization across channels.
Automates pre-shear consolidation with incremental loading, creep/hold timing, and end-of-primary detection to establish well-defined initial effective stress conditions.
Acquires shear force and displacement, vertical load and displacement, and (optionally) pore water pressure with high resolution; software generates τ–γ loops, G/Gmax–γ and D–γ curves, CSR, and Nliq with cycle counting and peak/valley tracking.
Uses NGI-type rings and sand-tight membranes to test sands, silts, and clays; interchangeable rings allow specimen optimization for material type and research aims.
Built on a rigid, low-compliance frame with backlash-free drives and low-friction guidance to minimize parasitic forces and enhance repeatability across small- to large-strain ranges.
Integrates template-based setup, real-time plotting, and auto-report export (CSV/PDF) to streamline training, routine testing, and advanced research.
Incorporates safety interlocks, overload/overtravel protections, and soft/hard limits to protect specimens, sensors, and operators during high-cycle programs.
