Residual Ring Shear Testing System for Soils (SRS-150)

The GCTS Residual Ring Shear (SRS-150) is a fully automatic electro-pneumatic and servo-controlled testing system used for determination of drained residual strength of continually sheared soils.

The GCTS Residual Ring Shear (SRS-150) is a fully automatic electro-pneumatic and servo-controlled testing system used for determination of drained residual strength of continually sheared soils. The SRS-150 ring shear device was developed using the Harmonic Drive™ motor technology for true continuous shearing rate without inherent backlash found in gear assemblies of other ring shear apparatus. The Harmonic Drive™ shearing actuator allows for large range of shearing rates at very high resolutions with large torque capacity. The SRS-150 is capable of applying shearing rates ranging from 0.001 to 360 degrees per minute continuously with zero-backlash for replication of true in-situ strain rates during failure.

The SRS-150 is capable of performing “multi-stage” test where a sample is consolidated at a given pressure, sheared to its residual strength, consolidated to a new pressure and sheared again. This procedure allows for determination of the failure envelope using a single specimen. The device accepts 150 mm OD 100 mm ID samples for testing granular materials. The system components are conveniently placed inside the rolling cart for convenience, mobility and ease of specimen preparation.

 

Geotechnical Consulting & Test Systems (GCTS), USA

Geotechnical Consulting & Test Systems (GCTS), USA

Geotechnical Consulting and Testing Systems (GCTS) provides advanced testing solutions for Research in Geotechnical & Pavement materials. GCTS also helps in design of laboratory and in-situ testing apparatus and software ranging from modification and adaptation of existing apparatus to the purchase of new closed-loop computer-controlled systems. The company manufactures a full line of computer-controlled testing systems with either pneumatic or hydraulic loaders. Each system comes with a versatile software package which provides test control, data acquisition, data reduction, and graphing in one easy to learn Graphical User Interface.

 

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