Ring Shearing Test Apparatus
It is used for investigating the soil characters of shearing strength and deformation. Set the thin ring specimen in each shearing ring at the upper and the lower. Keeping the vertical stress load, fix the upper. Then, execute the rotary shearing of the lower. It can make extreme big deformation over the maximum shearing strengthbecause of the rotary shering of the ring specimen. Especially,it is very suitable to measure residual strength of over consolidationclayfor thinking about"Big deformation in long term（for example, landslide, etc.）"

Ring Shearing Test Apparatus

It is used for investigating the soil characters of shearing strength and deformation.
Set the thin ring specimen in each shearing ring at the upper and the lower. Keeping the vertical stress load, fix the upper. Then, execute the rotary shearing of the lower.
It can make extreme big deformation over the maximum shearing strengthbecause of the rotary shering of the ring specimen.
Especially,it is very suitable to measure residual strength of over consolidationclayfor thinking about"Big deformation in long term（for example, landslide, etc.）"

Ring Shearing Test Apparatus　DTA-138

Feature
It can measure the Side Friction between specimen and ring accurately with taking ingenious measuring system .
In addition to, it can load and measure the stress accuratelybecause every rotary section takes Ball bearing system., etc.

Main Specification

Specimen Size

Dia. 150X Dia.100Xt20mm, Sectional area 98.16cm²

(or Dia.100×dia.60×t20mm Sectional Area　50.3cm²is possible at your request)

Shearing Torque

40 N-m

Consolidation Loading

500kPa

Rotatory Shearing Speed

2.0 - 0.004mm/min. at the specimen central diameter

Transducer

Shear Torque	2kN
Vertical displacement D.G. transducer	20mm 1/100
Side friction load cell	1kN
Vertical loading load cell	5kN

OPTION

Data logger

Specimen consolidation apparatus DAC-193

Specimen setting former