Small-scale Direct Shear

Direct shear tests is an important in the case of Geotechnical Engineering (Soil Mechanics and Foundation) to determine soil strength parameters in terms of consolidated-drained (CD). In this test, first soil under the specific vertical stress become consolidated, then while stabilizing vertical stress, shear stress is set to speed, apply to soil sample until the sample is ruptured. The maximum shear stress for a specific vertical stress, gives the coordinates of a point. Tests are usually performed with three different vertical stress and thus coordinate system "shear stress - vertical stress" three points is obtained that draw the best line passing through the points, soil strength parameters of (C, Φ) are determined.

Direct shear test apparatus, which is manufactured by Soil Mechanic Industries of Iran Co., designed and produced accordance with international standards such as ASTM.

Standards:

ASTM D3080, BS EN 1377,

Technical Specifications:

Description	Direct Shear Apparatus 60×60, 100×100 mm Model DSH100	Direct Shear Apparatus 60×60, 100×100 mm Model DSH101
Ordering Code	SMSO-7100	SMSO-7101
Dimension (L×W×H)	90×31×135 Cm
Weight approx	110 Kg Without weights
Set of Weights	39Kg = 2×10Kg + 2×5Kg + 2×3Kg + 3×1Kg
Beam Ratio	1:1 , 1:10
Sample Size	60×60 mm , 100×100 mm
Load ring / Loadcell Capacity¹	200 Kg_f	500 Kg_f
Horizontal Dial Gauge / Horizontal Sensor Capacity	0-20 mm, 0.01	0-25 mm, 0.01
Vertical Dial Gauge / Vertical Sensor Capacity	0-10 mm, 0.01	0-10 mm, 0.01
Max. Horizontal Displacement	20 mm
Max. Horizontal Load	1000 Kg_f	1000 Kg_f
Max. Vertical Stress	10 Kg_f/Cm²	10 Kg_f/Cm²
Uploading Speed Range	0.001-9.999 mm/min	0.001-9.999 mm/min
Mini. Shear Speed	0.001 mm/min	0.001 mm/min
Max. Shear Speed	9.999 mm/min	9.999 mm/min
Power Supply	220 V, 260 W	220 V, 260 W
Data Logger Unit²	Have Not	Has It

Ability to change the capacity of load cell/force sensor according to buyer's requirements are available.
Data Logger Unit:

16 bit.
4 input channels.
Velocity of sampling: Up to 10 samples per second.
Reading and Recording software included.
Software of Analyzing results and Drawing necessary diagrams (Customized).

The other features of Direct Shear Apparatus:

Equipped with a keyboard and touch screen.

Automatic sensor-breakers for over limit displacement of the loading piston.

Capability of loading speed calibration by keyboard.

Capability of connecting to PC to troubleshooting the Set.

Special Capability of custom models:

Ability to display and print the process and test results without connecting to a computer.

Remote control possibility of devices.

Sampling and Shearbox Accessories

Description	Ordering Code	Weight approx gr	Outside Dimension mm	Inside Dimension mm	Material
Ø50 mm Shearbox	SMSO-7310			Ø50×20	Brass
Grooved Shear Plate	SMSO-7311				Brass
Mesh Shear Plate	SMSO-7312				Brass
Mesh Grooved Plate	SMSO-7313				Brass
Sampling Rammer	SMSO-7318		Ø50×130		Brass
Specimen Cutter	SMSO-7319		Ø55×20		Brass
60×60 mm Shearbox	SMSO-7320	3640	160×140×70	60×60×50	Brass
Grooved Shear Plate	SMSO-7321	330	60×60×11.5		Brass
Mesh Shear Plate	SMSO-7322	150	60×60×4.5		Brass
Mesh Grooved Plate	SMSO-7323	75	60×60×4.5		Brass
Sampling Rammer	SMSO-7328	625	60×60×130		Brass
Specimen Cutter	SMSO-7329	195	68×68×25	60×60×20	Brass
100×100 mm Shearbox	SMSO-7330	6670	160×146×71	100×100×30	Brass
Grooved Shear Plate	SMSO-7331	240	100×100×4.5		Brass
Mesh Shear Plate	SMSO-7332	485	100×100×6		Brass
Mesh Grooved Plate	SMSO-7333	230	100×100×4.5		Brass
Sampling Rammer	SMSO-7338	1340	100×100×130		Brass
Specimen Cutter	SMSO-7339	450	110×110×30	100×100×30	Brass
Saturated Boxes of Direct Shear	SMSO-7390	7210	200×240×90	185×150×60	Brass