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Soil testing

DIRECT SHEAR TEST MACHINE



STANDARD: ASTM D3080, BS 1377:7, AASHTO T236 NF P094071-1/2

To determine the shearing strength of the soil using the direct shear apparatus.

In many engineering problems such as design of foundation, retaining walls, slab bridges, pipes, sheet piling, the value of the angle of internal friction and cohesion of the soil involved are required for the design. Direct shear test is used to predict these parameters quickly. The laboratory report cover the laboratory procedures for determining these values for cohesionless soils.

Strain controlled direct shear machine consists of shear box, soil container, loading unit, proving ring, dial gauge to measure shear deformation and volume changes. A two piece square shear box is one type of soil container used.

A proving ring is used to indicate the shear load taken by the soil initiated in the shearing plane.

DESCRIPTION

EDJ-1, SDJ-2 (Electric two-speed and three-speed)



Vertical load: 50KPa , 100KPa , 200KPa , 300KPa ,  400KPa
Lever ratio: 1:12
Level shear force: Max. 1.2KN
Sample area(cm2): 30
Shear rate(mm/min):  0.02, 0.8, 2.4
Power source: 220V±10%, 50Hz
Dimension(mm): 850  x 550 x 1100(Lx Wx H)
Weight: 40 Kg


DSJ-3(quadruplet) Electric shear test machine



Vertical load: 100KPa, 200KPa, 300KPa, 400KPa
Lever ratio: 1:12
Shear box quatity: 4
Level shear force: Max. 1.2KN
Sample area(cm): 30 x 2 H
Shear rate(mm/min): 2.4, 0.8, 0.1, 0.02
Power: <100W
Power source: 220V±10%, 50Hz
Dimension(mm): 680  x 740 x 1050(LxWxH)
Weight: 200 Kg


ZYY-3 (Duodenary) shear test machine



Vertical load: 400KPa, 300KPa, 200KPa, 100KPa, 50KPa
Lever ratio: 1:12
Max load: 1.2KN
Load method: Weight
Sample area(cm2): 30
Soil sample container quantity: 12, sample 36 at the same time
Dimension(mm): 760  x 880 x 1100(LxWxH)
Weight: 220 Kg(include weigths)


ZQB-4 (light weight and portable)



Soil sample area: 30cm2x 2cm(H)
Vertical load: 50KPa, 100KPa, 200KPa , 300KPa, 400KPa (hanger is first grade)
Lever ratio: 1:20
Level shear force: Max. 1.2KN
Sample area(cm2): 30
Power source: 220V±10%, 50Hz
Dimension(mm): 850  x 550 x 1100(LxWxH)
Weight: 40 Kg


AS-1 (Cross plate) shear test machine



Cross board dimension: Ф75×150 mm, Ф50×100 mm
Steel ring torsion:  80N.m
Torsion accuracy:  0.55N.m
Guide rod: Ф30 x 1040mm
Dimension(mm): 430  x 910 x 220 (Lx Wx H)
Weight: 40 Kg

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