OEM Soil Standard Electric Strain Direct Shear Apparatus Suppliers, Pricelist

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OEM Soil Standard Electric Strain Direct Shear Apparatus Suppliers, Pricelist

Soil Â direct shear apparatus is an experimental device used to determine the shear strength of soil, mainly used in the fields of geotechnical engineering and geological engineering. direct Shear Test soil Test Equipment helps determine the shear strength parameters of soil, such as internal friction angle and cohesion, by simulating the deformation and failure process of soil under shear force.

Instrument features:

1. Equipped with hand cranked cutting function, Direct Shear Apparatus can operate without affecting the testing process even in the event of a power outage.
2. Leverage ratio amplification The weight of weights and labor intensity
3. Compact structure, reliable and stable performance, easy to use
4. The instrument has added a reverse limit function for the shear box, which automatically stops when the shear box returns to the designated position, enhancing the protection function.
5. The LCD screen displays settings for cutting speed and cutting deformation.

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Product Description

Working Principle

1. Sample preparation: Load the soil sample into a shear box and apply a vertical load to simulate actual pressure.

2. Shear process: Apply horizontal shear force to cause shear deformation of the soil sample, and record the shear force and displacement.

3. Data analysis: Calculate the shear strength parameters of the soil based on experimental data and plot the shear stress-strain curve.

Working principle of Direct Shear Apparatus

Application Area

Geotechnical Engineering: Evaluating the stability of foundations, slopes, and retaining walls.
Geological Engineering: The study of the mechanical properties of soil and rocks.
Research and Teaching: Used for soil mechanics experiments and teaching demonstrations in academic environments.

Overview & Functions

The digital strain control direct shear instrument adopts electronic digital technology to transmit data. The soil test data processing and acquisition system software automatically collects, records, and stores test data in real-time, significantly improving work efficiency by eliminating manual data reading.

It is designed to determine the shear strength of soil by shearing specimens under different vertical pressures. Based on Coulomb's law, it calculates the shear strength coefficient, internal friction angle, and cohesion.

This apparatus is suitable for slow shear, fast shear, and repeated shear tests of soil.

Instrument Characteristics

The dedicated geotechnical test data acquisition system automatically collects and stores vertical displacement and force values.
Experimental process saves labor and time while improving overall efficiency.
Leverage ratio amplification optimizes the weight of weights and labor intensity.
Compact structure with reliable, stable performance and ease of use.
Reverse limit function for the shear box automatically stops when returning to the designated position, enhancing protection.
LCD screen displays clear settings for cutting speed and cutting deformation.
Equipped with a hand-cranked cutting function for operation during power outages.

Technical Parameters

Soil sample area	30cm² (diameter 6.18cm, height 2cm)
Leverage ratio	1:20
Vertical loading classification	50, 100, 200, 300, 400kpa
Digital dial gauge (sensor)	0-12.7mm
Large horizontal shear load	1.2KN
Shear rates	2.4mm/min, 1.2mm/min, 0.8mm/min, 0.4mm/min, and 5 speeds below 0.02mm/min (arbitrarily settable)
Handwheel rotation per turn	0.2mm
Power supply	220V ± 10%, 50HZ ± 2HZ, Power: 350w
Working environment	Temp: 20 ± 5 ℃, Humidity: 80% RH, no strong magnetic/vibration interference
Dimensions	1100mm (L) x 600mm (W) x 1150mm (H)

Frequently Asked Questions

What is the primary purpose of the Soil Test Direct Shear Apparatus?

The apparatus is used to determine the shear strength of soil, helping engineers calculate the internal friction angle and cohesion coefficients essential for construction stability.

Can the machine operate during a power failure?

Yes, the instrument is equipped with a manual hand-cranked cutting function, allowing tests to continue even if there is no power supply.

How is the test data recorded?

The system uses electronic digital technology and a dedicated data acquisition software to automatically collect, record, and store vertical displacement and force values in real-time.

What are the available shear rates for testing?

It offers multiple standard speeds: 2.4mm/min, 1.2mm/min, 0.8mm/min, 0.4mm/min, and five speeds below 0.02mm/min. Users can also set custom speeds as needed.

Does the instrument have safety protection features?

Yes, it includes a reverse limit function for the shear box which automatically stops the machine once the box returns to its designated position.

What environment is required for optimal operation?

The ideal working environment is a temperature of 20 ± 5 ℃ and a relative humidity of 80% RH, away from strong magnetic fields or vibration interference.