Triaxial Device with CD, CU, UU Attachments (Digital)

Description

1. Introduction

The Triaxial Device with CD, CU, UU Attachments (Digital) is a state-of-the-art geotechnical testing system designed for conducting Consolidated Drained (CD), Consolidated Undrained (CU), and Unconsolidated Undrained (UU) triaxial tests. These tests are critical for determining the shear strength, deformation properties, and stress-strain behavior of soils, which are essential parameters for geotechnical design, such as foundation assessment, slope stability analysis, and earthworks construction.

This device is widely used in civil engineering, geotechnical research, environmental engineering, and construction industries for assessing soil stability and understanding how soil behaves under various loading conditions. Its versatility in testing a range of soil types and its ability to handle various testing modes make it a go-to tool in laboratory settings for geotechnical investigations.

2. Key Features and Specifications

Technical Specifications:

• Load Capacity:
  • Maximum axial load: 100 kN (with high-resolution digital load cells).
• Pressure Range:
  • Confining pressure (range): 0 – 1000 kPa.
  • Pore pressure range: 0 – 500 kPa (Digital pressure transducers).
• Sample Compatibility:
  • Compatible with cylindrical soil samples from 38 mm to 100 mm in diameter, customizable for non-standard sizes.
• Digital Measurement:
  • Digital readout of axial deformation and confining pressure for precise data logging.
  • Resolution: Axial deformation is measured to 0.001 mm, and load readings are accurate to 0.1 kN.
• Control System:
  • Digital controllers for axial stress, pore pressure, and confining pressure.
• Frame Dimensions:
  • Approximate footprint of 800 x 500 x 700 mm (L x W x H) for space-efficient operation.
• Material:
  • Constructed from high-strength stainless steel and aluminum for long-term durability.

Key Features:

1. Multifunctional Test Modes (CD, CU, UU):
   • The device supports three critical test modes, providing comprehensive analysis of soil behavior under varying conditions of consolidation and drainage.
2. Digital Data Acquisition:
   • The integration of digital sensors and data logging software ensures that measurements are highly accurate and can be stored for further analysis or reporting.
3. High-Resolution Sensors:
   • Equipped with advanced load cells and digital pressure transducers for precise measurement of axial and confining pressures, as well as pore water pressure.
4. Automated Control System:
   • The fully automated control system for pressure and deformation allows for enhanced accuracy, consistent testing conditions, and reduced operator errors.
5. User-Friendly Interface:
   • The digital interface is intuitive, providing quick access to test parameters, live data feedback, and test progress, ensuring streamlined operation in the lab environment.

3. Usage and Benefits

Step-by-Step Usage:

1. Sample Preparation:
   • Trim the soil sample to the required dimensions and place it in the triaxial chamber, ensuring proper alignment and sealing.
2. Setup:
   • Connect the load frame, pressure lines, and digital sensors to the sample. The user can choose between CD, CU, or UU test modes based on project requirements.
3. Pressure Application:
   • Set the confining pressure using the digital control panel and apply the axial load incrementally during the test. The device automatically adjusts pore pressure in CU tests, while the UU test mode applies undrained conditions.
4. Monitoring and Data Logging:
   • The digital system provides real-time readings of load, deformation, and pressure values, which are logged automatically for future analysis.
5. Result Analysis:
   • Once the test is completed, the software generates a full report with stress-strain curves and soil strength parameters, including cohesion, internal friction angle, and undrained shear strength.

Advantages:

• Improved Accuracy: Digital sensors provide precise, real-time data with higher resolution than analog systems.
• Enhanced Efficiency: Automated pressure and load control minimize operator involvement and potential errors, resulting in faster testing times.
• Long-Term Durability: The use of high-quality materials ensures longevity, even under continuous use in demanding laboratory settings.
• Comprehensive Testing: The versatility to perform CD, CU, and UU tests allows the user to assess various soil conditions in one device.
• Ease of Operation: The intuitive digital interface and automated functions reduce the complexity of setup, making it suitable for both experienced and novice users.

Industry-Specific Solutions:

• For geotechnical investigations: Accurately determine shear strength and deformation properties of soil for foundation design and earthworks.
• For slope stability: Reliable data to assess soil behavior under stress, critical for evaluating the risk of landslides or slope failures.
• For construction: A crucial tool for engineers working on the construction of roads, buildings, dams, and other large infrastructure projects, where soil strength plays a major role in design.

4. Applicable Standards and Certifications

Standards Compliance:

• ASTM D2850: Standard Test Method for Unconsolidated-Undrained Triaxial Compression Test on Cohesive Soils.
• ASTM D4767: Standard Test Method for Consolidated-Undrained Triaxial Compression Tests.
• ISO 17892-9: Geotechnical investigation and testing – Consolidation properties.
• BS 1377: British Standard for Soil Testing, relevant sections for triaxial testing.

Certifications:

• ISO 9001: Quality management system certification, ensuring manufacturing excellence and product consistency.
• CE Mark: Certification indicating that the device complies with European health, safety, and environmental protection standards.
• Calibration Certification: The device undergoes rigorous calibration to ensure accuracy and reliability in test results.

5. Maintenance and Durability

Maintenance Requirements:

• Routine Cleaning: Ensure the triaxial chamber and components are cleaned with distilled water after each test to prevent sediment build-up.
• Seals and O-rings: Inspect and replace seals and O-rings as needed to maintain airtight pressure conditions and avoid leaks.
• Load and Pressure Calibration: Regularly check and recalibrate load cells and pressure transducers to maintain precision.
• Inspection: Perform periodic inspections on digital sensors and connections to ensure consistent functionality.

Durability Features:

• Corrosion Resistance: Stainless steel frame and components are resistant to corrosion, ensuring long-term performance.
• High-Strength Components: The device is designed to handle high-pressure and high-load conditions, guaranteeing reliability even in rigorous testing environments.
• Robust Digital Sensors: The digital sensors are engineered for stability and longevity, providing accurate measurements over many cycles of use.

6. Optional Accessories or Customization

Optional Accessories:

• Pore Pressure Measurement System: Add-on to measure the pore water pressure during CU tests for more comprehensive soil analysis.
• Additional Sample Molds: Custom molds for testing non-standard sample sizes to accommodate specific project requirements.
• Advanced Data Software: Optional software for more in-depth data analysis, providing graphical representations and further insight into soil behavior.

Customization Options:

• Load Cell Capacity: Custom load cells for higher axial loads, suited for specific applications or large sample testing.
• Software Integration: Ability to integrate with third-party software for data management and reporting purposes, offering flexibility for specific laboratory requirements.

7. Why Choose Triaxial Device with CD, CU, UU Attachments (Digital)?

The Triaxial Device with CD, CU, UU Attachments (Digital) is the optimal choice for professionals requiring precise, efficient, and versatile soil testing equipment. Its ability to handle multiple test types (CD, CU, UU) in a single system makes it a valuable asset for geotechnical laboratories, research institutions, and engineering firms.

Key Selling Points:

1. Versatility: Conduct CD, CU, and UU triaxial tests with one device, providing flexibility for various soil analysis needs.
2. Digital Accuracy: Digital sensors and real-time data logging ensure highly accurate measurements for reliable results.
3. Automation: The automated control system reduces manual intervention, increasing testing speed and minimizing operator error.
4. Durability and Reliability: Built with high-quality materials for longevity, ensuring consistent performance across thousands of tests.
5. Compliance with Standards: Meets international testing standards, providing confidence in the device’s adherence to industry norms.