Device for measuring the actual electrical resistivity of the ground and its utilization procedure

New and innovative aspects

The device presents several new and innovative aspects in the field of measuring electrical resistivity of the soil during dynamic penetration tests. These aspects include the integration of the device with the standard rod used in penetration tests, the use of an insulated plastic cylinder with metallic ring electrodes, the connection to the resistivity meter through a multi-wire cable, and the utilization of the resistivity meter's own battery as a power source. These features enable precise and efficient measurement of electrical resistivity at different depths, thus improving the characterization of the soil in this type of test.

Main advantages of its use

The main advantages of this device are as follows:

• Seamless integration: The device easily attaches to the standard rod used in dynamic penetration tests, allowing for easy implementation into existing equipment without requiring additional modifications.
• In-situ measurement: It enables the measurement of electrical resistivity directly at the location where the dynamic penetration test is being conducted. This provides a real-time and direct assessment of the soil's electrical properties.
• Adjustable precision and depth: The device allows for measurements at different depths by adjusting the rod. This provides a more detailed characterization of the soil along the penetration profile.
• Time and cost savings: By conducting the measurements during the dynamic penetration test, there is a reduced need for additional testing, optimizing equipment usage and resulting in significant time and cost savings.
• Compatibility with different electrode configurations: The device can be adapted to different electrode configurations, such as the Wenner or Dipole-dipole configuration, providing flexibility for the operator to choose the most suitable configuration based on the study's requirements.

Specifications

The device for measuring electrical conductivity is characterized by its robust construction, featuring an insulated plastic sleeve, embedded metallic electrodes, connection to the resistivity meter via a multi-wire cable, adaptability to the standard rod, and secure attachment with adhesive tape. These features ensure reliable operation and seamless integration with dynamic penetration equipment, enabling accurate measurements of soil electrical conductivity.

Applications

The main applications of this device are:

• Identification of soil physical properties and moisture indices.
• Detection of clay layers in granular soils.
• Determination of the groundwater level in the soil.
• Measurement of resistivity for the design, verification, and maintenance of grounding systems in electrical installations.
• Therefore, it is of particular interest in sectors such as geotechnical and subsurface exploration, civil engineering and construction, hydrogeology, and geophysics.

Intellectual property status

Protected by patent P202330366

Current development status

Prototype available for demonstration.

Desired business relationship

Trade Agreement, License Agreement, Technical cooperation: further development, Technical Cooperation: testing of new applications; Technical Cooperation: adaptation to specific needs.

Intellectual property status

• Patent already applied for
• Patent application number :P202330366
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  https://www.ubu.es/otri-transferencia/propiedad-industrial-e-intelectual/patentes-y-modelos-de-utilidad-de-la-ubu/164-p202330366-dispositivo-para-medir-la-resistividad-electrica-real-del-terreno-y