Static Probing

Published: | Updated: June 22, 2020;

Definition - What does Static Probing mean?

Static probing is an intrusive site investigation method that is used for studying the soil below the surface. There are two types of probing methods namely, static probing and dynamic probing. These probing methods utilize a steel rod about 25mm in diameter that is driven into the ground to probe or sound.

The resistance to driving the rod, and the particles that stick to the rod when it is pulled out, indicates the properties of the soil.

Trenchlesspedia explains Static Probing

Static probing involves penetrating the soil using a rod attached with a steel cone. The cone is advanced into the soil using static push. To achieve the high pressure to drive the rod, equipment with high mass is required. The cone head is fitted with a sensor that records the driving resistance; this is possible because the rate and force of the drive are kept constant during the test. A friction jacket is fitted behind the cone and can be advanced independent of the cone.

An electronic piezometer is also attached to the driving assembly. This complete system is now capable of recording soil type variation, soil strength, and groundwater pressure. Additional tools allow soil samples to be recovered for inspection and testing.

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