Cone Penetration Test (CPT) is commonly used to determine the subsurface stratigraphy in situ (in place) and to estimate geotechnical parameters of the materials present. Geotechnical engineers typically use a CPT test to determine the necessary construction requirements for infrastructure – roadbeds, bridges, buildings. Due to the sensitive electronics inside the cone, it must be pushed to depth by static push methods. 

The CPT test method consists of pushing an instrumented cone into the ground at a controlled 2 cm/sec push rate. Common measurements being collected are cone tip pressure, sleeve friction, pore pressure and tilt angle. Additional sensors can be added like seismic, or other geo-environmental logging tools.

Cone Penetration Testing (CPT) is a fast, reliable, and efficient method used to determine the geotechnical properties of soils in situ. It plays a crucial role in site investigation and foundation design.

CPT involves pushing a cone-shaped probe vertically into the ground at a constant rate. The equipment measures various parameters such as: