CONE PENETRATION TESTING (CPT)
What is the CPT
A 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 to determine the necessary construction requirements for infrastructure roadbeds, bridges, and 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.
CPT Advantages
- There are many reasons for the widespread use of the CPT test method. Probably the most important is the In-Situ measurement... it measures soil properties in the right environment; in the soil as it is, where it is.
- The real-time, on-site interpretation of logs can be used to better dial in the soil type, water table and soil parameters for engineering design – ultimately saving project cost.
- Additionally, faster production rates when compared to conventional drilling and sampling result in a more cost-effective operation.
Standard CPT Log
Standard CPT Log
Standard CPT Log
CPT Advancement
Standard CPT Log
Standard CPT Log
Geoprobe Advancement
Geoprobe Advancement
Geoprobe Advancement
SEISMIC COLLECTION
Geoprobe Advancement
Geoprobe Advancement
