Outline

---

The cone penetration test (CPT) is a common in situ testing method used to determine the geotechnical engineering properties of soils and assessing subsurface stratigraphy. It involves pushing a standard still into the ground at a standard velocity of 1 to 2 cm/s and recording data at regular intervals during penetration. The typical CPT probe measures the stress on the tip, the sleeve friction and the porewater pressure. Some equiped CPT probles are also able to measures shear wave velocity and temperature.

Description and test procedure

---

1. General description of Cone Penetration Test,The Center for Public Environmental Oversight (CPEO)
2. Detailed description of Cone Penetration Test, parameters and sample Logs,J David Rogers, Lecture notes, Advanced Engineering Geology & Geotechnics, Missouri University of Science and Technology
   
3. Cone Penetration Test on Wikipedia
   
4. Simple illustration of description of CPT procedure with photos,R. W. Boulanger, University of California at Davis