Our Cone Penetration Testing CPT services determine the geotechnical engineering properties of soils and delineating soil stratigraphy. The CPT Survey can be deployed with different platform configurations to suit specific environments including over water. Using expert operatives and the latest all-digital cones, we offer variety of testing including:. From-surface and in-ground surveys for any UK land or shallow water site.
Static cone penetration test
Cone penetration test - Wikipedia
Read on for more details! Dynamic Cone Penetration DCP testing is used to measure the strength of in-situ soil and the thickness and location of subsurface soil layers. It may use the same equipment as traditional CPT, however testing procedure is different. Additionally, the obtained data consistency may be compromised in various ways, thus lowering the method's reliability. In its latest post, Vertek outlines the basic differences in equipment, testing procedures, quality of obtained data between the two in-situ testing methods. It also discusses the drawbacks of the DCP method and provides useful guidelines as well as the latest developments on getting more accurate and reliable data, when using the DCP method. Read the full article here!
Cone penetration test
The Digital Piezo Static Cone Penetrometer PCPT is a rugged and compact system; the analogue to digital conversion is performed down hole, with each cone possessing its own memory and identity that is automatically recognised when connected to the logging system. This is a compression cone, meaning the tip resistance and sleeve friction load cells are decoupled and measure independently; this ensures that the readings from the cone are more accurate than other cones. Accurate temperature compensation assures reliable performance in soft soils and also in a situation where there is a considerable difference between air temperature and ground temperature. The Gamma Cone measures variations in naturally occurring gamma radiation.
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 it 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. Common measurements being collected are cone tip pressure, sleeve friction, pore pressure and tilt angle.