What does CPT stand for?

The investigation involves drilling about 15 bore holes and making 30 cone penetration tests to sample the seabed 40m below the sea floor.

A variety of well-known prediction methods have been incorporated into the program, including (i) soil mechanics based formulae; (ii) direct and indirect cone penetration test (CPT) based methods with and without accounting for scale effects of the cone on pile base capacity; and (iii) a new CPT-based method that considers the effects of "critical depth" and shaft resistance distribution, although the method has only been calibrated for relatively short piles.

The remaining papers are presented in sections covering computed tomography and digital imaging for the internal characterization of geomaterials, wave propagation techniques for the evaluation of properties and processes, seismic geophysical techniques for construction characterization and modeling, cone penetration test methods, and other in situ methods and numerical modeling.

Using the cone penetration test (CPT) data and the earthquake loading information, which includes the magnitude and peak ground acceleration, collected from the web-based database provided by USGS National Seismic Hazard Mapping Project, the liquefaction potential and the probability of liquefaction-induced ground failure of each site in the Charleston quadrangle can be calculated.

Drillings to collect core soil samples and cone penetration tests (CPT) will be performed over the next three weeks along the east side levees of the Sacramento River from Freeport, south of the Pocket area, to Discovery Park, north of downtown Sacramento.