The filter is usually located either on the cone tip the so-called U1 positionimmediately behind the cone tip the most common U2 position or behind the friction sleeve U3 position. The early applications of CPT mainly determined the soil geotechnical property of bearing capacity. In general it was determined that soil classification from cone data agreed well with classifications from core samples. Pore water pressure data aids determining stratigraphy and is primarily used to correct tip friction values for those effects. Today, the CPT is one of the most used and accepted soil methods for soil investigation worldwide. Do you enjoy reading reports from the Academies online for free?
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Cone penetration testing in tropical residual soils
Close Go to Workspace. Correspondingly, mea- sured porewater pressures depend on the position of the fil- ter element and groundwater level. In general it was determined that soil classification from cone data agreed well with classifications from core samples. The National Academies Press. Using the same CPT sounding presented in Figures 23 and 26, the P-Class approach has been applied to determine the probability distributions of sand, silt, and clay fractions with depth, as shown in Figure 27 with good results.