A Preliminary Method to determine DCP Rod Friction Correction in Tropical Soils
A Preliminary Method to determine DCP Rod Friction Correction in Tropical Soils
ABSTRACT: The Dynamic Cone Penetrometer (DCP) is a simple, portable and economical equipment that has been used in pavement application for the in-situ measurement of CBR. Recently its application as a site investigation tool where it is referred to as the Dynamic Probing Light (DPL) for simple structures is increasing. However, its widespread acceptance as a reliable site investigation tool in the ranks of the SPT depends on finding a method to measure and account for the rod friction component in the measured DPL values. This study therefore seeks to develop a simple but reliable field method of measurement of rod friction correction to be applied to measured DPL values for use in design. Two variations of the method were investigated. The assumptions underlying the methods are examined, the rod friction variations in the two methods compared and discussed. The preliminary comparison with existing correlations between NSPT and NDPL and the likely influence of the rod correction are discussed.
Thomas Adjei Adjetey; Samuel I. K. Ampadu; F. J. F. Ayeh; Frederick Owusu-Nimo; Frederick Charkley
18th African Regional Conference on Soil Mechanics and Geotechnical Engineering (ARCSMGE2024)
Behavior of soils, analysis and modeling
Contact Information
- Secretary General - Dr A M McNamara
- Email: [email protected]
- Phone: +44 20 7040 8154
- City, University of London
- Northampton Square
- London EC1V 0HB. United Kingdom