D S Tolia, BSc, MSc (Geotech.Eng) (UK), AMIE. This paper was first published in GE’s October 1977 edition.
Site investigation is a scientific process, its main objective being to provide definite values of soil properties for the foundation designer and construction engineer, so that an economic and safe design can be prepared. For many years, plate loading tests and standard penetration tests have been used and they both yield dependable information. Field penetrometer methods offer considerable practical advantages, with results obtained insitu, quickly and inexpensively. These advantages permit testing in volume and, thereby, ensure a better evaluaition of any important consequences resulting from the non-homogeneity of most foundations on sandy soils.