Abstract:
Evaluating the strength of soil foundation and is a critical requirement in every civil infrastructure. For
cohesive soils, the foundation soil strength and settlement are determined in terms of undrained shear
strength. In many cases, unconfined compressive strength (UCS) is used as an undrained condition of the
triaxial shear test. However, this test is time-consuming, it needs huge effort and needs care comparing to
the dynamic cone penetration test. Recently, dynamic cone penetration tests (DCP) have been using as an
alternative to predict subgrade strength parameters. In this study, DCP and atterberg limits are used to
predict UCS using simple and multiple regression analysis. Thirty tests were conducted at different depths
and locations in the town. The established equations are validated using sets of data. The result obtained
from validation shows that the established empirical correlation can be useful in the quick determination of
UCS when there is a financial limitation, lack of equipment, and time to conduct UCS in the current study
