ABSTRACT
The paper presents the detection of soft soils boundaries using developed Ground Penetrating Radar (GPR) technique. These soils, characterized by small difference between the velocities of adjacent layers, make the detection of the time-distance curves, obtained from common midpoint CMP soundings, by conventional velocity spectrum analysis technique very complicating. The numerous number of possible positions of the curves cannot be reduced to realistic one in this case. To overcome this drawback, the general principles of the new technique eliminating the unacceptable values of rms velocities on the basis of Dix’s formula was proposed. This technique may contribute significantly in the development of new project solutions improving the bearing capacity of soft soils. Some results of the technique’s implementation on the case of Port Antioquia Survey, Colombia are summarized.
