The behaviour of overconsolidated clayey soil

Abstract

Upto this time, the scientific approach to the study and analisys of soil mechanics was to understand and reasonably predict the behavior of clay using different types of tests. In this investigation, the behavior of normally consolidated and overconsolidated clays are evaluated with critical state theories. In this research, a series of undrained compression tests have been carried out on clayey soil, using triaxial testing apparatus. The specimen are first compacted by using proctor mold and then normally consolidated or overconsolidated before testing. The overconsolidation ratios were chosen. to be 5, 10, and 15. The relationship q' vs. p', q' vs.E, U vs. E, anq water content distribution in the specimen are tabulated and drown. The main result is that the water content of the shear surface increases in comparison to its surrounding and that there fore, the specimen fails, before it reaches the theoritical expected value.