ABSTRACT

Consolidation settlement is a major concern in designing foundations resting on clayey soil. Under a given load its value may vary from place to place depending on different parameters like loading history, in-situ water content, clay content, plasticity, etc. Again for the same site if the depth of compressible layer below the foundation is different, the expected settlement will also be different. In such a situation, geophysical tests are proven to be more reliable, easy and quick than the conventional borelog survey. The bore log survey at one site at Silchar showed possibility of differential settlement if the depth of foundation is kept constant for all the footings. The MASW test clearly supported the apprehension