3.A building of dimensions 100 feet by 100 feet with a weight of 30,000 kips was built on a slab in an excavation 10 feet deep as shown below (assume

the excavation did not remain open long enough for rebound to occur). The clay layer under the building was initially normally consolidated. The building remained in place long enough for full primary consolidation to Occur. Subsequently the building was removed. Several years later a new structure of the same dimensions and weight was built at that same location also with a basement 10 ft deep. Evaluate the settlement at the center of the slab of this new building. Neglect settlement in sand and do not divide clay into sub layers. Hint: Draw your procedure on a graph of e vs. log o,'.

Fig: 1

Fig: 2