Leaderboard

1: You can increase the bearing capacity by 33%.But this recommendation is reasonable for dense granular soils, stiff to very stiff clays or hard bedrocks; it is not applicable for loose soils susceptible to liquefaction, or increase in pore water pressure. 3: Yes, it is normal to get uplift. We use service combos for checking bearing pressure and strength design combos for the reinforcement in the raft. 4: If you have provided minimum reinforcement, and satisfied maximum spacing requirements of the code, you don't need to check crack widths. If more than 80 percent of your raft area satisfy the limit of bearing capacity then settlement wont be a problem. 5: One can neglect that localized increase in bearing pressure.