Cantilever and propped basement walls, base slabs and waterproofing checks per IS 456, IS 3370, ACI 318 and Eurocode 2.
Design watertight basements end-to-end: earth pressure on retaining walls, hydrostatic uplift on the base slab, crack-width control to IS 3370 and a buoyancy stability check that accounts for the weight of the structure above.
Switches automatically between cantilever (active) and propped (at-rest) wall conditions based on top-level support.
Compares hydrostatic uplift to the dead weight of the basement plus structure above — flags floatation risk before construction.
Tighter crack-width limits for water-retaining structures, computed from steel stress and bar spacing.
Common detail diagrams for kicker, construction joint, and water-stop placement included in the report.
Wall height, slab thickness, water table depth, surcharge and soil unit weight.
Cantilever or top-propped — the analysis switches between active and at-rest pressure automatically.
Get steel demand at heel, toe and mid-height with bar spacing tuned to IS 3370 crack-width limits.
Stability factor against floatation is reported alongside reinforcement, then exported as PDF + BBS.
Cantilever walls on the boundary, base slab with light hydrostatic pressure.
Propped walls between floor slabs and a thicker base raft to resist deeper water table.
Floatation governs — the buoyancy check determines whether tension piles or extra dead weight are required.
Combined raft + retaining wall design for plot-line developments.
Three engineering cases with the inputs and expected results. Open one to see exactly what to type into the calculator.
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