Below-Ground Reinforced Concrete Pit
Open-top rectangular pit, lift pit or sump below ground: at-rest earth, groundwater and surcharge pressures, cantilever or propped walls, base slab with corner moments and toes, bending moment and shear force diagrams, flexural steel, shear without links, crack widths, flotation (UPL) and bearing.
Standard: BS EN 1992-1-1 §6.1, §6.2, §7.3
Clauses: EN 1992-1-1 §6.1, §6.2.2, §7.3.4, §9.2.1.1; EN 1997-1 §2.4.7.4, §9.5
A free online calculation to the Eurocodes with the UK National Annex. Every step shows the equation, the substituted values and the clause reference, and the result can be exported as a printable calculation sheet (PDF).
Topics covered
- Concrete
- Pit
- Lift Pit
- Sump
- Chamber
- Basement
- Retaining
- Groundwater
- Flotation
- Crack Width
- Bending Moment Diagram
- Shear Force Diagram
More Eurocode 2 calculations
- Reinforced Concrete Beam (Flexure & Shear) — BS EN 1992-1-1 §6.1, §6.2
- Slab Punching Shear Resistance — BS EN 1992-1-1 §6.4
- Rebar Shape Codes & Bar Lengths (BS 8666) — BS 8666:2020 & BS EN 1992-1-1 §8.3
Related calculations
- Structural Buoyancy (Anti-Flotation) Check — BS EN 1997-1 §2.4.7.4