Technical CAD sections showing two methods for basement underpinning (submuración) designed to handle hydrostatic uplift pressure (supresión). The drawing includes detailed cross-sections at a 1:5 scale, illustrating construction techniques used when building below the water table adjacent to existing foundations.
The first detail features a reinforced concrete underpinning wall integrated with a suppression slab. The second detail shows a masonry wall solution. Both sections specify comprehensive waterproofing layers, including rigid waterproof mortar (MCI), flexible asphalt membranes, and low-density polyethylene films to prevent moisture ingress and resist uplift.
Floor build-ups are clearly defined, showing pre-stressed hollow core slabs, leveled screeds, and finishes ranging from ceramic tile to carpet. Structural elements include existing run footings, new foundation shoes, expansion joints with expanded polystyrene, and reinforcement layouts. Detalle submuración de Hº y mampostería para caso de supresión.
