Foundations

Foundations

1. Raft

   • Expensive
   • Large concrete slab covering whole ground floor plan
   • Whole load move as one
   • Low bearing capacity
   • Steel cage reinforcement - vital

2. Strip

   • More economic
   • Suitable for housing - low load bearing
   • Average-good bearing
   • Supports buildings load bearing walls

3. Pile

   • Piles poured/driven into ground
     • Tops tied into strip foundation
   • Low bearing capacity or where a good stratum of soil lies beneath the top stratum
   • Bridges, apartments