Foundation raft for supporting a structure
US5189855A · kind A · utility
6Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1992 |
| Grant date | Mar 2, 1993 |
| Priority date | — |
| Expiry date | Mar 12, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D27/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention provides a foundation raft for supporting a structure such as a low rise building on soil which is prone to heaving or settling. The raft has a pair of foundation slabs, of set cementitious material which are spaced apart by a plurality of upwardly extending webs. The webs are fast with the slabs. Each slab has a thickness A of 50-200 mm; the slabs are spaced apart by a spacing B of 100-1500 mm; and each web has a thickness C of 0.2-400 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.