Thermal bleed for permafrost environments
US3976125A · kind A · utility
7Cited by
6References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 21, 1973 |
| Grant date | Aug 24, 1976 |
| Priority date | — |
| Expiry date | Sep 21, 1993 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B2204/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Trafficked surfaces built on foundations which remain substantially undisturbed during seasonal climatic cycles, particularly in permafrost and near permafrost regions where considerable disturbance of the ground beneath foundations is otherwise common. The foundations include combinations of insulation layers, heat sinks and/or thermal bleeds which dampen and prevent the cyclic climatic seasonal variations from affecting the earthen support under the foundations, in both cut and fill sections, and in embankments and backfills adjacent the sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.