Earth dam protective covering
US4184786A · kind A · utility
13Cited by
12References
10Claims
0Family size
Inventor
Key dates
| Filing date | Mar 6, 1978 |
| Grant date | Jan 22, 1980 |
| Priority date | — |
| Expiry date | Mar 6, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A10/11
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Method and means for protecting earth dams from failure caused by overflow or internal (tunnel) erosion. The invention provides a barrier between the dam and the impounded water in the form of a water-impervious covering for the vulnerable surfaces of the dam. At the least the covering should sheathe the top and upstream face, but better protection is provided by extending the covering to the downstream surface. The covering is flexible to conform to the contours and surface irregularities of the dam, and anchoring means are provided to secure the covering to the dam and to prevent or minimize seepage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.