Directional fracture grouting method with polymer for seepage control of dikes and dams
US8182178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2010 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Nov 30, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D3/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A directional fracture grouting method with polymer for seepage control of dikes and dams includes the steps of: arranging a plurality of directional fracture grouting holes at a predetermined distance along the axis of the dike or dam; forming the directional fracture grouting holes by pushing a special drilling tool; placing a hole-sealing grouting pipe and a fracture grouting pipe into each of the directional fracture holes; and injecting including the steps of firstly injecting a small amount of polymer material into the sealing-hole pipe, and secondly injecting predetermined amount of material into the fracture grouting pipe. Under the chemical reaction, the mixed material expands, fractures the soil along the guided directions, and forms a super thin polymer segment. Finally, the polymer segments are overlapped each other, and the seepage control system is constructed inside the dike or dam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.