Drainage grouting pipe and method of use thereof
US11225768B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2021 |
| Grant date | Jan 18, 2022 |
| Priority date | — |
| Expiry date | Aug 27, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D2300/009
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Provided is a drainage grouting pipe and a method of use thereof. The drainage grouting pipe comprises a perforated steel pipe, a plurality of elastic anti-filtration geotextiles, a movable stopper, and a grouting pipe. The perforated steel pipe consists of a front conical tip, a middle grouting section, a rear hole-free section, and a steel pipe seal. The middle grouting section is provided with a plurality of grouting holes. The surface of the middle grouting section of the perforated steel pipe is seamlessly, and circumferentially wrapped by the plurality of elastic anti-filtration geotextiles, and gaps are formed between adjacent elastic anti-filtration geotextiles. Firstly, the geotechnical layer is drained by a pumping system, and then the grouting position in the geotechnical layer is located and controlled by pulling out the grouting pipe to control the plunging depth of the movable stopper, thus achieving the prevention and treatment of groundwater seepage damage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.