Method for filling deformable karst cave
US11933178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2023 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Aug 25, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21F15/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention relates to method for filling deformable karst cave, and the steps are: penetrating a grouting pipe into an elastic silicone tube, penetrating the grouting pipe and the elastic silicone tube into a deformable bracket, and lowering into a karst cave; sealing the elastic silicone tube, injecting silicate resin materials into the grouting pipe, and injecting steel fiber reinforced grout to implement a “block stone-like” structure; sealing the elastic silicone tube, separating the “block stone-like” structure from the elastic silicone tube to complete a “block stone-like” structure; lowering the elastic silicone tube and the deformable bracket, sealing the elastic silicone tube, lowering the elastic silicone tube and the deformable bracket tore construct the “block stone-like” structure, and completing the filling. The present invention may effectively stabilize the karst cave, ensure safe tunnel construction and stable surrounding rocks, and improve engineering construction speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.