Foundation treatment method for piling foundation structure by penetrating hardpan layer
US10781567B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2019 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Oct 9, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D27/525
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A foundation treatment method for piling a foundation structure by penetrating a hardpan layer, i.e., a Deep Slurry Mixing method, comprising following steps: disturbing, by a mechanical device, a location where the foundation structure is to be piled, so that the mechanical device penetrates the hardpan layer of a natural foundation; then injecting clay slurry into the hardpan layer of the natural foundation by a pumping device, an improved foundation is formed after mixing; and piling the foundation structure. The method can change soil property of the original natural foundation, break the hardpan layer, reduce piling resistance of the steel plate cylinder or similar foundation structure, reduce uneven force during the piling process and improve driveability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.