Method and system for determining in real time bearing capacity of foundation tamped by high-speed hydraulic tamper
US11384504B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2019 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Mar 20, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D2600/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and system determines in real time the bearing capacity of a foundation tamped by a high-speed hydraulic tamper. Four wireless acceleration sensors are arranged uniformly along tamping plate edges, sensor position tamping points are determined; the soil is tamped, the plate peak acceleration slows, tends to, and reaches stabilization in a range, a relationship curve between the tamping number and plate peak acceleration is determined; different loads are applied to the foundation to obtain corresponding settlements, coordinate axes are established, points are drawn according to each test data group and sequentially connected with a smooth curve to obtain a settlement-load curve, and the curve is fitted; a tamping number and foundation bearing capacity relationship is obtained; the two relationship curves are combined to obtain a relationship curve, and the foundation bearing capacity magnitude at a certain moment during the tamping operation is determined by using the acceleration index.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.