Measuring device and method for horizontal dynamic impedance of specified foundation depth based on differential response analysis of pulse excitation
US11066805B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2018 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Dec 1, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01H15/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A measuring device and method for horizontal dynamic impedance of specified foundation depth based on differential response analysis of pulse excitation. The measuring method is realized based on the measuring device. Two rigid piles with different lengths are embedded into different foundation depths. Motion characteristics of the two rigid piles in the process of collision impact with the outside are different under the same pulse excitation. Dynamic impedance of specified foundation depth is deduced from the formula according to the differential response. Single-degree-of-freedom oscillators are arranged on the pile heads of the two piles, and strain gauges are arranged on the bottoms of the single-degree-of-freedom oscillators to obtain stress states of the single-degree-of-freedom oscillators, thereby calculating the relative displacements of the single-degree-of-freedom oscillators. This is simple in structure, reliable in measurement and convenient in data collection and processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.