Multi-wavefield seismic detection method and system based on construction noise of shield machine
US11644590B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2020 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Nov 3, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/1216
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multi-wavefield seismic detection method and system based on construction noise of a shield machine. Multi-wavefield seismic information such as a body wave and a surface wave formed during propagation of a seismic wave generated by excitation in a stratum is obtained by using noise information caused by the construction of a shield machine as a seismic source, a stratum velocity model along a tunnel is constructed through joint inversion, and reflection wave information or the like is used for migration imaging, to eventually implement relatively accurate detection of a geological condition in front of a tunnel face of shield construction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.