Method for reducing blasting vibration of tunneling
US12287187B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2022 |
| Grant date | Apr 29, 2025 |
| Priority date | — |
| Expiry date | Jul 8, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42D3/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for reducing blasting vibration of tunneling includes the steps of: dividing the cutting holes into several groups according to different cutting methods; conducting layout and test blasting on one group of cutting holes; testing blasting parameters for the layout and test blasting; calculating an interval t; conducting layout and test blasting on at least two groups of cutting holes again; testing blasting parameters for the layout and test blasting of each group for the second time; taking the minimum interval t of each group as the interval for formal blasting of the remaining groups of cutting holes. The use of the characteristics of the wave in the invention can superpose the peaks and troughs of the vibration wave, and further cancel out mutually; reduce the peaks of the blasting vibration and fill the troughs of the blasting vibration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.