Hard rock tunnel boring machine combining microwave heating with high pressure water cutting for assisting in rock breaking
US12031437B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 10, 2021 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Jan 2, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D9/1066
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hard rock tunnel boring machine combining microwave heating with high pressure water cutting for assisting in rock breaking includes a tunnel boring machine body, a microwave heating assisted rock breaking system and a high pressure water cutting assisted rock breaking system, wherein the microwave heating assisted rock breaking system is arranged on the tunnel boring machine body, and is used for heating and cracking a rock; and the high pressure water cutting assisted rock breaking system is arranged on the tunnel boring machine body, and is used for performing hydraulic cutting on the rock. A rock breaking sequence lies in that the microwave heating assisted rock breaking system is used for heating and cracking the rock, then the high pressure water cutting assisted rock breaking system is used for performing hydraulic cutting on the rock, and finally, the tunnel boring machine body is used for squeezing and breaking the rock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.