Method of constructing underground gallery by using pneumatic transfer system and stratum disposal method
US7063657B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2002 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Nov 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21F9/34
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of constructing underground galleries using a pneumatic transfer system and a stratum disposal method are provided, wherein in constructing a disposal gallery of a stratum disposal site and tunnels such as mountain tunnels or in performing stratum disposal of waste matter, the carrying-out of excavation chips or the like, the carrying-in of materials and equipment or the like and the carrying-in and positioning of waste matter may be effected safely, quickly and reliably at low cost, and the buffer material quality for waste matter may be secured. In construction, an air carrying pipeline (10) is used while extending the air carrying pipeline (10) downward as desired during excavation of a vertical shaft (2) so as to carry out vertical shaft excavation chips (a) to the ground and carry in materials and equipment including vertical shaft spray concrete (b) to the underground site. Alternatively, the vertical shaft itself is used as the air carrying pipeline (10), and by using the air carrying pipeline (10) extending from the vertical shaft (2a) to an underground gallery (3), excavation chips (a) from the underground gallery (3) are carried out to the ground and materials an…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.