Ultra-long tunnel sewage disposal, separation and drainage structure suitable for cold regions
US11753937B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2020 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Jun 18, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21F17/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention discloses an ultra-long tunnel sewage disposal, separation and drainage structure suitable for cold regions, comprising: a tunnel portal section drainage structure and a tunnel body section drainage structure and an out-tunnel clear water ditch, an out-tunnel deep-buried ditch, an out-tunnel sewage ditch and a clear water tank; the tunnel portal section drainage structure comprises a central ditch and a side sewage ditch A, the central ditch is deeply buried in the position, lower than the freezing depth, of a tunnel portal section of the main tunnel, and the side sewage ditches A are arranged on both sides of the tunnel portal section of the main tunnel; the tunnel body section drainage structure comprises a side clear water ditch and a side sewage ditch B, and the side clear water ditch and the side sewage ditch B are arranged on both sides of the tunnel body section of the main tunnel. The structure has the advantages that separation and discharge treatment of clear water and sewage during tunnel construction and operation is realized, and high environmental requirements are met; the tunnel portal section and the tunnel body section are separately provided with a d…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.