Title:
DRAINAGE SYSTEM AND DRAINAGE METHOD FOR USE IN DIGGING PROCESS OF ULTRA-DEEP VERTICAL SHAFT
Document Type and Number:
WIPO Patent Application WO/2023/141790
Kind Code:
A1
Abstract:
A drainage system for use in a digging process of an ultra-deep vertical shaft. The drainage system comprises a first pump (8) for pumping water out from a working face of a vertical shaft. A water receiving station (1) is arranged on a wall of the vertical shaft; a water storage compartment (4) for storing the water from the working face of the vertical shaft is arranged in the water receiving station (1); and a second pump (5) for pumping the water in the water storage compartment (4) and conveying the water to the outside of the vertical shaft is also arranged in the water receiving station (1). The drainage system further comprises a water tank (2), which is arranged on a hanging plate (7) in the vertical shaft, and a third pump (3) for pumping the water in the water tank (2) and conveying the water to the water storage compartment (4), wherein the water tank (2) is used for receiving the water, which is pumped by the first pump (8), from the working face.
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Inventors:
ZHANG XIN (CN)
LI GENQIAO (CN)
DONG XIAOHUI (CN)
LI GENQIAO (CN)
DONG XIAOHUI (CN)
Application Number:
PCT/CN2022/073890
Publication Date:
August 03, 2023
Filing Date:
January 26, 2022
Export Citation:
Assignee:
CHINA RAILWAY 18 BUREAU GROUP CO LTD (CN)
International Classes:
E21D1/00; E21F16/00
Foreign References:
| JP2001303882A | 2001-10-31 | |||
| CN214944420U | 2021-11-30 | |||
| CN107829745A | 2018-03-23 | |||
| JPH1181852A | 1999-03-26 |
Attorney, Agent or Firm:
SIMBA IP LAW FIRM (CN)
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