Title:
TUNNEL WATER AND MUD INRUSH SEALING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/284896
Kind Code:
A1
Abstract:
Disclosed is a tunnel water and mud inrush sealing method. The method comprises the following steps: step S1, aligning a rubber sludge-stopping ring (1) with a water and mud inrush opening, and pressing tight the rubber sludge-stopping ring (1) such that the rubber sludge-stopping ring (1) is tightly attached to the inner wall of the tunnel, and the water and mud inrush opening is wrapped in a sealing space formed by the rubber sludge-stopping ring (1) and a support board (9); step S2, keeping the seal for a period, during which the mud water in the sealing space is filtered by a composite geomembrane filter, such that the mud and sand remain inside the sealing space and water is discharged through water drainage holes on the support board (9), thereby reducing the pressure inside of the sealing space. Thus a water and mud inrush opening can be rapidly sealed, reducing the possibility of a calamity. The present invention has a simple structure, and is easy to install and quick to implement.
Inventors:
LI HUI (CN)
HAN JIAPENG (CN)
LIU ZHUANG (CN)
HAN RUIMING (CN)
YU HONGTAO (CN)
ZHANG YE (CN)
LIU YONG (CN)
FENG ZHIQIANG (CN)
HAN JIAPENG (CN)
LIU ZHUANG (CN)
HAN RUIMING (CN)
YU HONGTAO (CN)
ZHANG YE (CN)
LIU YONG (CN)
FENG ZHIQIANG (CN)
Application Number:
PCT/CN2022/115767
Publication Date:
January 19, 2023
Filing Date:
August 30, 2022
Export Citation:
Assignee:
CHINA RAILWAY NO 9 GROUP NO 4 ENG CO LTD (CN)
CHINA RAILWAY NO 9 GROUP CO LTD (CN)
CHINA RAILWAY NO 9 GROUP CO LTD (CN)
International Classes:
E21D11/00
Foreign References:
| CN114060054A | 2022-02-18 | |||
| CN210127874U | 2020-03-06 | |||
| CN111810199A | 2020-10-23 | |||
| JP2020051243A | 2020-04-02 | |||
| JP6397542B1 | 2018-09-26 |
Attorney, Agent or Firm:
BEIJING HECHUANG ZHIXIN PATENT AGENCY CO., LTD (CN)
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