Title:
SHIELD SYNCHRONOUS DOUBLE-LIQUID GROUTING PROCESS
Document Type and Number:
WIPO Patent Application WO/2023/236250
Kind Code:
A1
Abstract:
The present invention relates to a shield synchronous double-liquid grouting process. The shield synchronous double-liquid grouting process comprises the following steps of: (1) putting bentonite, carrageenan, glucose powder, silica fume powder, diatomite and water into a liquid storage tank stirrer for stirring and mixing to prepare a liquid A; (2) injecting the liquid A into a trolley rotary stirring tank by means of a pressure injection pump for secondary stirring; (3) injecting water and sodium silicate into a rear trolley liquid storage tank for stirring and mixing to prepare a liquid B; (4) injecting the liquid A in the trolley rotary stirring tank and the liquid B in the rear trolley liquid storage tank into a mixing device by means of an injection pump to prepare mixed slurry; and (5) injecting the mixed slurry in the mixing device into a grouting pipeline, and filling a gap between a stratum and a duct piece through a grouting opening of the grouting pipeline. According to the synchronous double-liquid grouting process used by the present invention, the liquid A and the liquid B are respectively prepared outside a pit, and then the liquid A and the liquid B are respectively conveyed into the pit for mixing, so that the mixed slurry can be filled into the gap between the stratum and the duct piece at the highest speed.
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Inventors:
WANG QINGPING (CN)
ZHANG YANTAO (CN)
CHEN WEI (CN)
ZHANG YANTAO (CN)
CHEN WEI (CN)
Application Number:
PCT/CN2022/100358
Publication Date:
December 14, 2023
Filing Date:
June 22, 2022
Export Citation:
Assignee:
FUJIAN ZHONGTIAN TRAFFIC ENGINEERING TECH SERVICE CO LTD (CN)
International Classes:
E21D9/06; E21D11/10
Foreign References:
| CN104074530A | 2014-10-01 | |||
| CN110608042A | 2019-12-24 | |||
| CN103953365A | 2014-07-30 | |||
| CN112280909A | 2021-01-29 | |||
| CN213797330U | 2021-07-27 | |||
| CN114146485A | 2022-03-08 | |||
| CN110721613A | 2020-01-24 | |||
| CN114165244A | 2022-03-11 | |||
| JPH1181884A | 1999-03-26 |
Attorney, Agent or Firm:
GUANGZHOUJINGNUO INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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