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A platform for research: civil engineering, architecture and urbanism
Reverse pressing type sealing grouting preserved hole sealing and blocking method
The invention relates to the field of civil engineering, and discloses a reverse pressing type sealing grouting preserved hole sealing and blocking method. The method comprises the following steps that S, the upper end of a preserved hole is provided with a top sealing and blocking plate, and the lower end of the preserved hole is provided with a bottom sealing and blocking plate, wherein a grouting hole and an exhaust hole are formed in the bottom sealing and blocking plate; S2, an exhaust pipe is inserted into the exhaust hole from bottom to top, in addition, the upper end of the exhaust pipe approaches to the lower surface of the top sealing and blocking plate, the lower end of the exhaust pipe is connected with an exhaust valve, the upper end of the grouting pipe is connected with a grouting hole, a grouting valve is connected with the lower end of the grouting pipe, and the grouting valve is connected with a slurry supply pipe of grouting equipment; S3, the grouting equipment, the exhaust valve and the grouting valve are started, curing agents are injected into the preserved hole, when the exhaust valve starts to overflow slurry, the exhaust valve is slowly closed, a pressure meter of the grouting equipment is observed, the pressure is maintained for a period of time according to the designed pressure requirement, the grouting valve is closed, and the grouting is completed. The difficult construction problem for sealing and blocking the preserved hole at the inner side of an underwater sink pipe is solved, and the construction safety risk is reduced.
Reverse pressing type sealing grouting preserved hole sealing and blocking method
The invention relates to the field of civil engineering, and discloses a reverse pressing type sealing grouting preserved hole sealing and blocking method. The method comprises the following steps that S, the upper end of a preserved hole is provided with a top sealing and blocking plate, and the lower end of the preserved hole is provided with a bottom sealing and blocking plate, wherein a grouting hole and an exhaust hole are formed in the bottom sealing and blocking plate; S2, an exhaust pipe is inserted into the exhaust hole from bottom to top, in addition, the upper end of the exhaust pipe approaches to the lower surface of the top sealing and blocking plate, the lower end of the exhaust pipe is connected with an exhaust valve, the upper end of the grouting pipe is connected with a grouting hole, a grouting valve is connected with the lower end of the grouting pipe, and the grouting valve is connected with a slurry supply pipe of grouting equipment; S3, the grouting equipment, the exhaust valve and the grouting valve are started, curing agents are injected into the preserved hole, when the exhaust valve starts to overflow slurry, the exhaust valve is slowly closed, a pressure meter of the grouting equipment is observed, the pressure is maintained for a period of time according to the designed pressure requirement, the grouting valve is closed, and the grouting is completed. The difficult construction problem for sealing and blocking the preserved hole at the inner side of an underwater sink pipe is solved, and the construction safety risk is reduced.
Reverse pressing type sealing grouting preserved hole sealing and blocking method
YANG RUNLAI (author) / MENG FANLI (author) / HUANG WEIMIN (author) / KONG LINGLEI (author) / WU FENGLIANG (author) / ZHANG YIGE (author) / LIU HAOBIN (author) / JIN SHENG (author) / LIU YAPING (author) / ZHANG DUAN (author)
2015-06-03
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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