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SPECIAL-GROUTING-BASED GROUTING SYSTEM WITH ADJUSTABLE MOVING CAVITY PRESSURE AND GROUTING METHOD THEREOF
A grouting system with an adjustable moving cavity pressure. The grouting system includes a master grouting pipe and a plurality of grouting valve pipes connected to the master grouting pipe, each grouting valve pipe is in an annular space within a borehole wall, the grouting valve pipe includes a grouting valve pipe body, and a spraying valve port is on the grouting valve pipe body. A grouting pipe, an air injection pipe and a movable piston are inside the grouting valve pipe body. The air injection pipe is connected with the movable piston to apply an air pressure into the movable piston, and the movable piston applied with the air pressure expands in volume to form a closed cavity between a lower part of the movable piston and the grouting valve pipe body, so that grouting is performed according to the position of the movable piston.
SPECIAL-GROUTING-BASED GROUTING SYSTEM WITH ADJUSTABLE MOVING CAVITY PRESSURE AND GROUTING METHOD THEREOF
A grouting system with an adjustable moving cavity pressure. The grouting system includes a master grouting pipe and a plurality of grouting valve pipes connected to the master grouting pipe, each grouting valve pipe is in an annular space within a borehole wall, the grouting valve pipe includes a grouting valve pipe body, and a spraying valve port is on the grouting valve pipe body. A grouting pipe, an air injection pipe and a movable piston are inside the grouting valve pipe body. The air injection pipe is connected with the movable piston to apply an air pressure into the movable piston, and the movable piston applied with the air pressure expands in volume to form a closed cavity between a lower part of the movable piston and the grouting valve pipe body, so that grouting is performed according to the position of the movable piston.
SPECIAL-GROUTING-BASED GROUTING SYSTEM WITH ADJUSTABLE MOVING CAVITY PRESSURE AND GROUTING METHOD THEREOF
WANG SHIJUN (Autor:in) / FAN XUEFENG (Autor:in) / FU BINGBIN (Autor:in) / AN NING (Autor:in) / JIANG MINGJUN (Autor:in) / ZHANG ZHE (Autor:in)
29.09.2022
Patent
Elektronische Ressource
Englisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
GROUTING SYSTEM AND GROUTING METHOD BASED ON PRESSURE-ADJUSTABLE SPECIAL GROUTING MOVING CAVITY
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