| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a grout pumping method and device capable of reducing pulsation by allowing grout to pass through a pump, an injection hose and a pulsation absorption part, and achieving the stable ground injection of the grout.SOLUTION: A grout pumping device for pumping grout via an injection pipe into the ground includes: a plurality of pistons 4 capable of performing reciprocating motions in accordance with the rotary drive of a drive part 2; a plurality of cylindrical bodies 3 disposed for each piston 4 for absorbing or discharging grout in or from the cylindrical bodies 3 in accordance with the reciprocating motions of the housed pistons 4; discharge ports disposed for each cylindrical body for discharging the grout discharged from the cylindrical bodies; and injection hoses for guiding the grout discharged from the discharge ports to the injection pipe.</p> |
