The plunger grout pump for tunneling is a core piece of high-pressure grouting equipment specifically designed for tunnel construction; it ensures the stable delivery of various engineering slurries—such as cement and bentonite slurries—and meets the requirements of grouting operations throughout the entire tunneling process. Applications for the plunger grout pump: Synchronous and secondary grouting behind shield tunnel segments to fill the gap between segments and the surrounding ground, thereby controlling surface settlement Pre-grouting at the tunnel face to reinforce fractured surrounding rock, seal off groundwater, and prevent sudden water or mud inrushes Repairing cracks in subway tunnel segments and filling voids behind the lining to enhance overall structural stability Grouting for slope anchor bolts and fore-poling (small conduit) pre-support at tunnel portals to stabilize loose ground at the entrance/exit
This integrated grouting plant is specifically designed for shield/TBM tunnel segment lining. It combines a high-speed grouting tank, a grout storage and mixing tank, and a high-pressure grouting pump into one unit. During tunnel excavation, it prepares cement/bentonite grout to fill the annular gap (annular gap) between the lining segments and the surrounding rock.
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