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Grout mixer with pump for backfill behind precast concrete segments for the tunnelling project

2025-04-29 16:37:39

A grout mixer with pump for backfill is a specialized piece of equipment used in construction projects, particularly for filling voids or gaps with grout. The primary purpose of the grout mixer with pump is to inject grout (a mixture of cement, water, and sometimes additives) into the annular space between precast concrete segments. This prevents groundwater ingress, stabilizes the tunnel lining, and distributes loads evenly. Proper grouting seals gaps, preventing water from seeping into the tunnel, which could compromise structural integrity and safety. Grouting helps transfer loads from the surrounding ground to the tunnel lining, reducing stress concentrations on the segments.

Applications of grout mixer with pump:

Tunnel Lining: Fills annular gaps between precast concrete segments and the surrounding soil or rock.

Soil Stabilization: Injects grout to improve soil strength and reduce settlement.

Anchor Grouting: Fills drilled holes for rock or soil anchors, ensuring structural stability.

Underground Construction: Used in mines, subways, and foundation repairs.

Features of grout mixer with pump:

High-Pressure Pumping: The pump must be capable of delivering grout at high pressure to ensure it reaches all parts of the annular gap, even in tight or irregular spaces.

Adjustable Mixing Ratios: The mixer should allow for precise control of the water-to-cement ratio and the addition of additives (e.g., superplasticizers, accelerators, or retarders) to optimize grout properties for specific ground conditions.

Portability and Maneuverability: The equipment should be compact and easy to transport within the tunnel, especially in confined spaces.

Automated Controls: Advanced systems may include automated mixing and pumping controls to ensure consistent grout quality and flow rates.

Durability: The equipment must withstand harsh underground conditions, including moisture, dust, and vibrations.

For more information about grout mixer with pump for backfill behind precast concrete segments for the tunnelling project, please email us. As a grout mixer with pumpmanufacturer, OEM is available. Suitable grout unit and suitable solution will always provide. Email address: sales@leadcrete.com

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