grout pump with mixer for tunnel grouting

A high-speed grout mixer is a critical component in modern tunneling operations, especially for applications like backfill grouting, ground improvement, and sealing voids behind tunnel linings. When filling tunnels — particularly those constructed using Tunnel Boring Machines (TBM) or shielded tunnel boring machines — high-speed mixers ensure the rapid and consistent production of large volumes of pumpable, stable grout.

Grout mixer used for tunnel excavation application:
Ground Stabilization: Used to inject a stable grout mixture to improve the load-bearing capacity of weak soils and prevent ground settlement during tunneling.
Water Ingress Prevention: Essential for sealing voids and fractures in the rock formation to prevent water ingress, which can compromise the stability of the tunnel.
Rock Bolting and Anchoring: Grout is used to fill the spaces around rock bolts and anchors, enhancing their holding capacity and ensuring the structural integrity of the tunnel.
Void Filling: After excavation, grout is injected to fill voids and cavities, reducing the risk of collapse and ensuring a safe working environment.
Curtain Grouting: Creates a grout curtain around the tunnel to act as a barrier against groundwater, protecting the tunnel from water damage.

Grout equipment is designed specifically for tunnel grouting operations. These equipment are essential to ensure structural integrity and waterproofing during tunnel construction. Some common types of tunnel grouting equipment are detailed below:

As for the Injection grouting pump for sale Australia produced by us, double liquid grouting liquid could be injection at the same time.

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