-GROUND IMPROVEMENT & TUNNEL SUPPORT EQUIPMENT
Grouting Injection Pump
- High-Pressure Injection up to 100 bar
- Cement & Chemical Grout Compatibility
- Manual & Automatic PLC Control
Grouting Injection Pump
The Grouting Injection Pump is designed to fill voids, fractures, and gaps behind tunnel segments, stabilizing loose soil and consolidating weak formations behind the TBM shield. By injecting cement slurry or chemical grout under controlled pressure, this system plays a vital role in maintaining ground stability and long-term tunnel integrity.
- Applications
- Behind-the-Shield (Backfill) Grouting
- Loose & Weak Soil Stabilization
- Annular Gap Sealing Behind the TBM Shield
- Foundation & Tunnel Lining Consolidation
- Technical Specifications
| Parameter | Value |
|---|---|
| Injection Pressure | 10 to 150 bar |
| Flow Rate | 50 to 200 L/min |
| Pump Type | Double Piston / Screw |
| Grout Type | Cement / Chemical Grout |
| Control System | Manual / Automatic PLC |
- Key Features & Benefits
- Accurate injection pressure regulation guarantees complete void filling without disturbing surrounding ground or damaging segments.
- Provides immediate ground support behind the shield, keeping TBM advance safe and continuous.
- Timely backfill grouting minimizes ground loss and prevents settlement above the tunnel alignment.
- Handles both cement and chemical grouts, adapting to diverse ground conditions and project specifications.