Tunnel & Underground Grouting Solution

Grouting is a critical step in tunnel construction and underground engineering. It fills voids, consolidates surrounding rock, and ensures the integrity of prestressed concrete structures — delivering safety, durability, and long-term performance.

✓ Full void filling

✓ Ground consolidation

✓ Water shutoff & sealing

✓ Bond integrity

✓ Extended durability

Applications

1. Tunnel Lining Post-Tensioning Grouting

Complete filling of tendon ducts after tensioning to ensure bond, corrosion protection, and duct system sealing.

2. Rock Anchoring & Ground Consolidation

Grouting transfers load from anchors to surrounding rock, providing immediate face stabilization and reinforcement during excavation.

3. Precast Tunnel Segment Grouting

Fills annular voids between TBM segments and ground — controls settlement and creates a watertight lining system.

4. Backfill Grouting

Evenly distributes ground pressure behind linings and walls, preventing localized overloading in soft ground tunnels and caverns.

5. Joint & Crack Sealing

Seals joints, cracks, and penetrations to prevent water ingress and maintain long-term structural integrity.

6. Anchor & Tendon Grouting

Cementitious grout injection through anchor tubes bonds tendons to surrounding ground, creating secure and durable anchorage.

Core Product Range

LGB Series Grouting Pumps

Screw-type pumps delivering continuous, pulsation-free output for tendon duct grouting and precision applications. Handles cement grout and bentonite-cement mixes — built for tunnel site conditions.

Flow: 15–45 L/min

IGS Intelligent Grouting Machines

Automated batching, mixing, and grouting with real-time monitoring and data recording. Meets railway and highway specifications — ensures consistent grout quality and full traceability.

Automated · Data Logging

High-Speed Mixers

Colloid mixers for cement grout, bentonite slurry, and chemical grouts. Achieves the particle dispersion and viscosity required for bubble-free, stable grout performance.

1440 RPM · 15 m/s

Grouting Accessories: High-pressure hoses Quick-connect couplings Pressure gauges Flow meters Grouting packers Non-return valves Manifold systems

Why Choose XQV for Your Tunnel & Underground Project

✔ Proven in major projects
Used in railway, highway, and metro tunnel projects across China and international markets.

✔ Full system integration
From mixers to pumps and accessories — one source for complete tunnel grouting systems.

✔ Site-ready durability
Built to withstand dust, moisture, and continuous operation in underground environments.

✔ Technical support
Remote assistance for grouting procedure setup and troubleshooting — always available.

✔ Flexible supply
One pump for small tunnels or multiple units for large TBM projects — we meet your schedule.

Key Technical Considerations for Tunnel Grouting

Consideration	Recommendation
Grout mix design	Cementitious grout or bentonite-cement blend depending on ground conditions
Flow rate	Match pump capacity to duct size and project specs (typical: 15–45 L/min)
Pressure control	Regulate pressure to avoid over-grouting or ground heave
Bubble-free grout	Use high-speed mixers and continuous agitation to prevent air entrapment
Cleaning	Flush hoses and pump immediately after each shift to prevent set-up and blockages

Liuzhou Xuanqiao Prestressing Force Machinery Co., Ltd.

Address：Block A-10-4, Hebiao Industrial Park, Yufeng District, Liuzhou City, Guangxi

Postal Code：545000

Customer service hotline:

+86 0772-2169908

Sales Department Phone ：

+86 19101251623（Mr.Kong）

Technical Phone Number：

+86 18775155422 (Mr. Zhou)

whatsapp:+86 19101251623

Fax：+86 0772-2169908

email: info@lzxqv.com

Website：www.xqvglobal.com