Core Advantages of Utility Tunnel Support Brackets
Maximized Space Utilization
Multi-Layer Design: 2–3 levels separate power, water, gas, reducing tunnel width by 30–50% (e.g., from 4 m to 2.5 m).
Compact Layout: Bracket spacing meets GB 50838, ensuring efficient vertical use.
Fast Installation & Time Savings
Prefabricated + Modular Assembly: Factory-made parts with anti-corrosion finish, bolt-assembled on-site, boosting efficiency by 60%.
Example: 100 m install—traditional: 8 workers, 5 days; prefabricated: 3 workers, 2 days.
Low On-Site Risk: No welding or open flames, enhancing safety in enclosed tunnels.
Strong Deformation & Seismic Adaptability
Absorbs Movement: Spring hangers, adjustable rods handle settlement (≤20 mm) and earthquakes (up to intensity 8).
Secure Anchoring: Chemical anchors or embedded plates resist pull-out ≥10 kN.
Thermal Expansion: Sliding clamps allow ±50 mm axial movement, preventing stress damage.
Easy Maintenance & Upgrades
Detachable Structure: Bolt-off clamps enable quick single-pipe maintenance (e.g., water pipe swap in 3 hours vs. 2 days with traditional supports).
Expandable Design: Pre-reserved bolt holes allow adding new lines (e.g., 5G cables) without new drilling, cutting retrofit costs by 50%+.
Lower Total & Lifecycle Costs
Initial Costs: Slightly higher material cost (20–30%) offset by 40% labor savings and 30% faster timelines.
Long-Term Savings: 30-year corrosion protection, 80% component reuse, and up to 60% lower maintenance costs.
