Self-Drilling Anchor Bolts – The Ultimate Solution for Efficient Ground Anchoring
Product Overview
Self-drilling anchor bolts are advanced rock support systems designed for rapid and secure installation in challenging geological conditions. Unlike traditional anchor bolts, these integrate drilling, grouting, and anchoring into a single step, eliminating the need for separate drilling tools and reducing labor-intensive processes. Ideal for mining, tunneling, slope stabilization, and civil engineering projects, they offer unmatched efficiency in soft to medium-hard rock formations, fractured zones, or loose soils where conventional methods fail.
Key Features
- All-in-One Design: Combines drilling, grouting, and anchoring in a single operation, cutting installation time by up to 50%.
- High-Strength Core: Manufactured from premium alloy steel with optimized thread patterns for superior load-bearing capacity.
- Corrosion Resistance: Available with hot-dip galvanized or epoxy-coated surfaces to withstand harsh environments.
- Versatile Applications: Suitable for soft rock, soil, and unstable ground conditions where pre-drilling is impractical.
- Enhanced Safety: Minimizes worker exposure to hazardous environments by reducing manual grouting steps.
- Customizable Lengths/Diameters: Tailored to project requirements (e.g., 1.5m–6m lengths, 22mm–32mm diameters).
Technical Specifications
- Material: Alloy steel (ASTM A572 Grade 50 or equivalent).
- Drilling Tip: Equipped with a hardened drill bit for seamless penetration through rock or soil.
- Grouting Ports: Integrated channels allow simultaneous grout injection during drilling.
- Surface Treatment: Hot-dip galvanized or epoxy-coated for durability in corrosive settings.
- Compatibility: Works with cement, resin, or chemical grouts for optimal bond strength.
Why Choose Our Self-Drilling Anchor Bolts?
- Time-Saving: No need for pre-drilling; installation is completed in one pass, accelerating project timelines.
- Cost-Effective: Lowers labor and equipment costs by eliminating separate drilling stages.
- Reliable Performance: Tested under extreme loads to ensure long-term stability in dynamic environments.
- Global Standards Compliant: Meets ISO, CE, and ASTM certifications for quality assurance.
- Custom Solutions: Available in tailored lengths, diameters, and coatings to match specific geological challenges.
Applications
- Mining: Support for unstable underground tunnels and shafts.
- Tunneling: Reinforcement in soft ground or fractured rock zones.
- Slope Stabilization: Prevention of landslides in mountainous or coastal areas.
- Civil Engineering: Foundation anchoring for bridges, retaining walls, and high-rise buildings.
- Disaster Prevention: Seismic retrofitting and emergency stabilization projects.
Installation Guide
- Drilling: Insert the self-drilling bolt into the ground using a standard drill rig; the integrated bit penetrates rock/soil.
- Grouting: Inject grout through the bolt’s core during drilling, ensuring full saturation of the surrounding medium.
- Curing: Allow grout to set (typically 24–48 hours) before applying load.
- Testing: Conduct pull-out tests to verify bond strength and anchorage integrity.
Quality Assurance
- Pre-Shipment Testing: Each batch undergoes rigorous checks for tensile strength, thread integrity, and corrosion resistance.
Post time: 2026-01-21 10:37:41
