Self-Drilling Hollow Anchor Bolt for Tunnel Roof Stabilization
This self-drilling anchor bolt integrates drilling, grouting, and anchoring functions. It is widely used in tunnel pre-support, slope stabilization, and geological disease treatment.
Technical Specifications
Product Overview
Tunnel Roof Stabilization Solution
This self-drilling hollow anchor bolt system is engineered for efficient ground support in tunneling and mining applications. By allowing for simultaneous drilling and grouting, the hollow bar design ensures enhanced bonding with surrounding rock or soil, providing critical structural integrity. Manufactured from high-strength steel, these bolts are suitable for diverse geological conditions and are essential for maintaining tunnel safety.
Technical Performance
Load and Dimensional Data
| Model | OD (mm) | ID (mm) | Ultimate Load (kN) | Yield Load (kN) | Weight (kg/m) |
|---|---|---|---|---|---|
| T30/16 | 30 | 16 | 220 | 180 | 2.7 |
| T30/14 | 30 | 14 | 260 | 220 | 2.9 |
| T30/11 | 30 | 11 | 320 | 260 | 3.3 |
Material & Design
Anti-corrosion Options
Hot-dipped Galvanization
- Thread Type
- T
- Steel Standard
- EN10083-1
- Thread Direction
- LeftRight
- Available Lengths
- 1-6m (Customizable)
