Customization: | Available |
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Certification: | ISO |
Molding Method: | Hot-Rolled Steel |
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The product is composed by hollow anchor bar, anchor nut, anchor plate, anchor coupler, drill bit, and the hollow anchor bars can be cut and lengthened by coupling on request. Self drilling anchoring system is an advanced system which can ensure the anchoring effect for complex ground conditions. It can be installed in sites with weak rocks, loose soil, weathered layer, sand with stone layer.
Features
1. Safe, reliable, and time saving. Self drilling system eliminates the requirement for a cased borehole.
2. Simple installation & operation.
3. Choice of drill bits for different ground conditions.
4. Grouting works synchronize with drilling or after drilling. Grout can fill fractures effectively.
5. Anchor bars can be cut and lengthened on request, applying to narrow spaces.
6. It provides higher bonding stress than smooth steel pipe depending on continuous wave thread.
7.Particulary suitable for difficult ground conditions.
Application
Radial Support
Pre-support
Foundation Support
Soil Nail
Hydropower station
Drill bits, nut, plate and coupler, etc.will be accembled accordingly.
Type | Outer Dia.(mm) | Inner Dia.(mm) | Ultimate Load(KN) | Yield Load(KN) | Weight(kg/m) |
R25N | 25 | 14 | 200 | 150 | 2.3 |
R32L | 32 | 22 | 260 | 200 | 2.8 |
R32N | 32 | 21 | 280 | 230 | 2.9 |
R32/18.5 | 32 | 18.5 | 280 | 230 | 3.4 |
R32S | 32 | 17 | 360 | 280 | 3.5 |
R38N | 38 | 21 | 500 | 400 | 4.8 |
R38/19 | 38 | 19 | 500 | 400 | 5.5 |
R51NL | 51 | 36 | 550 | 450 | 6.3 |
R51N | 51 | 33 | 800 | 630 | 8.0 |
T76N | 76 | 51 | 1600 | 1200 | 16.5 |
T76S | 76 | 45 | 1900 | 1500 | 19.7 |
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