Current standard vs. New Central Bracket:
Current standard, friction connection:
- Friction connection
- May slide over time
- Time consuming installation
- Used with rock bolt
- Many points that require maintenance
Central bracket,
directly onto threaded rod:
- No friction connection
- Requires few parts
- Fast installation
- Improved safety
- Cable ladders can be stacked
- Fulfils criteria in SVV handbook
Compared to the current standard for tunnel support, you can save -20% per support when the new Central Brackets are installed.