PIPE ROOFING SYSTEM
Pipe Roofing System is a support system used in loose ground conditions in conventional and mechanized tunneling. It is used to enhance ground properties to stabilize and reduce risk in tunnel works. It is a method of supporting tunnel by driving pipes ahead of excavation. It is also used in developing the portal sections.
Pipe Roofing Components
- Starter Pipe: First Pipe Welded with Ring Bit on one end & female threading on other end, which can be perforated / non- perforated as per the design requirement.
- Extension Pipe: Male – Female threaded pipe for extension, which can be perforated / nonperforated as per the design requirement.
- Pilot Bit
- Drill Rods
- Grout Plugs / Injection Cap