Pipe Roofing System
Pre-support umbrella arch systems for tunnel portals, weak geological overburdens, and underground cavern excavation.
Pipe Roofing System
Pipe Roofing Umbrella Forepoling System
Complete tunnel umbrella arch pre-support system engineered to stabilize tunnel portals, fault zones, and low-overburden railway crossings before excavation.
Pipe Roofing System
S355 Structural Steel Casing Pipes for Pipe Roofing
Heavy gauge S355 structural casing pipes with precision-machined internal and external threads for seamless interlocking in tunnel umbrella arches.
Pipe Roofing System
Symmetrix Concentric Overburden Drilling Tooling Set
Concentric ring-bit overburden drilling system designed to drive large diameter steel casing pipes through gravel, boulders, and loose ground with straight hole accuracy.
OVERVIEW: Pipe Roofing System
SIGRICARE Pipe Roofing System provides critical pre-excavation crown reinforcement for tunnels through faulted, fractured, or loose ground. Steel casing pipes are driven sequentially ahead of the face in an umbrella arch configuration, preventing crown collapse and excessive surface subsidence.