Grouting pipe

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Grouting pipe

Keywords:

Grouting pipe

“Small guide tubes” are advanced support elements in tunnel engineering—specifically, grouting small guide tubes or steel flower pipes—and serve as advance support systems in civil engineering. Their applications include pre‑support and ground reinforcement prior to tunnel excavation or foundation pit construction in weak, fractured strata.

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Detailed description

“ Small catheter ” Is ‌ Advance support components for tunnel engineering ‌ (Grouting small-diameter casing) / Steel flower pipe) is ‌ Advance Small-Diameter Pilot Tubes in Civil Engineering ‌。‌‌‌ Purpose ‌ : Used in engineering ‌ Tunnel in weak and fractured strata / Pre‑support and ground reinforcement prior to excavation of the foundation pit ‌。

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‌ Common specification: Outer diameter 42mm/48mm/50mm For the main part, wall thickness is 3.0–5.0mm , with a tapered front end and plum-blossom‑shaped finger holes on the body (hole diameter 6–10mm ), with a slurry‑stop section at the tail.

The materials are mostly Q235B and 20# Steel.

‌ Applicable Scenarios ‌ : Shallow-buried cut-and-cover tunnel, portal section, fault fracture zone, sand layer / Sandy gravel layer and weak surrounding rock with an extremely short self-stabilizing time.

Direct from the factory, with custom sizing available.

Application Cases