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Product Details
Product Specification: Forepoling Tube
Parameter | Value |
Product Name | Forepoling Tube (Spiling Tube / Advance Small Duct) |
Place of Origin | Shandong, China |
Standard | GB/T 8162, GB/T 8163, ASTM A53, BS 1387 |
Material Grade | 20#,16Mn,R780,Dz50,Dz40 |
Outer Diameter | 42-219mm |
Wall Thickness | 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm |
Length | 2m, 4m, 6m,12m (customizable) |
Section Shape | Round |
End Treatment | Pointed tip (one end forged or cut to a point) |
Grouting Holes | φ8mm - φ12mm holes drilled along the pipe (spacing 100mm-300mm) |
Surface Treatment | Galvanized (hot-dip or electro), black, oiled |
Connection Type | Threaded coupling or welded extension |
Processing Service | Threaded connection, connector/sleeve, barbs, slurry outlet |
Application | Forepoling (umbrella method) in tunneling, mountain tunnels, shallow buried excavations, soft ground reinforcement |
Advantage | High strength, easy grouting, improves soil stability before excavation |
Delivery Time | 7 ~ 15 days |
MOQ | 5 Tons |
Packing | Bundled with steel strips, seaworthy export packing |
Certificate | ISO 9001, BV, SGS (upon request) |
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