Grouting Pipe

Grouting Pipe
Grouting guide pipe (also known as steel perforated pipe) is a small-diameter steel pipe used in tunnels and underground engineering for advanced pre-support and ground reinforcement. Grouting is injected into the pipe to improve the physical and mechanical properties of the surrounding rock and enhance stability.
Grouting Pipe
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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)

Product Showcase

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Production And Processing

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Product Packaging

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