Piling pipe is a structural building material used to support and stabilize a building's foundation. When the soil below a building is loosely packed, it may not offer enough strength to keep the building stable over time. A pipe piling can be used to distribute the weight of the building deeper into the earth, where the soil is often more tightly packed. Pipe piles are also used to support exceptionally large or heavy buildings, where even standard soil cannot offer adequate support. Finally, a pipe piling may be required when the land area is too small to accomodate spread footers or foundations, forcing buildings to dig deeper to achieve sufficient ground stability.

Types of Pipe Piling

While all of the different piling methods involve driving pipes, different soil conditions and structural needs lend themselves better to different types of pipe piles. Here is an overview of some of the most common:

Unplugged Open-Ended – These pipes are completely open ended. After installation the ground level should be the same inside and outside the pipe. They transfer their load to the soil primarily through friction.

Bottom Plate – This is one of two common plugged piles. In this case the a steel plate is welded to the lower end. The plate is intended to create compression and increase friction to reduce sliding. These are used on rocky terrain where a minimum layer of soil exists between the rock and the pile.

Plugged Open-Ended – These have a plug on the bottom end of the pipe. This causes the soil inside the pipe to be a precise amount lower than outside the pipe.

Steel Pipe with Rock Shoe – This is the other common plug. Rock shoes serve the same function as steel plates, but they are used when the pile comes directly in contact with a rock surface. The equipped shoe must be able to support the entire load, and it will prevent any sliding along the rocky surface.

Franki Pipe Pile – Franki piles are intended to be permanent. They are plugged with a moist concrete filling and can withstand much stronger driving impact than their counterparts.





API Spec 5L PSL-1, ASTM A53, ASTM A252, ASTM A500, AS/NZS 1163, AS/NZS 1074, AS/NZS 2885, ASTM A795, ASTM A135, BS1139, BS1387, EN 10217, EN 10219, EN 10255, JIS G3444, JIS G3452 and etc.


A25, A25P, GR.A, GR.B, GR.C, X42, X46, X52, X56, X60, X65, X70, L175, L210, L245, L290, L320, L360, L390, L415, L450, L485, Q195, Q235, Q355, C250, C350, C350 L0, C450, C450 L0, S235JRH, S275J0H, S355J0R, S355J0H, GR.1, GR.2, STK290, STK400, STK490, STK500, STK540 and etc.


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