Steel pipe sheet piles, in which steel pipe pile is provided with joints, are employed to construct high-rigidity walls. Steel pipe sheet piles are widely used in revetments, breakwaters, and excavation earth retaining walls.
Similar to H-piles, pipe piles are also designed to transfer structural loads through the foundation to soils below. Where H-piles are typically classified as point bearing, pipe piles are most efficient as friction piles. Pipe piles have substantial surface area that interacts with the surrounding soil to provide great frictional load resistance. Pipe piles are also used in conjunction with sheet piles to add lateral stiffness and bending resistance where loads exceed the capacity of sheet piles alone.
Large rigidity and bearing capacity
Behaving as an integral foundation and thus yielding larger rigidity and bearing capacity compared with a pile foundation.
Doubling as temporary cofferdam
Doubling as temporary cofferdam with the advantages shown on the right
（1）Possible to shorten construction period and reduce construction cost.
（2） Improved safety during construction.
（3）Neighboring construction is possible due to small space occupied 1