| 摘要 |
An insertion steel pipe pile is provided that the insertion to the predetermined depth is smoothly enforced. An insertion steel pipe pile(1) comprises a steel pipe pile main body(2) which is the hollow cylinder shape having the predetermined diameter. The blade includes semicircular peripheral parts(30a,30b) extended to the steel pipe pile main body and concentric as the semi-circular arc shape, center extension parts(31a,31b) parallelly extended due to the diameter direction of the steel pipe pile main body predetermined, and insertion blade parts(36a,36b,37a,37b). |
