JPS6414232U

JPS6414232U -

Info

Publication number: JPS6414232U
Application number: JP10685187U
Authority: JP
Priority date: 1987-07-10
Filing date: 1987-07-10
Publication date: 1989-01-25

Description

[Brief explanation of the drawing]

第１図は、この考案の実施例を示す杭先端の正
面図、第２図は同じく側面図、第３図は同じく杭
先端の斜視図、第４図ａ〜ｄは本考案の杭が地盤
中の瓦礫に衝突したときの破砕状況を示す概略説
明図、第５図は、この考案の他の実施例を示す杭
先端の縦断面図、第６図は、回転圧入式杭打設装
置の正面図、第７図ａ〜ｃは、従来の杭が地盤中
の瓦礫等に衝突したときの様子を示す概略説明図
である。３…杭、１１…角鋼、１２…突起。 Fig. 1 is a front view of the tip of a pile showing an embodiment of this invention, Fig. 2 is a side view, Fig. 3 is a perspective view of the tip of the pile, and Figs. A schematic explanatory diagram showing the crushing situation when it collides with the rubble inside. Figure 5 is a vertical cross-sectional view of the tip of the pile showing another embodiment of this invention. Figure 6 is a diagram of a rotary press-in type pile driving device. The front view and FIGS. 7a to 7c are schematic explanatory diagrams showing what happens when a conventional pile collides with rubble or the like in the ground. 3...Pile, 11...Square steel, 12...Protrusion.

Claims

[Claims for Utility Model Registration] 1. A rotary press-fit type characterized in that one or more protrusions are provided at the tip in the penetration direction, protruding from the tip face in the penetration direction and protruding outward from the outer periphery of the pile. Piles for driving. 2. A rotary press-fit type driving pile according to claim 1, in which a protrusion is formed by welding a square steel to the outer periphery of the pile. 3. The rotary press-fit type driving pile according to claim 1 or 2 of the utility model registration claim, in which the protrusion is inclined with respect to the vertical direction.