PILE JOINTING METHOD FOR STEEL PIPE PILE

• Main Authors: OIKAWA YOSHIRO, FUTAMURA HAJIME, OKIMOTO MASAYUKI, YOSHIZUMI TOSHIHIKO
• Format: Patent
• Language: English
• Published: 17.04.1990
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

PURPOSE:To enable work to be easily executed by filling up a section between an upper and lower steel pipe pile internal-wall and a sleeve outer-peripheral-surface, with solidifying material, after the cylindrical sleeve of a small diameter is inserted into the rear end of a previous steel pipe pile having a sleeve bearing metal fittings, and a post steel pipe pile is joint-fitted on the previous steel pipe pile. CONSTITUTION:On the rear end internal-wall of a previous steel pipe pile 5, a sleeve bearing metal fittings 20 is fushion-welded 21 and the pile 5 is erected and after that, the cylindrical sleeve 22 of a small diameter is inserted in the pile 5 till the pile 5 is butted to the metal fittings 20. After that, when a pile 6 is suspended and is joint- fitted on the pile 5 with the guide of the sleeve 22, then a sealed space 24 is formed between the piles 5, 6 and the sleeve 22. After that, on the injecting slot 25 of the pile 5, a check valve injecting-instrument 26 is spirally fitted, and a hose 27 is joined to the injecting instrument 26. Then, on the penetration slot 28 of the pile 6, the filling degree display device D of a transparent tube 30 provided with a fitting plug 29 is fitted. Besides, the space 24 is filled up with solidifying material to be pressed in, via the hose 27 and the injecting instrument 26, when the solidifying material is infiltrated into the display device D and the level exceeds the position of a seal ring 23b, then the pressing-in of the material is stopped.