EXECUTION METHOD FOR TIP OPENED PILE

PURPOSE:To provide sufficient bearing power by spraying a solidifying agent from a rod inserted into a steel pipe to form a shielding body, inserting the rod deeper than the shielding body, then spraying the solidifying agent to form a consolidated body. CONSTITUTION:After a tip opened steel pipe pile 10 penetrates the ground to a specific death, an infection rod 20 is inserted into the pile 10, the first solidifying agent is sprayed to the intra-pipe soil 11 slightly above the tip section of the pile 10, and it is mixed with the intra-pipe soil 11 and solidified to form a shielding body 12. The rod 20 is further inserted deeper than the shielding body 12, the second solidifying agent is injected into the tube at the tip section of the pile 10 at a high pressure and solidified to form a consolidated body 13. The second solidifying agent is shielded by the shielding body 12, it compresses the ground below the tip section of the pile 10 without escaping upward in the pipe, and high end bearing power is exerted.