Steel pipe casing for cast-in-place concrete pile using vibro hammer and method for constructing cast-in-place concrete pile using the same

摘要

The present invention is intrusive to the ground using a hammer for construction steel pipe casing to be used in civil construction in Vibe relates to, and more particularly, using a hammer of an external force and reduce damage to the front end of the deformation and the tip attached to the distal end of the device object to the steel casing used repeatedly by the obstacle of the ground steel casing exerted upon penetration of the steel pipe to a vibrator by using the underground construction intrusive it relates to a method for the construction of cast-in-place concrete piles. ; In the present invention, it is attached to the leading end of the steel pipe through the casing to force the tip up and down in the device, which enables the repeated use of the ground easily, and its ( ) penetration of the steel casing ( ) a projection of the plurality of blade shape along the lower rim of the cylindrical tube to provide a steel pipe casing, characterized in that the front end unit formed form a uniform distance from each other downwardly. ; The present invention also provides such a steel casing front end device is equipped with a steel casing for the development weld through the steel surface in a zigzag pattern along the bottom outer peripheral steel. ; above After penetration in the ground using a hammer and a steel pipe casing Vibe pouring concrete to cure the drawing hole formed by drawing it relates to a method for the construction of cast-in-place concrete piles.