| 摘要 |
The present invention pertains to a complex pile with an improved end bearing capacity and a piling method of a complex pile using the same. When a support layer is penetrated by a PHC pile at the lower portion of a bore-hole by hammering or slight hitting after forming an insertion pipe for the penetration of the support layer at the front end of the PHC pile and inserting the same to the inside of the bore-hole bored in the ground, the insertion pipe for the penetration of the support layer, which has a low penetration resistance, passes through the slime of the bottom of the bore-hole which has been generated in the process of excavation and the support layer at the lower portion of the bore-hole where the slime remains and strength is weakened. Therefore, the insertion pipe is safely mounted on the solid support layer at the lower portion of the bore-hole so as to secure superior front end supporting force. |
