| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve various problems of a conventional foot protection method.SOLUTION: In a foot protection method for a steel pile, a hole is drilled in a baserock bearing stratum Gr, and foot protection is performed by erecting a steel pile 1 in the hole. A pilot hole 2 with an inside diameter Di smaller than an outside diameter Do of the steel pile 1 subject to the foot protection is drilled in the baserock bearing stratum Gr by a drilling machine DH, and the steel pile 1 is forcedly pressed into the pilot hole 2 by a vibration hammer 22.</p> |
