| 摘要 |
<p>PROBLEM TO BE SOLVED: To secure integration of a soil improvement body.SOLUTION: A recess 114 is formed on an outer peripheral surface 112A of a preceding improvement pile 112 constructed by a mechanical agitation construction method, and a protrusion 124 engaged with the recess 114 is formed on the outer peripheral surface 122A of a following improvement pile 122 constructed by a high-pressure jetting type construction method. Thus, the improvement pile 112 constructed by the mechanical agitation construction method and the improvement pile 122 constructed by the high-pressure jetting type construction method are integrated together.</p> |
