| 摘要 |
<p>The method of installing a concrete pile in soil comprises forming a vertical opening in the soil below the surface by driving a pusher which is preceded by a plow point downwardly into the soil. Simultaneously grout, is fed into the opening to form the body of a concrete pile. The evacuated void which tends to develop in the opening is formed below the grout and between the grout and the plot point, and is vented. The method comprises delivering the grout by gravity into the opening during the formation of the opening.</p> |
