| 摘要 |
<p>The invention relates to a method for making leaktight walls in the ground, of the type in which a pile is driven vertically into the ground along the path of the wall to be produced, by vibration, and raised back up, injecting, at low pressure, at the base of the pile, a conventional slurry and a jet of very high pressure liquid substantially in the plane of the wall and in the direction of the part of the wall to be produced. As the pile (1) is raised back up, a jet of very high pressure liquid directed towards that part (2) of the wall which has already been produced is sent to the bottom part of this pile, the very high pressure liquid which is sent to the lower part of the pile as it is lowered and as it is raised back up consists of a fluid slurry based on water, bentonite, additives, and cement, while a thick conventional slurry based on water, bentonite, cement, additives and an aggregate which gives it its consistency is injected at the base (6) of the pile as it is lowered and raised back up. <IMAGE></p> |
