Strengthening soft ground with deep stirring lime column

The application of deep injection stirring is intro duced to put lime t hrough special implement, spray lime-ash into ground with compressed air, then i t is remold with earth in original position, after imperative stir, it will hard en as a solid with certain strength. Applied range, technical requirement, the t ape of poles distribution , and technological process of the method are analyzed . It is also pointed out that the method strengthening ground is employed on var ious weak earth, and better economic benefit can be achieved.