CLEANING METHOD FOR CONTAMINATED GROUND

摘要

PROBLEM TO BE SOLVED: To provide a cleaning method for contaminated ground, capable of cleaning the contaminated ground at low treatment cost and without requiring a long term. SOLUTION: Contaminated ground D is cleaned by a drilling process of drilling the ground to a prescribed depth in the contaminated ground D in the earth, a water jetting process of inserting a water jetting device 2 into the drilled hole h1 to reflux water by a water jet J, a contaminant discharging process of discharging and removing contaminants d and to the face of the earth by the reflux of the water, and a permeable material replace process of jetting a permeable material to replace the drilled hole.