THE GROUNDWATER ABANDONED WELL PROCESSING METHOD WHICH USED GELLATION OF SOIL

摘要

A method for obturating an abandoned well using gelation of loess is provided to prevent the pollution of underground water by cutting off the inflow of surface water to an abandoned well perfectly and to have environmentally friendly and economic effects by using soils around the well. A method for obturating an abandoned well using gelation of loess comprises the steps of: forming a solidified impermeable layer(2) on the base of a well(1) by mixing a main material with a hardener and injecting to the well; and sealing the well hermetically by blocking up the inflow of surface water primarily and re-filling the well with circumferential soils(3) secondarily. Wherein the main material is composed of 20~30 weight percent water, 10~20 weight percent acryl based monomer, 0.1~1 weight percent triethanolamine, 0.1~0.5 weight percent 1-percent sodium hydroxide solution and 0.01~0.1 weight percent N~N' methylenebisacrylamide per 100 weight percent soils, and the hardener is composed of 20~30 weight percent water and 0.01~0.1 weight percent sodium persulfates per 100 weight percent soils.