| 摘要 |
PURPOSE:To solidify the ground firmly and completely by easy operations without causing pollution, by injecting a primary grout material consisting of suspension containing an electrolyte substance of polyvalent metal to the ground, impregnating a secondary grout material containing colloidal solution of silicic acid to it. CONSTITUTION:The casing 2 is inserted through the injection hole 1 into the ground, the injection pipe 5 having the part of the extrusion hole 3 covered with the rubber 4 is then inserted into it, the space between the casing 2 and the injection pipe 5 is sealed with the sleeve grout 6, and casing 2 is pulled out. The strainer pipe 8 equipped with the packer 7 is inserted into the injection pipe 5, a primary grout solution consisting of suspension containing an electrolyte of polyvalent metal is injected into the ground, after which a secondary grout solution consisting of a colloidal solution of silicic acid is injected. |
