| 摘要 |
PROBLEM TO BE SOLVED: To provide a grouting method for preventing the strength of a ground from being lowered by making porous the ground by preventing carbon dioxide gas from generating to increase a gelation time for solidifying a wide range even if a soil contains a large amount of calcium carbonate more than usual. SOLUTION: In this grouting method, after an acid compound and/or a chelating agent is injected into a ground, a silica compound is injected into the ground. The acid compound is desirably one selected from the groups formed of a phosphoric acid, a sulfuric acid, a hydrochloric acid, and an aluminum sulfate. The chelate agent is desirably a phosphoric chelate. COPYRIGHT: (C)2009,JPO&INPIT |
