| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ground injection method capable of restraining deterioration of a structure embedded in soil due to reaction products when aseismatically strengthening the structure embedded in soil having a hollow part by using a silica grout excellent in durability and of suppressing, to a minimum, the effect of the reaction products of silica grout on an overall injection area by minimizing the amount of the reaction products in the overall injection area in order to attain the prevention of concrete deterioration and the conservation of water quality. <P>SOLUTION: In a ground injection method in which a non-alkaline silica solution containing a chelate agent as an effective component is injected into ground around an existing or planned structure embedded in soil, at least a part of the structure embedded in soil being below an underground water level, one of the walls thereof facing a ground, another wall being exposed to the atmosphere, the non-alkaline silica solution is injected in such a manner that the content of the chelate agent in the ground is 36 g or more per 1 m<SP POS="POST">2</SP>on the surface of the structure embedded in soil. <P>COPYRIGHT: (C)2012,JPO&INPIT |
