| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To increase the density of a ground by compressing the peripheral earth and sand simultaneously forming a bulk of the grout itself in the ground by injecting into a soft ground under pressure a non-curable silica powder or a plastic gel grout comprising, as active ingredients, a non-curable silica powder and an agent causing curing consisting of a calcium-based powder. <P>SOLUTION: The plastic gel grout forms a bulk of the grout itself in a ground by losing its fluidity as time goes or by dehydration after injection, and comprises, as active ingredients, a non-curable silica powder and water or a non-curable silica powder, an agent causing curing consisting of calcium-based powder and water. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
