| 摘要 |
PURPOSE:To promote the consolidation of ground for strengthening bearing force of the ground by a method in which a tube connected with an injection tube and a structural element is penetrated into the injection hole of the ground and a grout is injected through the injection tube into the ground and expanded. CONSTITUTION:An injection hole 2 is drilled in the ground by an excavator, and a tube 3 into which PC steel wire 5 with an injection tube 4 are inserted is penetrated into the injection hole 2. Then, a given grout 6 is injected through the injection tube 3 under a fixed injection pressure into the ground and expanded to an allowable extent for the tube 3. By this, the promotion of consolidation of the ground, the improvement of the ground, and strengthening of the bearing force of the ground can be effectuated without causing loss of the grout 6 caused by run-off due to the presence of the tube 3. |
