| 摘要 |
PURPOSE:To permit a grout to permeate in a wide range into the ground by applying a vibration to the injection tube. CONSTITUTION:A grout 16 is injected through an injecting tube 14 penetrated into the ground 10 while applying a vibration to the tube 14. The permeating range of the grout 16 in the ground can thus be greatly widened and the number of the tubes 14 to be set can be greatly reduced.
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