| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of injecting an injection liquid into the ground while rationally and efficiently setting injection conditions according to the injected state of the injection liquid. SOLUTION: Solidification characteristics when injecting a chemical solution into the ground are evaluated to determine the mixing of the chemical solution suitable for the object ground 1. A plurality of injection holes 2 for injecting the chemical solution are bored in an object region of the ground 1. While monitoring the injection speed, the chemical solution is injected into the ground 1 from the injection holes 2 at constant injection pressure within a range not to form a cleavage in the ground 1. When the injection speed is lowered to a prescribed value in the state of holding the injection pressure within the range not to form the cleavage in the ground 1, the injection of the chemical solution is terminated, and the executed chemical solution 5 infiltrating into the ground 1 is cured. COPYRIGHT: (C)2005,JPO&NCIPI
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