| 摘要 |
PROBLEM TO BE SOLVED: To provide an execution method of a purifying wall having an extent in the horizontal direction. SOLUTION: A hole is excavated up to the prescribed depth in the underground polluted ground D, a monitor 2 is inserted into the excavating hole h1, the polluted ground D is cut by a water jet J, the cut polluted ground D is discharged and removed on the ground by an injection material M1, a purifying material S is injected from an injection member 2A, and the polluted ground D is substituted to construct a purifying wall Gs.
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