| 摘要 |
PROBLEM TO BE SOLVED: To provide a sludge reuse method in high-pressure injecting ground improvement, which can improve the workability of hole backfilling work to suppress material costs and transport costs for the work by reusing part of sludge, ejected from a hole during cutting of the ground in the high-pressure injecting ground improvement, in the hole backfilling work, and can reduce the amount of carried-out sludge to remarkably reduce sludge treatment costs. SOLUTION: The sludge ejected from the hole during the cutting of the ground in the high-pressure injecting ground improvement is classified using a sludge classifier 10 to take out sand, which is mixed with a ground improvement hardener used in the high-pressure injecting ground improvement to prepare a backfill hardener. The backfill hardener is charged into the hole to fill the hole in the backfilling work for backfilling the upper part of the hole, thereby backfilling the hole. COPYRIGHT: (C)2011,JPO&INPIT
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