SOIL IMPROVEMENT METHOD AND SOIL STABILIZATION MACHINE TO BE USED

PROBLEM TO BE SOLVED: To improve soil to a prescribed depth only by a soil stabilization machine even if a hard stratum and a layer of boulder stones are present at some midpoint in the depth of soil improvement when soil of soft ground is to be improved. SOLUTION: A mixing rod 3 provided with mixin...

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Bibliographische Detailangaben
Hauptverfasser: HOSHI YOSHIYUKI, HOSHI TADAO, HOSHI HIROYUKI, HOSHI RIKIO, HOSHI FUMIO
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To improve soil to a prescribed depth only by a soil stabilization machine even if a hard stratum and a layer of boulder stones are present at some midpoint in the depth of soil improvement when soil of soft ground is to be improved. SOLUTION: A mixing rod 3 provided with mixing blades 34 and co-rotation preventing blades 33 is connected to a shaft rod 2 connected to a hydraulic auger 1 of a foundation machine. An excavation head 5 for soft ground is provided with a chemical discharge opening O5 at a tip side surface and a boring head 4 for hard ground provided with a chemical discharge opening O4 at a tip side surface are appropriately selected according to execution ground and connected to the tip of the mixing rod 3 to excavate the ground. The mixing rod 3 mixes excavated soil with chemicals in an excavation hole H while laterally jetting chemicals from the excavation head 5 or the cutting head 4 to improve soil in the excavation hole H. COPYRIGHT: (C)2008,JPO&INPIT