| 摘要 |
An erosion tool is inserted by drilling rods into the ground through a pilot bore, ground material is eroded and mixed with sealant to form a mainly horizontal sealing foundation element. At least one set of guide rods is positioned in the ground at a distance to the drilling rods with an overlap area of two neighboring sealing elements. The guide rods guide the erosion tool while it is drawn trough the pilot bore. The guide rods are drawn after fabrication of neighboring sealing elements. The erosion tool (100) has a connection (14) for drilling rods, and at a distance to it, a guide ring (16) for engagement with guide rods.
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