PROBLEM TO BE SOLVED: To provide a civil engineering pile that can be used for a purpose of preventing grass or stabilizing a slope.;SOLUTION: A leg pipe is provided which tapers in diameter and thickness towards a distal end in one or more stages relative to a proximal end pipe. The leg pipe is provided with a plurality of slits along the axis to form a leg portion consisting of a plurality of legs. A container filled with grout material is disposed on the proximal end pipe side of the plurality of legs, and an end of the leg portion is fitted with a flared or spherical wedge toward the distal end. Further, an offset pipe having a large number of small holes in the outer periphery is screwed to a rear end of the proximal end pipe. When the pile is driven from the rear end of the offset pipe, as the distal end of the leg portion is driven into the ground, the wedge moves to the back of the leg portion, and each leg expands according to the taper of the wedge. When the wedge hits the container filled with grout material, the container is broken and the grout material is released at a root of the spread leg portion and solidifies to form an anchor.;SELECTED DRAWING: Figure 4;COPYRIGHT: (C)2019,JPO&INPIT
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