The present invention relates life from the collapse of the landslide mountain behind, housing, protective barrier that can protect the property, is to provide a protection dam. A face-to-face on the outside of the side of one sheet of iron plate 7 steel pillars 3 of the H-shaped steel in parallel to the center of the pillar 3 of the steel H-shaped steel welded the two iron plate 8, a square type steel and the steel frame of the pillar 3, or the core 9 of the braided tubular rebar vertically and horizontally into the cavity of the round steel pipe or square steel pipe Irekomi, by the raw concrete is poured into the cavity, the steel frame that was in square type steel Pillar 3, or I have a pillar 3, or round steel or square steel pipe of steel that was to built-in square type steel reinforced concrete in a round steel pipe or square steel pipe. A structure in which confront the landslides, the construction period is short, cost and I can be reduced.BACKGROUND.
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