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发明授权
CN105133604B 地基加固用螺旋桩及其制造方法 有权

地基加固用螺旋桩及其制造方法
摘要：
本原发明涉及地基加固用螺旋桩以及地基加固用螺旋桩制造方法，所述地基加固用桩，包括：桩体，其为棍棒形状，并且在其内部形成为空气或灌浆液的通路的贯通孔；螺旋翼，沿着桩体的外周面形成螺旋形状，并且与桩体设置为一体；灌浆孔，在桩体的外周面形成一个以上的孔以使其喷射灌浆液；尖端扩张加固板，其为板形状，并且在其上面结合桩体的一端，为使其与贯通孔在一条直线上，排气孔贯通其上、下面；及挖掘钻头，在其另一端生成切刀，并且其一端结合于尖端扩张加固板的下面一侧，挖掘钻头及螺旋翼进行旋转来穿孔地基之后，尖端扩张加固板安装在穿孔的孔的底面同时灌浆来提高尖端支撑力。
摘要（英）：

The present invention relates to a screw pile for reinforcing the ground, and in particular, a pile for reinforcing the ground which can dig the ground. The screw pile includes: a bar-shaped body with a pile hole that is a passage of air and grouting solution; a screw that is formed spirally and integrally around the body; one or more grouting holes formed around the body so that grouting solution can be sprayed; a tip expanding-reinforcing plate that has a plate shape, is coupled to one end of the body on its top, and has an air discharge hole formed through the top and the bottom in the same line as the pile hole; and a excavation bit that has one end coupled to a side of the bottom of the tip expanding-reinforcing plate and the other end with a blade, in which when the bit 500 and the screw form a hole in the ground by rotation, the tip expanding-reinforcing plate moves to the bottom of the hole and performs grounding, increasing a tip support force.

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