A foundation pit fixing structure for supporting piles

Abstract

The present invention relates to a foundation pit fixing structure for supporting piles applied in the field of pile support, comprising a main support rod, wherein the front end of the main support rod is rotatably connected to a drill bit through a rotating member, a movable sleeve outside the main support rod is provided with a splittable and combined sleeve, an adjusting mechanism is provided in the sleeve, and the adjusting mechanism is used to adjust the shape of the sleeve, wherein the shape of the sleeve comprises a cylindrical shape when combined and a sheet shape that moves radially along the main support rod after splitting. By adopting the above-mentioned splittable and combined sleeve and adjusting mechanism, on the one hand, the soil layer of the hole can be compacted to make the soil layer structure around the fixed structure more stable, and on the other hand, the split sheet-like sleeve can be further pressed into the soil layer on the side of the hole to form an anchoring structure deep in the hole, so that the fixed structure can be more effectively gripped in the deep soil layer, thereby enhancing the stability of the fixed structure itself, and can also be further reinforced by filling with concrete to improve the supporting stability of the foundation pit as a whole.

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