Supporting and locating device for concrete filled steel tube in foundation ditch of basement

The utility model discloses a supporting and locating device for concrete filled steel tube in foundation ditches of basements, comprising a supporting post at the top of a sinker drilling hole under a natural ground, a steel tube in the sinker drilling hole and a lifting rope group used for hanging the steel tube on the supporting post. The supporting post is put on the natural ground horizontally; a fixed post which is telescoping to adjust the length is arranged on the outer wall of the top of the steel tube horizontally; when the steel tube is vertical by self gravity action, the fixed post is inserted into the inner wall of the sinker drilling hole and concrete is poured into the steel tube. The scheme has the advantages of precise location, high support strength of concrete filled steel tube and large span, thereby utilizing the space to a greatest extent and facilitating the construction.