Foundation pit prefabricated stand column pile

The utility model discloses a foundation pit prefabricated stand column pile which comprises a prestressed high-strength concrete pipe pile located on the lower portion, a steel structure column located on the upper portion, an inverted cup sleeve and a shear key, wherein the inverted cup sleeve and the shear key are connected with the prestressed high-strength concrete pipe pile and the steel structure column. The inverted cup sleeve is arranged at the upper end of the prestressed high-strength concrete pipe pile in a sleeving mode, and the shear key is arranged at the top of an inner core of the prestressed high-strength concrete pipe pile and connected with the inverted cup sleeve. The lower end of the steel structure column is connected with the inverted cup sleeve. According to the structure, the latticed columns are arranged on the upper portions of the stand column piles and are combined through the angle steel and the batten plates, the batten plates can be arranged at intervals, construction of the s