Novel modularized 35-220kV transformer substation assembly type GIS (Gas Insulated Switchgear) foundation

The utility model relates to a novel modularized 35-220kV transformer substation assembly type GIS foundation which comprises a plurality of prefabricated reinforced concrete foundations, and the adjacent reinforced concrete foundations are connected through split bolts. The reinforced concrete foundation comprises a prefabricated reinforced concrete cavity with an opening in the upper end and a steel bar truss floor support plate installed above the prefabricated reinforced concrete cavity through studs. According to the utility model, the lower foundation framework adopts an enveloping design, so that the stress requirement of the GIS equipment foundation can be met, and cast-in-place of mass concrete is avoided; after a manufacturer determines the size and the position of the embedded part, the upper part is cast-in-place by adopting a steel frame truss floor support plate without formwork erection, so that the engineering quantity of on-site steel bars and formworks can be obviously reduced, and meanwhile