Lift shaft foundation structure

The invention relates to a lift shaft foundation structure. According to the technical scheme, the lift shaft foundation structure comprises a concrete matrix, a ground joint plate, a rebar frame, water stop strips, anchor bolts, nuts, shaft columns, connecting flanges, horizontal connecting frame beams and flange fastening bolts. A lift shaft pit foundation is prefabricated, a foundation prefabricated structure is formed, the shaft columns of a lift shaft are mounted in advance on the basis of the prefabricated concrete matrix, the main rebar frame of the pit foundation is connected with theshaft columns in a welding manner, the shaft columns and the rebar frame are integrated, concrete is used for secondary pouring during site construction, the reserved rebar frame and the reserved shaft columns are poured into the concrete, a whole shaft column foundation is more firmly connected in a secondary pouring manner, meanwhile, the weight of the whole structure is greatly reduced comparedwith the structure obtain