Combined tower crane foundation of cross beam supported by steel latticework columns in deep foundation pit

The utility model relates to a combined tower crane foundation of a cross beam supported by steel latticework columns in a deep foundation pit. The combined tower crane foundation comprises the cross beam, the steel latticework columns and a tower crane, wherein the two ends of the cross beam are laid on the steel latticework columns and are anchored with the steel latticework columns; the columns at four corners of the tower crane are supported at the four points of the cross beam; and the cross beam is used for connecting the four steel latticework columns into one. The combined tower crane foundation has the benefits that: 1. the design is practical and safe, the bearing is reasonable, and the space between piles accords with the code requirement; 2. the engineering piles are fully utilized without the affection of the space between the engineering piles, so as to reduce the investment; 3. the shape is beautiful and firm and does not appear to be heavy compared with a slab foundation; 4. the connection quality of the steel latticework columns and concrete can be easily ensured; and 5. the structure is simple, the operation is simple and convenient, and the labor and materials are saved.