Supporting structure of deep foundation pit in offshore area

The utility model discloses a supporting structure of a deep foundation pit in an offshore area, and relates to the technical field of deep foundation pits. The supporting structure of the offshore area deep foundation pit comprises a supporting vertical plate, a limiting transverse pile is attached to one side of the supporting vertical plate, a fixed transverse pile is attached to the side, away from the supporting vertical plate, of the limiting transverse pile, a lifting rod is fixed to the side, relative to the limiting transverse pile, of the fixed transverse pile, and an inserting sleeve is fixed to the upper end face of the lifting rod; a groove is formed in the side end of the inserting sleeve, an outer sleeve is attached to the inner side of the groove, the outer sleeve and the lifting rod are combined to form a U-shaped structure, an inner sleeve is attached to the inner side of the outer sleeve, and the outer sleeve is in threaded connection with the inner sleeve. A traditional transverse supporti