Active underpinning structure of hyperstation foot stall or pile foundation

The utility model discloses an active hyperstatic pier stud or pile foundation underpinning structure comprising at least two rows of new piles and underpinning crossbeams, wherein the crossbeams of space continuous latticed structures comprising at least three cross beams, at least two longitudinal beams, top plates and bottom plates; the new piles are connected under the cross beams, and each row of new piles is provided with at least two new piles. The space continuous latticed underpinning structure comprises the cross beams, the longitudinal beams, the top plates, the bottom plates, and the like, the cross beams of the underpinning structure are connected with the original pier stud or pile foundation which is needed to be underpinned into an integral stressed structure through a shearing resistance measure, and load transferred by the underpinned pier stud or pile foundation is borne together by the stressed cross beams, longitudinal beams and new piles of the underpinned structure, thereby structures w