Shock absorption and energy dissipation device based on pile group foundation

The utility model discloses a shock absorption and energy dissipation device based on a pile group foundation, which comprises a plurality of viscous damping devices horizontally arranged between adjacent piles, each viscous damping device is provided with a closed cavity filled with viscous liquid, and two partition plates provided with a plurality of through holes are vertically arranged in each closed cavity; a long rod is arranged on the side, facing the side wall of the closed cavity, of each partition, one end of each long rod is connected with the corresponding partition, and the other end of each long rod penetrates through the side wall of the closed cavity to be connected with a pile. When an earthquake occurs, vibration of the pile is transmitted to the long rod, the partition plate can be driven by the long rod to do horizontal movement along the inner wall of the closed cavity, the partition plate can extrude the viscous liquid in the movement process, the viscous liquid is forced to flow repeate