Ancient building seismic isolation barrier

The invention belongs to the technical field of building earthquake prevention and specifically relates to an ancient building seismic isolation barrier. The ancient building seismic isolation barriercomprises seismic isolation groove bodies distributed around an ancient building; two rows of seismic isolation row piles are perpendicularly driven into the external sides of the seismic isolation groove bodies downwards; the seismic isolation row piles are hollow tubular piles; and the seismic isolation row piles adopt steel reinforcement coal ash concrete precast tubular piles. The layout formof the seismic isolation row piles adopts intensive layout; the apertures of the seismic isolation row piles are less than the distances between the adjacent seismic isolation row piles; and the seismic isolation groove bodies are filled with foam concrete blocks. As the ancient building seismic isolation barrier is a row pile-seismic isolation groove composite seismic isolation system, adverse effects of vibrations with