Novel pile arch conversion structure

The utility model discloses a novel pile-arch conversion structure which is composed of an arch-shaped curved beam, a buffer layer and a pile structure, the arch-shaped curved beam is located below anupper-layer main body structure of a tunnel, the upper side of the arch-shaped curved beam is connected with the upper-layer main body structure of the tunnel, and the buffer layer is located betweenthe arch-shaped curved beam and upper-layer soil of a tunnel. The lower side of the arched curved beam is connected with the buffer layer, and the pile structures are located on the two sides of thetunnel hole and connected with the lower side of the arched curved beam. The pile arch conversion structure with excellent compression resistance not only can bear the load of the upper structure, butalso can release the load into soil bodies on the two sides of the existing tunnel along the arch, so that the load of the upper structure is effectively released, and the safety and the reliabilityof the existing tunnel are en