Fabricated prestressed highway tunnel anti-collision guardrail

The utility model discloses an assembly type prestress highway tunnel anti-collision guardrail which comprises an installation column, the side wall of the installation column is fixedly connected with a plurality of reinforcing blocks, the upper side of the installation column is fixedly connected with a base, the upper side of the base is fixedly connected with a sleeve, a connecting column is arranged in the sleeve, and the connecting column is fixedly connected with the base. A plurality of mounting grooves are formed in the side wall of the connecting column, a threaded rod is arranged on the side wall of the sleeve in a penetrating mode, one end of the threaded rod is located in one mounting groove, the threaded rod is in threaded connection with the mounting groove, and two mounting plates are fixedly connected to the side wall of the connecting column. The connecting column is reasonable in structural design, the position of the connecting column can be adjusted, threaded holes in the connecting colum