THREE-DIMENSIONAL LOADING STRUCTURE OF ULTRA-LARGE DEEP ENGINEERING DISASTER PHYSICAL SIMULATION FACILITY

A three-dimensional loading structure of an ultra-large deep engineering disaster physical simulation facility, comprising a horizontal ultra-large reaction frame, a vertical ultra-large reaction frame, an ultra-long stroke lifting and locking hydraulic cylinder (8), five groups (2, 3, 4, 5, 6) of arrayed hydraulic actuators and a group (7) of linearly arrayed hydraulic actuators. The horizontal ultra-large reaction frame (1) is of a frame structure which is round outside but square inside, is formed by connecting eight arched beams and has prestressed carbon fibers (12) wound thereon; the vertical ultra-large reaction frame is of a double-beam four-column pre-tightening force frame structure; the five groups (2, 3, 4, 5, 6) of arrayed hydraulic actuators are distributed on the periphery of the horizontal ultra-large reaction frame (1) and the top of the vertical ultra-large reaction frame, and the group (7) of linearly arrayed hydraulic actuators is located in the middle of the bottom of the vertical ultra-l