Experimental devices for analyzing seismic damage to slopes under coupled action of ground motion and bedrock dislocation

An experimental device for analyzing seismic damage to a slope under coupled action of ground motion and bedrock dislocation, comprising:

• a seismic motion excitation system based on a shaking table;
• and a bedrock fault dislocation system arranged on the seismic motion excitation system;
• wherein
• the seismic motion excitation system includes the shaking table, a shaking table platen, a plurality of vertical actuators, and a horizontal actuator;
• wherein the plurality of vertical actuators are arranged on a lower surface of the shaking table platen, the horizontal actuator is arranged at an end of the shaking table platen, the plurality of vertical actuators and the horizontal actuator are fixed to the shaking table;
• the seismic motion excitation system is configured to realize bidirectional seismic motion input;
• the bedrock fault dislocation system includes a lifting box and a fixed box, wherein the fixed box is fixed to the shaking table platen, the lifting box and the fixed box are hingedly connected with each other, the lifting box is provided with a slope adjustment actuator configured to jack up the lifting box to achieve a required slope gradient;
• a bottom plate of the lifting box includes a movable bottom plate and a fixed bottom plate, and a relative fault dislocation is achieved by pushing the movable bottom plate of the lifting box with pushing actuators;
• the lifting box further includes a rear plate and side plates;
• the movable bottom plate is located at a rear side of the lifting box, and the fixed bottom plate is located at a front side of the lifting box, with installation gaps reserved between the movable bottom plate and each of the fixed bottom plate, the side plates, and the rear plate;
• each of four corners of a bottom portion of the movable bottom plate is provided with angle steels;
• each of both ends of the fixed bottom plate is fixedly connected to one of the side plates, a front end of the fixed bottom plate is provided with a bearing hinge interface configured to be hingedly connected to the fixed box;
• each of the side plates is provided with a support bracket hingedly connected to the slope adjustment actuator, and a bottom portion of the slope adjustment actuator is locked to the shaking table platen via fasteners, and hoisting rings are fixed to reinforcing ribs at four corners of an upper portion of the side plates;
• the fixed box includes a front box plate, fixed side plates, and a bottom plate, wherein the front box plate, the fixed side plates, and the bottom plate are fixedly connected to each other as a whole and locked to the shaking table platen via fasteners, a rear end of the bottom plate is provided with a hinge bearing device configured to be hingedly connected to the bearing hinge interface at the front end of the lifting box, and the bottom plate is connected to the shaking table platen via the fasteners;
• after the lifting box is raised, the side plates of the lifting box are embedded within the fixed side plates of the fixed box;
• and
• inclination adjustment reaction devices are locked to the shaking table platen via fasteners and located below the movable bottom plate of the lifting box, each of the inclination adjustment reaction devices is provided with multi-angle holes, a bottom portion of each of the pushing actuators is detachably connected to the multi-angle holes, and a top portion of each of the pushing actuators is detachably connected to a hinge head at the bottom portion of the movable bottom plate of the lifting box;
• wherein counts of the inclination adjustment reaction devices and the pushing actuators are four.