Long crack multi-angle crack simulation device and system

The invention provides a long crack multi-angle crack simulation device and system.The crack simulation device comprises a base, a bottom plate, a telescopic rod and a crack model body, the base is fixedly arranged on the ground, the bottom plate is horizontally arranged on the base, and the bottom plate is hinged to the base; the crack model body is fixedly arranged on the bottom plate in the length direction of the bottom plate and is perpendicular to the bottom plate, the crack model body comprises more than two crack models and universal expansion joints for connecting two adjacent crack models, and the crack model body is in a bent or linear shape with a certain length; one end of the telescopic rod is connected with the base, and the other end is connected with the bottom plate to push the bottom plate to rotate relative to the base, so that the simulated crack body inclines relative to the ground. The long crack multi-angle crack simulation system comprises the crack simulation device. The device has t