Multi-speed multi-stage gradient adjustable rockfall impact pier simulation device

Abstract

This application relates to a multi-speed, multi-level adjustable slope rockfall impact simulation device for testing the impact resistance of bridges in mountainous areas. The device includes a material transport device, a slope adjustment device, a slope model, and testing equipment. The material transport device transports and releases falling rocks via a conveyor belt, a cargo box, a protective shell, and a discharge port. The slope adjustment device adjusts the height and inclination of each slope level using multiple sets of steel frames and positioning blocks. The slope model includes at least two slope levels, each composed of side plates and a bottom plate. Adjacent slope levels are connected by hooks and circular pipes. Replaceable slope simulation material is laid on the surface of the bottom plate. The testing equipment records the strain changes of the bridge pier and the movement process of the falling rocks. This device has a simple structure, is easy to install, and can meet the experimental requirements for different initial velocities and multi-level slope combinations.

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