一种模拟边坡落石复杂运动的抛射式冲击测试系统及方法

By designing a projectile impact testing system, the complex motion of rockfall on slopes can be accurately simulated, solving the problem that existing devices cannot simulate rock tilting and rotation. This enables the study of the dynamic response law and energy dissipation mechanism of the protective cushion layer, reduces testing costs, and improves the scientificity and safety of the protective design.

CN122409381APending Publication Date: 2026-07-17XIANGTAN UNIV +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIANGTAN UNIV
Filing Date
2026-06-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing rockfall impact testing devices cannot accurately simulate the toppling and flipping of rocks with the toe of the slope as the fulcrum, as well as the initial horizontal velocity generated by friction and collision with the structural surface. They are difficult to simulate complex rotation and velocity vector combinations, and the cost of a single test is high, which limits repeated tests and parameter sensitivity analysis.

Method used

A projectile impact testing system was designed to simulate the complex motion of falling rocks on slopes. The system includes a storage tank, a projectile device, and a rockfall impact testing platform for the protective cushion layer. The projectile speed and rotation state of the falling rocks are precisely controlled by electric rollers, slides, and infrared velocity measuring devices. The impact process is recorded by force sensors, acceleration sensors, and cameras, enabling the study of the dynamic response law and energy dissipation mechanism of the protective cushion layer.

Benefits of technology

It achieves precise control over the impact speed, angle, and rotation of falling rocks, reduces the cost of a single test, provides reliable theoretical basis and experimental support, offers a refined scientific simulation tool for optimizing rockfall protection design, and improves the safety level of transportation facilities in mountainous areas.

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Abstract

本发明属于落石冲击测试技术领域,具体涉及一种模拟边坡落石复杂运动的抛射式冲击测试系统及方法,系统包括储存桶、抛射装置和垫层落石冲击测试平台;垫层落石冲击测试平台包括防护箱以及设置于防护箱上的防护垫层、力传感器、加速度传感器和摄像机;经抛射装置抛出的落石由不同冲击速度、复杂旋转状态运动后落至防护箱内,力传感器与加速度传感器检测落石掉落时的运动状态,摄像机记录落石掉落时防护垫层的冲击形态。本发明旨在研究抛射高度、冲击速度、冲击角度及复杂旋转状态等诸多因素共同控制落石抛射进入防护垫层的运动特征,通过对防护垫层加速度信号、结构受力的监测分析,从而得到岩体落石崩塌产生的动态响应、能量耗散的演化关系。
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