主溜井中矿岩三维运动轨迹分析与验证

溜井运输过程中，矿（废）石与井壁的碰撞造成井壁破坏较为严重。确定矿（废）石与井壁碰撞前的运动轨迹和碰撞位置，对于保证溜井井壁稳定性具有重要意义。以某矿山主溜井溜矿段-40~-71 m为例，建立了溜井溜矿段相似试验平台。根据运动学理论，结合相似试验结果，得到矿（废）石与溜井井壁产生首次碰撞前的运动轨迹和三维轨迹方程。研究表明：理论计算得到的矿石冲击位置略低于试验中矿石的冲击位置，误差不超过4.84%，理论计算及试验结果与矿山实际检测结果基本一致。分析结果可为确定溜井井壁的受冲击区域、溜井系统设计与优化、溜井治理与修复、溜井管理方案制定等提供依据。

Analysis and Verification of 3D Motion Track of Ore or Rock in Main Orepass

In the process of ore or rock transported in the orepass，the damage of the orepass lining caused by the collision between ore or waste rock and orepass wall is more serious.It is of great significance to determine the trajectory and position of the ore or waste rock before them collision with orepass wall to ensure the stability of the orepass wall.Taking the main orepass from -40 m to -71 m of a certain mine as an example， the similar test platform of the orepass section is established. According to the kinematics theory，combined with the similarity experiment， the three-dimensional trajectory equation of the ore or waste rock moving in the orepass before their first colliding with orepass wall.The study results show that the impact position of the ore calculated by theory is slightly lower than that of the ore in the experiment， and the error is less than 4.84%，the theoretical calculation and experimental results are in good agreement with the test results of the case mine.The study results can provide the basis for determining the impact area of the orepass wall，the design and the optimization of the orepass system，the treatment and repair of shaft and the formulation of orepass management scheme.