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研究了提升容器在运行过程中与井筒装备相互作用的动力学性质,建立了矿井提升过程中罐笼的3 种基本动力学模型,即冲撞模型、非直线模型和凸出模型,以对应于罐道局部的变形和弯曲、罐道由于连接安装误差或井筒局部围岩变形而导致在整体上的非直线形式以及罐道在连接接头处的凸出不平或局部的严重锈蚀等3 种不同的井筒钢轨罐道的缺陷形式.同时根据理论分析和现场调查,进一步提出了用加速度的速率变化作为判别罐笼是否安全运行的基本准则.研究表明,与现有的直接用加速度数值作为判别的准则相比,新的判别准则能更好地描述井筒钢轨罐道所存在缺陷的程度.作为应用,文中给出了几个在澳大利亚的现场检测的实例.
The dynamic properties of the interaction between the container and the wellbore equipment during the operation of the container are studied. Three basic dynamic models of the cage during the process of mine hoisting are established, namely collision model, non-linear model and convex model, Local deformation and bending, due to the installation of the tank lane or partial deformation of the surrounding rock led to the overall non-linear form and the tank at the connection joints of the uneven or localized serious corrosion of 3 different wellbore rails Defects in the form of cans. At the same time, according to the theoretical analysis and field investigation, the paper further put forward the basic criterion of judging whether the cage is safe running by the rate of acceleration. The research shows that the new discriminant criterion can better describe the degree of defects in the wellbore railroad track compared with the existing direct acceleration value criterion. As an application, several examples of on-site testing in Australia are given.