矿井提升中减速度检测方法的动力学分析

来源 :中国矿业大学学报 | 被引量 : 0次 | 上传用户:chenyanzhao12
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
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.
其他文献
期刊
期刊
◆美国原料皮销量rn截止到2019年10月10日那一周里,美国原料皮销量405 900张,与上周销量367 500张相比,增加11%.同期,美国盐湿皮的出口运输量为452 400张,与上周的445 600张相
期刊
期刊
本文主要论述加氢反应器油气入口的90度弯管与接管法兰的里口堆焊的实际应用以及相应堆焊难点的研究与论述,它是将90度弯头分割为3段,30度为一段分别堆焊拼接而成,而后利用小
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥