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卡罐和过卷是矿并提升中可能出现断绳的危险事故，发生事故时机械系统对结构产生强烈动力作用；在井塔结构设计中，通常是以当量静力的摩擦轮事故荷载和过卷荷载代替上述动力作用。这些荷载取值，对结构设计起控制作用。是设计部门十分关注的问题；由于对两项荷载的认识，长期处于经验和半经验半理论阶段，国内外取值差异甚大。本文首次从事故调研着手，针对实际矿井，运用多自由度弹塑性动力学理论，以ＡＤＩＮＡ、ＳＡＰ５程序为手段，分析了多种情况过卷、卡罐瞬间机械系统各环节和井塔楼层结构动态反应的全过程；探索出了分析提升机械系统动力作用的计算方法，初步建立了过卷或卡罐作用下井塔楼层（包括防撞梁）结构计算理论及相应实用设计方法。
In the event of an accident, the mechanical system has a strong dynamic effect on the structure. In the structure design of a well tower, it is usually based on the equivalent static friction wheel accident load and over Volume load instead of the above dynamic effect. These load values, the structural design of the control role. Is the design department is very concerned about the problem; due to the understanding of the two loads, long-term experience and semi-empirical semi-theoretical stage, very different values at home and abroad. In this paper, for the first time, the accident investigation was started. According to the real mine, using the multi-degree freedom elastoplastic theory, ADINA and SAP5 programs as a means to analyze various aspects of over-rolling, instantaneous mechanical system of tank and tower floor structure dynamic The whole process of the reaction was explored, and the calculation method to enhance the dynamic effect of the mechanical system was explored. The calculation theory and corresponding practical design method of the well tower floor (including the anti-collision beam) under the action of over-winding or stuck-tank were preliminarily established.