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构建了冻土区垂直井轴套环的环绕岩石部分与空气热交换的三维数学模型。模型充分考虑了冷却器的存在、冻结液体的温度、冻结孔的长度及其数量和位置、大气温度、矿内的空气不均匀度以及所包含岩石的盐分程度。模型可以计算并预测坑口桩承载能力的变化,并将该变化作为影响冷冻系统工作的一个因素。通过使用这种三维数学模型,可确定出最合理的冷冻系统状态(针对于ALROSA证券公司矿山的条件)。这些系统状态数据包括坑口桩的承载能力和尺寸<0.5 m坑轴阻尼解冻环轮保护混凝土衬砌免受坑轴冻结和可能发生的变形侵害。
A three-dimensional mathematical model for the heat exchange between the surrounding rocks of the vertical shaft sleeve and the air in the permafrost zone was constructed. The model takes full account of the presence of the cooler, the temperature of the frozen liquid, the length and the number and location of the frozen holes, the temperature of the atmosphere, the air inhomogeneities in the mine, and the degree of salinity of the rock contained. The model can calculate and predict the change of bearing capacity of the pocketed pile, and take this change as a factor that affects the work of the freezing system. By using this three-dimensional mathematical model, the most reasonable state of the freezer system for the conditions of the ALROSA securities mines can be determined. These system status data include the load capacity and size of the pit piles <0.5 m. Damping of the pit shaft. The thawing ring protects the concrete lining from the freezing of the pit shaft and possible deformations.