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通过水文气象要素实现对冰基本物理和力学性质参数的评估,结合不同类型结构物承受冰作用力的计算方法,实现对结构物实时承受冰作用力的评价.在此基础上实现对结构物所承受作用力与该结构物设计抗冰能力的比较,并将该比值作为预警关键指标.以直立结构物为例,建立了依据结构物的安全运营、正常的生产作业和人员舒适度三方面的综合预警阈值,形成完整的预警流程.在实践中,需要针对具体结构物类型,一是根据结构物操作规程和经验积累调整阈值的范围;二是继续积累不同破坏方式的大应变速率(位移速率)的冰强度试验统计结果.
Through the hydrological and meteorological elements to achieve the ice basic physical and mechanical properties of the parameters of assessment, combined with different types of structures to withstand the ice force calculation method, to achieve real-time structure of the ice to withstand the force of evaluation.On this basis to achieve the structure Bear the force and the design of the structure of anti-ice capacity comparison, and the ratio as a key indicator of early warning.Use of vertical structures, for example, established based on the safe operation of the structure, the normal production operations and personnel comfort three aspects Comprehensive early warning threshold, the formation of a complete warning process.In practice, the need for specific types of structures, one is based on the structure of the operating procedures and experience to adjust the scope of the threshold adjustment; the second is to continue to accumulate different failure modes of large strain rate (displacement rate ) Ice strength test statistics.