为了对坝体混凝土当前温控措施进行评价,结合分布式光纤测温技术,以实测数据为依据、以大坝施工技术要求为准绳,建立以周为单位的大坝混凝土温度状态评价指标体系。结合实际混凝土大坝温度控制情况,拟定等级评价标准,采用专家评分与熵权组成综合权重,运用模糊综合评价方法建立多目标模糊数学模型。将基于分布式光纤测温技术的温度状态评价应用于溪洛渡大坝混凝土现场施工,实践表明温度状态评价能较好地判断本周温控、温度状态的薄弱环节,为进行下周温控措施的调整提供依据。
Based on measured data and the technical requirements of a dam's construction,a weekly evaluation index system of concrete dam temperature was established using distributed optical fiber temperature measurement technology,in order to evaluate a dam's current temperature control.According to the temperature control status of the concrete dam,the evaluation criteria were classified.Based on the expert scoring method and entropy weight,a multi-objective fuzzy mathematical model was built using the fuzzy comprehensive evaluation method.The temperature evaluation system based on the distributed optical fiber temperature measurement technology was applied to the construction of Xiluodu Dam.The application results show that the evaluation system can estimate the weak link of temperature control in the present week and provide a basis for the adjustment of temperature control in the following week.