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为定量分析高拱坝坝体及坝基强度安全裕度,以时间序列法为理论基础,根据应力计及应变计的监测数据系列计算出坝体及坝基的实测应力,利用实测应力与容许应力的差值和标准应力的比值构建强度安全裕度场,建立了高拱坝坝体及坝基强度安全裕度分析评价模型。通过对监测数据的分析计算,实时反馈拱坝坝体及坝基强度安全裕度水平,并对强度安全裕度进行了二步预测,通过对比预测值与实测值,验证了模型的有效性。
In order to quantitatively analyze the strength and safety margin of the high arch dam and the foundation, based on the time series method, the measured stress of the dam and the dam foundation is calculated based on the monitoring data series of the stress gauge and strain gauge. The measured stress and the allowable stress The ratio of difference and standard stress is used to construct the strength and safety margin field, and the analysis and evaluation model of the strength and safety margin of the high arch dam and its foundation is established. Through the analysis and calculation of the monitoring data, the strength and safety margin of arch dam and dam foundation are fed back in real time. The strength and safety margin is two-step predicted. By comparing the predicted value with the measured value, the validity of the model is verified.