高拱坝多效应量改进型D-S证据理论融合模型

Multi-effect-quantity Fusion Model of High Arch Dam Based on Improved D-S Evidence Theory

针对目前高拱坝监测资料分析中单效应量分析方法存在的不足,将数据融合技术中的D-S证据理论引入到高拱坝多效应量融合建模之中,提出了一种适合于高拱坝D-S证据融合评价的新的融合系数运算公式,建立了基于改进型证据理论的高拱坝多效应量融合模型。工程实例分析表明,该方法合理、可行,并可降低高拱坝安全评价中的不确定性与未知性。

Aiming at the deficiency of single effect quantity analysis method of high arch dam safety monitoring, we introduce a data fusion theory named D-S evidence theory into multi- effect quantity fusion model of high arch dam. A new formula for calculating the fusion coef- ficient is put forward suitable for D-S evidence fusion evaluation to high arch dam safety, and a multi-effect quantity fusion model of high arch dam is established based on improved D-S evidence theory. The results of engineering example indicates that this method is reasonable and feasible, which not only provide a new way for high arch dam multi-effect quantity com- prehensive evaluation, but also can reduce uncertainty and unacknowledged in high arch dam safety evaluation.