投影寻踪法在泵站建筑物安全评价中的应用

发布时间：2018-04-02 12:02

本文选题：泵站　切入点：客观赋权　出处：《排灌机械工程学报》2016年02期

【摘要】：为了评价在役泵站工程建筑物安全状况,建立了泵站工程建筑物安全评价指标体系.对安全评价指标重要性进行分析,着重分析了泵站工程建筑物安全评价客观赋权方法之一的投影寻踪方法.根据泵站工程建筑物安全评价指标的实测值求计算数据,通过投影寻踪法模型计算并联系基于遗传算法的投影寻踪计算原理分析计算结果.利用江苏省某泵站作为实例,对影响泵站建筑物安全状态各指标层指标重要性进行分析,分别对混凝土结构安全状态和站身稳定安全状态2个指标层进行了研究.利用投影寻踪计算模型分析各指标层下各评价指标重要性,应用Matlab自带的遗传算法工具箱进行具体计算.计算结果表明,此泵站混凝土结构安全状态指标层中混凝土实测强度最为重要,而泵站站身稳定安全指标层中站身抗滑稳定这一指标权重最大.
[Abstract]:In order to evaluate the safety status of the buildings in service pumping stations, a safety evaluation index system for pumping stations is established, and the importance of the safety evaluation indexes is analyzed. The projection pursuit method, which is one of the objective weighting methods for evaluating the safety of pumping station engineering buildings, is emphatically analyzed. The calculated data are calculated according to the measured values of the safety evaluation indexes of the pumping station engineering buildings. By using projection pursuit method model calculation and connecting with the calculation principle of projection pursuit calculation based on genetic algorithm, the importance of each index index of influencing the safety state of pumping station building is analyzed by using a pumping station in Jiangsu Province as an example. The safety state of concrete structure and the safety state of standing body are studied respectively. The importance of evaluation indexes under each index layer is analyzed by using projection pursuit calculation model. The genetic algorithm toolbox of Matlab is used to calculate the concrete structure. The calculation results show that the concrete measured strength is the most important in the concrete structure safety state index layer of this pumping station. The weight of this index is the largest in the safety index layer of pump station body stability.
【作者单位】：河海大学南方地区高效灌排与农业水土环境教育部重点实验室;河海大学水利水电学院;
【基金】：国家自然科学基金重点资助项目(41323001)
【分类号】：TV675

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