Application of projection pursuit method in pumping station safety evaluation
CAO Ruizhe1,2, TIAN Lang1,2, GUO Rong1,2, XIAO Junlong1,2
1.Key Laboratory of Efficient Irrigation-Drainage and Agriculture Soil-Water Environment in Southern China, Hohai University, Nanjing, Jiangsu 210098, China; 2.College of Water Conservancy and Hydropower, Hohai University, Nanjing, Jiangsu 210098, China
Abstract:In order to evaluate the in-service pumping station building security status, a pumping station building safety evaluation system is built. Importance of safety evaluation index is analyzed, the projection pursuit method which is an objective weighting method of pumping station building safety evaluation is specially analyzed. Data is calculated according to the measured value of the pumping station building safety evaluation index. It is calculated through the projection pursuit method model, and the calculation results are analyzed,combined with the principle of projection pursuit method based on genetic algorithm. A pumping station in Jiangsu Province is used as an example. Index importanc of each index layer of the pumping station building security status is studied. Two indicator layers: concrete structure safety status and station body stability safety status indicators layer are studied. The projection pursuit model is used to analyze the importance of each evaluation index under each indicator layer. Matlab genetic algorithm toolbox is applied to compute each evaluation index weight. The results show that the measured strength of concrete is most important in the pumping station concrete structure safety status indicator layer, and the index weight of stability against sliding in the pumping station stand body stability safety index layer is the largest.
[1]陈坚,李琪,许建中,等.中国泵站工程现状及“十一五”期间泵站更新改造任务[J].水利水电科技进展,2008,28(2):84-88. CHEN Jian, LI Qi, XU Jianzhong, et al. Current status of pump stations in China and their renovation and rebuilding according to the 11th Five-Year Plan[J]. Advances in science and technology of water resources,2008,28(2):84-88.(in Chinese)[2]刘竹溪,冯广志.中国泵站工程[M].北京:水利电力出版社.1993.[3]郭亚军. 综合评价理论、方法及拓展[M].北京:科学出版社.2012.[4]PULFORD J, ADAMS P, SHERIDAN J. Developing a clinical assessment model suited to use in an agency providing short-term substance use treatment: findings from a Delphi survey of expert opinion[J]. Administration & policy in mental health & mental health services research, 2009, 36(5):322-330.[5]许文婷. 基于遗传算法的大型泵站工程安全综合评价模型研究[D].扬州:扬州大学,2012.[6]周玉良. 水安全问题中的智能非参数方法[D].合肥:合肥工业大学,2006.[7]金菊良,杨晓华,丁晶.标准遗传算法的改进方案——加速遗传算法[J].系统工程理论与实践,2001,21(4):8-13. JIN Juliang, YANG Xiaohua, DING Jing. An improved simple genetic algorithm—accelerating genetic algorithm[J]. Systems engineering-theory & practice,2001(4):8-13.(in Chinese)[8]田铮,林伟. 投影寻踪方法与应用[M]. 西安:西北工业大学出版社,2008.[9]金菊良,张欣莉,丁晶. 评估洪水灾情等级的投影寻踪模型[J].系统工程理论与实践, 2002(2):140-144. JIN Juliang, ZHANG Xinli, DING Jing. Projection pursuit model for evaluating grade of flood disaster loss[J]. Systems engineering-theory & practice,2002(2):140-144.(in Chinese)[10]陈曜,丁晶,赵永红.基于投影寻踪原理的四川省洪灾评估[J].水利学报. 2010,41(2):220-224. CHEN Yao,DING Jing,ZHAO Yonghong. Assessment on flood disaster in Sichuan Province based on the principle of projection pursuit method[J]. Journal of hydraulic engineering.2010,41(2):220-224.(in Chinese)[11]封志明,郑海霞,刘宝勤.基于遗传投影寻踪模型的农业水资源利用效率综合评价[J].农业工程学报,2005,21(3):66-70. FENG Zhiming, ZHENG Haixia, LIU Baoqin. Comprehensive evaluation of agricultural water use efficiency based on genetic projection pur suit model [J]. Transa-ctions of the Chinese society of agricultural engineering, 2005, 21(3): 66-70.(in Chinese).[12]陈广洲,解华明,鲁祥友.Matlab遗传算法工具箱在非线性优化中的应用[J].计算机技术与发展,2008,18(3):246-249. CHEN Guangzhou, XIE Huaming, LU Xiangyou. Nonlinear optimization based on genetic algorithm toolbox of Matlab[J]. Computer techology and development,2008,18(3):246-249.(in Chinese)[13]何逢标.综合评价方法MATLAB实现[M].北京:中国社会科学出版社,2010.[14]李贝.大中型泵站工程的健康诊断方法研究[D].扬州:扬州大学,2010.[15]金秋.混凝土坝健康诊断指标体系及指标重要性分析方法研究[D].南京:河海大学,2010.