水闸安全评价指标体系研究

发布时间：2018-06-05 05:55

本文选题：水闸 + 安全评价　；参考：《天津农学院》2017年硕士论文

【摘要】：水闸作为水利工程中的主要水工建筑物,它的主要作用是挡水和泄水。许多始建年代久远的水闸都不同程度存在着老化损毁问题,加之水闸的重要性,近年来人们开始重视水闸的安全性问题,并对存在问题的水闸进行了调查研究。国内外学者已对水闸的安全评价进行了深入的研究,但是与水利工程中其他大型建筑物的安全评价研究对比而言,国内外学者对水闸安全的研究工作还是偏少。水闸的安全系统比较复杂,影响水闸安全的因素众多,内外因皆有。而不同的学者对水闸安全评价指标的认识和理解不同,则当某一项指标不达标时,到底是除险加固还是拆除重建,不同的学者都有不一样的看法,最终的评价结果存在一定的误差。所以,在水闸安全评价的实际工作中仍缺乏一套合理、准确、科学的评价方法。为了能客观准确的判断水闸的的安全状态,有必要在现有规范和前人研究的基础上做出一个较完备的水闸安全评价指标体系。针对水闸的安全评价的相关问题,本文在分析总结了国内外学者对水工建筑安全评价的各种方法以后,结合天津市水闸工程的特点,对水闸的安全评价指标体系进行了初步研究,主要成果如下:(1)搜集了有关水闸的各方面资料,统计、分析、研究了引起水闸病害的根本原因,为水闸安全评价的指标选取提供了依据。(2)在充分了解和掌握了水闸安全评价的基本程序、准则与依据的基础上,根据水闸安全评价指标体系的拟定原则,建立了一套完整的水闸安全评价指标体系。(3)通过对水闸安全评价指标各种赋权方法的比较和总结,提出了改进的层次分析法对水闸安全评价指标进行赋权。(4)研究了如何对水闸安全评价指标进行无量纲化处理,确定了基础层指标的评分方法。(5)运用改进的层次分析法对海河二道闸、北排河挡潮闸、宁车沽防潮闸进行了安全综合评价,评价得到的水闸安全等级与实际根据专家经验鉴定的结果相同,验证了改进的层次分析法的准确可行性和易操作性。
[Abstract]:As the main hydraulic structure in hydraulic engineering, sluice is mainly used to keep water and drain water. Many long-established sluices have the problem of aging and damage to varying degrees, in addition to the importance of sluices, people have begun to pay attention to the safety of sluices in recent years, and the existing problems of the floodgates have been investigated and studied. Scholars at home and abroad have carried out in-depth research on the safety evaluation of sluices, but compared with other large buildings in water conservancy projects, the research work on sluice safety by domestic and foreign scholars is still on the low side. The safety system of sluice is complex, there are many factors influencing the safety of sluice, both inside and outside. But different scholars have different understanding and understanding of the safety evaluation index of sluice. When a certain index is not up to the standard, different scholars have different views on whether to remove danger and reinforce or demolish and rebuild it. There are some errors in the final evaluation results. Therefore, in the practical work of sluice safety evaluation, there is still lack of a reasonable, accurate, scientific evaluation method. In order to judge the safety state of sluice objectively and accurately, it is necessary to make a complete evaluation index system of sluice safety on the basis of existing norms and previous studies. In view of the problems related to the safety evaluation of sluices, this paper, after analyzing and summarizing the various methods used by domestic and foreign scholars to evaluate the safety of hydraulic structures, combines the characteristics of Tianjin sluice engineering. The safety evaluation index system of sluice is studied preliminarily. The main results are as follows: 1) collecting all aspects of information about sluice, statistics and analysis, and studying the root cause of the disease of sluice. It provides a basis for the selection of sluice safety evaluation index. (2) on the basis of fully understanding and mastering the basic procedure, criterion and basis of sluice safety evaluation, and according to the formulation principle of sluice safety evaluation index system, A complete evaluation index system of sluice safety is established. The improved Analytic hierarchy process (AHP) is proposed to weigh the sluice safety evaluation index. (4) how to deal with the sluice safety evaluation index in a dimensionless manner is studied. The evaluation method of foundation layer index is determined. (5) the safety comprehensive evaluation of Haihe Erdaoga sluice, Beipahe tidal barrier gate and Ningchegu damp-proof sluice is carried out by using the improved analytic hierarchy process (AHP). The safety grade of sluice obtained by evaluation is the same as that obtained from actual expert experience, which verifies the accuracy, feasibility and ease of operation of the improved Analytic hierarchy process (AHP).
【学位授予单位】：天津农学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TV66

【参考文献】