德州南水北调续建配套工程方案优化设计研究

发布时间：2018-11-13 13:10

【摘要】：德州市水资源供需矛盾突出，属资源性缺水地区。水资源短缺严重制约了经济社会的快速发展，同时出现了挤占问题。德州市区南水北调续建配套工程是南水北调东线一期工程鲁北段工程的重要组成部分，是充分发挥南水北调工程效益的工程建设项目。配套工程与德州市饮水安全工程和德州水网建设的结合实施对于缓解德州市区水资源总量不足、改善水环境、加快工农业发展、改善民生、保障安全用水具有十分重要的意义。而在工程项目建设之前，选择科学合理的工程线路和建筑物位置、材料等设计指标，是降低工程成本、保证质量、进度，确保工程合理安全开展的关键。本文主要结合德州市南水北调续建配套工程开展如下3个方面的研究：（1）了解德州市区社会经济及水文、地质等自然环境概况；通过分析德州市区现状水资源存在的问题，结合南水北调干线工程概况，阐述调水工程的必要性，分析工程的任务及规模；（2）提出不同供水线路方案和管材方案，以工程建设的经济因素，环境因素和安全因素为主要评价指标，建立了配套工程建设方案的综合评价指标体系，引入投影寻踪分类模型和熵权系数评价模型，对不同方案进行优选和评价；在计算过程中，，为减少过多专家打分项对评价结果的干扰，采用主成分分析法对专家打分项预先进行处理。（3）从工程的经济效益、社会效益和生态效益三个方面展望供水工程综合开发利用的前景。研究结果表明：方案1计算所得投影值和熵权系数评价值均处于3个方案中的最高水平，分别达到1.7509和1.3124；管材方案的优选过程中，夹砂玻璃钢管的投影值和熵权系数评价值均最高，分别达到1.8931和1.3931。因此，方案1，即管线上游沿六五河滩地、减河滩地、岔河滩地，管线下游两支分别沿岔河滩地和省道S353为综合条件最优的供水线路方案；而夹砂玻璃钢管为综合条件最优的管材。研究结果一方面为德州市区南水北调续建配套工程的顺利实施提供了科学的技术保障，另一方面也为今后统计学模型在水利工程方案优选中的合理应用提供了实践依据和有益参考。
[Abstract]:Dezhou city water resources supply and demand contradiction is prominent, belongs to the resources water shortage area. The shortage of water resources has seriously restricted the rapid development of economy and society, at the same time appeared the problem of overrun. The continued construction of the South-to-North Water transfer Project in Texas is an important part of the first phase of the South-to-North Water transfer Project of the Eastern Route of the South-to-North Water transfer Project. It is also an engineering construction project in which the benefits of the South-to-North Water transfer Project can be fully brought into play. The combination of supporting project with drinking water safety project in Dezhou city and the construction of water network in Dezhou city is of great significance in alleviating the shortage of water resources, improving the water environment, speeding up the development of industry and agriculture, improving people's livelihood and ensuring safe water use. Before the construction of the project, the key to reduce the project cost, ensure the quality and progress, and ensure the reasonable and safe development of the project is to select the scientific and reasonable design indexes such as the engineering route, the location of the building, the material and so on. In this paper, the following three aspects of research are carried out in conjunction with the continued construction of Dezhou South-to-North Water transfer Project: (1) understanding the natural environment, such as social economy, hydrology, geology and so on in the urban area of Texas; Based on the analysis of the existing problems of water resources in the urban area of Texas and the general situation of the South-to-North Water transfer Project, this paper expounds the necessity of the water transfer project, and analyzes the task and scale of the project. (2) put forward different water supply line scheme and pipe project, take the economic factor, environment factor and safety factor of engineering construction as the main evaluation index, set up the comprehensive evaluation index system of the supporting project construction scheme. Projection pursuit classification model and entropy weight coefficient evaluation model are introduced to select and evaluate different schemes. In the course of calculation, in order to reduce the interference of many experts on the evaluation results, the principal component analysis method is used to deal with the experts in advance. (3) from the economic benefit of the project, The prospect of comprehensive development and utilization of water supply project is prospected from three aspects: social benefit and ecological benefit. The results show that the projection value and the entropy weight coefficient are at the highest level of the three schemes, reaching 1.7509 and 1.3124 respectively. In the process of pipe selection, the projection value and entropy weight coefficient of sand filled glass pipe are the highest, reaching 1.8931 and 1.3931 respectively. Therefore, scheme 1, that is, upstream pipeline along the river beach, subtractive river beach, switch river beach, the two downstream of the pipeline along the river beach and provincial road S353 as the optimal comprehensive conditions of the optimal water supply line scheme; The sand-filled glass pipe is the best pipe under the comprehensive conditions. On the one hand, the results of the study provide a scientific and technical guarantee for the smooth implementation of the supporting project for the continued construction of the South-to-North Water transfer Project in the urban area of Texas. On the other hand, it also provides practical basis and useful reference for the rational application of statistical model in water conservancy project selection in the future.
【学位授予单位】：中国海洋大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV68

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