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德州南水北調(diào)續(xù)建配套工程方案優(yōu)化設(shè)計研究

發(fā)布時間:2018-11-13 13:10
【摘要】:德州市水資源供需矛盾突出,屬資源性缺水地區(qū)。水資源短缺嚴重制約了經(jīng)濟社會的快速發(fā)展,同時出現(xiàn)了擠占問題。德州市區(qū)南水北調(diào)續(xù)建配套工程是南水北調(diào)東線一期工程魯北段工程的重要組成部分,是充分發(fā)揮南水北調(diào)工程效益的工程建設(shè)項目。配套工程與德州市飲水安全工程和德州水網(wǎng)建設(shè)的結(jié)合實施對于緩解德州市區(qū)水資源總量不足、改善水環(huán)境、加快工農(nóng)業(yè)發(fā)展、改善民生、保障安全用水具有十分重要的意義。而在工程項目建設(shè)之前,選擇科學合理的工程線路和建筑物位置、材料等設(shè)計指標,是降低工程成本、保證質(zhì)量、進度,確保工程合理安全開展的關(guān)鍵。 本文主要結(jié)合德州市南水北調(diào)續(xù)建配套工程開展如下3個方面的研究:(1)了解德州市區(qū)社會經(jīng)濟及水文、地質(zhì)等自然環(huán)境概況;通過分析德州市區(qū)現(xiàn)狀水資源存在的問題,結(jié)合南水北調(diào)干線工程概況,闡述調(diào)水工程的必要性,分析工程的任務(wù)及規(guī)模;(2)提出不同供水線路方案和管材方案,以工程建設(shè)的經(jīng)濟因素,環(huán)境因素和安全因素為主要評價指標,建立了配套工程建設(shè)方案的綜合評價指標體系,引入投影尋蹤分類模型和熵權(quán)系數(shù)評價模型,對不同方案進行優(yōu)選和評價;在計算過程中,,為減少過多專家打分項對評價結(jié)果的干擾,采用主成分分析法對專家打分項預先進行處理。(3)從工程的經(jīng)濟效益、社會效益和生態(tài)效益三個方面展望供水工程綜合開發(fā)利用的前景。 研究結(jié)果表明:方案1計算所得投影值和熵權(quán)系數(shù)評價值均處于3個方案中的最高水平,分別達到1.7509和1.3124;管材方案的優(yōu)選過程中,夾砂玻璃鋼管的投影值和熵權(quán)系數(shù)評價值均最高,分別達到1.8931和1.3931。因此,方案1,即管線上游沿六五河灘地、減河灘地、岔河灘地,管線下游兩支分別沿岔河灘地和省道S353為綜合條件最優(yōu)的供水線路方案;而夾砂玻璃鋼管為綜合條件最優(yōu)的管材。研究結(jié)果一方面為德州市區(qū)南水北調(diào)續(xù)建配套工程的順利實施提供了科學的技術(shù)保障,另一方面也為今后統(tǒng)計學模型在水利工程方案優(yōu)選中的合理應(yīng)用提供了實踐依據(jù)和有益參考。
[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.
【學位授予單位】:中國海洋大學
【學位級別】:碩士
【學位授予年份】:2014
【分類號】:TV68

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