【摘要】：本文在對馬圩東大堤隱患及其穩(wěn)定性和護岸安全性分析的基礎上,構建了一套多目標、多層次的安全評價指標體系,并利用綜合集成賦權方法分析各指標的重要性,建立安全評價模型,分析各堤段的安全性態(tài)。主要研究內容如下： (1)分析了馬圩東大堤存在的問題；研究了堤防隱患的類型及其探測方法,著重研究了探地雷達在馬圩東大堤安全檢測中的應用,并對探地雷達探測結果進行了解釋；研究了堤防滲流和邊坡穩(wěn)定性分析理論,利用二維有限元分析軟件對各代表斷面建立計算模型,對其滲流穩(wěn)定性和邊坡穩(wěn)定性進行了分析；利用ABAQUS有限元軟件對馬圩東大堤護岸結構的應力場進行了分析。 (2)依據堤防工程安全綜合評價指標體系建立的原則,并結合馬圩東大堤工程實際,從堤身安全性、堤基安全性、護岸安全性三個方面出發(fā),構建了一套多目標、多層次的綜合評價指標體系。 (3)對定性指標和定量指標的度量方法做了深入研究,提出使用專家區(qū)間打分法確定定性指標評價值,使用功效系數法對定量指標進行量化處理；研究了指標的賦權方法,鑒于客觀賦權法和主觀賦權法各自的缺陷,采用具有綜合集成特征的改進型拉開檔次法確定馬圩東大堤各指標的權重。 (4)研究了堤防工程的安全評價方法,著重研究了物元可拓模型在馬圩東大堤安全評價中的應用,分析了各堤段的安全性,得出各堤段均處于較安全級別的結論。
[Abstract]:Based on the analysis of the hidden trouble, stability and bank protection safety of the Dongda dike in Mawei, a set of multi-objective and multi-level safety evaluation index system is constructed, and the importance of each index is analyzed by using the comprehensive integrated weighting method. The safety evaluation model is established and the safety state of each section is analyzed. The main research contents are as follows: (1) the problems existing in the east embankment of Maxu are analyzed, the types and detection methods of the hidden dangers of the dike are studied, and the application of the ground penetrating radar in the safety detection of the east embankment of Maxu is emphatically studied. The analysis theory of seepage and slope stability of embankment is studied, and the calculation model of each representative section is established by using two-dimensional finite element analysis software, and the seepage stability and slope stability are analyzed. The stress field of the revetment structure of the east dike of Maxu is analyzed by using ABAQUS software. (2) according to the principle of comprehensive evaluation index system of dike safety, and combining with the practice of Dongdongdike project in Mawei, the safety of dike body is analyzed. A set of multi-objective and multi-level comprehensive evaluation index system is constructed from three aspects: safety of embankment foundation and safety of bank protection. (3) the measurement methods of qualitative index and quantitative index are deeply studied. Expert interval scoring method is used to determine the evaluation value of qualitative index and the efficiency coefficient method is used to quantify the quantitative index, and the weighting method of the index is studied, in view of the shortcomings of objective weighting method and subjective weighting method. The weight of each index of the east embankment of Maxu is determined by the improved open grade method with comprehensive integration characteristics. (4) the safety evaluation method of the levee engineering is studied. In this paper, the application of matter-element extension model in the safety evaluation of Dongda dyke in Maxu is studied, and the safety of each section is analyzed, and the conclusion is drawn that each embankment is in a safe level.
【學位授予單位】：揚州大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TV871

【參考文獻】

相關期刊論文 前10條

1 何金平,李珍照;大壩結構實測性態(tài)綜合評價指標體系研究[J];大壩觀測與土工測試;2000年06期

2 底青云,王妙月,嚴壽民,蘇迪源;高密度電阻率法在珠海某防波堤工程中的應用[J];地球物理學進展;1997年02期

3 汪自力,顧沖時,陳紅;堤防工程安全評估中幾個問題的探討[J];地球物理學進展;2003年03期

4 盧成明;秦臻;朱海龍;李修忠;;探地雷達檢測公路結構層隱含裂縫實用方法研究[J];地球物理學報;2007年05期

5 劉康和;應用K剖面法探測堤壩隱患[J];地質與勘探;1993年02期

6 王傳雷,祁明松,許順芳;堤防隱患及其勘察[J];地質裝備;2001年04期

7 陳蕾;曹邱林;;劉集地涵洞身結構有限元計算分析[J];水利與建筑工程學報;2010年06期

8 劉康和;;電反射系數法在探測堤壩隱患中的應用[J];工程勘察;1992年04期

9 李志林;可拓綜合評價方法及其應用特色[J];廣東工業(yè)大學學報;2000年02期

10 馬輝;;綜合評價系統(tǒng)中的客觀賦權方法[J];合作經濟與科技;2009年17期

，

本文編號：2274233