【摘要】：我國是一個筑壩大國，在已建成的水庫大壩中，以土石壩數(shù)目最多，土石壩的安全問題受到越來越多的重視。為了解壩體的真實安全狀況，有必要對大壩原型觀測資料進行處理和分析，綜合考慮影響土石壩安全的各種因素，對壩體性態(tài)做出一個完整的、全面的評價，進而針對評價結(jié)果采取相應(yīng)的措施以保證大壩安全運行。 論文針對最小二乘法在求解回歸參數(shù)時沒有考慮異方差的問題，利用加權(quán)最小二乘法對其改進，并用加權(quán)最小二乘法對土石壩滲流觀測資料進行了分析；考慮到土石壩安全評價體系的實際特點，提出了模糊網(wǎng)絡(luò)分析模型，該模型適宜于解決模糊性和不確定性問題，并且其中包含的網(wǎng)絡(luò)分析法使權(quán)重的確定更加客觀。 具體的內(nèi)容有以下幾個方面： （1）從理論上分析了幾種常用的回歸分析方法的優(yōu)缺點，針對最小二乘法的不足，應(yīng)用加權(quán)最小二乘法來消除異方差現(xiàn)象，并結(jié)合實例加以應(yīng)用。 （2）分析了目前較常用的幾種多指標(biāo)綜合評價方法，針對本文研究的實際問題，將模糊綜合評判法和網(wǎng)絡(luò)分析法相結(jié)合，并引入“三角模糊數(shù)”理論，，構(gòu)造基于三角模糊數(shù)的模糊網(wǎng)絡(luò)分析法。 （3）將模糊網(wǎng)絡(luò)分析法運用到實際水庫大壩的安全綜合評價中，以驗證方法的合理性。同時，將模型的計算結(jié)果與模糊層次分析法的結(jié)果進行對比，結(jié)果表明模糊網(wǎng)絡(luò)分析法有一定的優(yōu)越性。
[Abstract]:China is a large dam construction country, among which the earth-rock dam has the largest number, and the safety of earth-rock dam has been paid more and more attention. In order to understand the true safety condition of the dam, it is necessary to process and analyze the observation data of the dam prototype, synthetically consider the various factors affecting the safety of the earth-rock dam, and make a complete and comprehensive evaluation of the dam behavior. Then the corresponding measures are taken to ensure the safe operation of the dam. Aiming at the problem that the least square method does not take heteroscedasticity into account in solving the regression parameters, the weighted least square method is used to improve the method and the weighted least square method is used to analyze the seepage observation data of earth-rock dams. Considering the practical characteristics of the safety evaluation system for earth-rock dams, a fuzzy network analysis model is proposed, which is suitable for solving the fuzzy and uncertain problems, and the network analysis method contained therein makes the weight determination more objective. The specific contents are as follows: (1) the advantages and disadvantages of several commonly used regression analysis methods are analyzed theoretically, and the weighted least square method is used to eliminate the heteroscedasticity phenomenon in view of the shortcomings of the least square method. And the application is combined with examples. (2) several commonly used multi-index comprehensive evaluation methods are analyzed. In view of the practical problems studied in this paper, the fuzzy comprehensive evaluation method is combined with the network analysis method. The theory of "triangular fuzzy number" is introduced to construct the fuzzy network analysis method based on triangular fuzzy number. (3) the fuzzy network analysis method is applied to the comprehensive evaluation of reservoir dam safety in order to verify the rationality of the method. At the same time, the calculation results of the model are compared with the results of the fuzzy analytic hierarchy process, the results show that the fuzzy network analysis has some advantages.
【學(xué)位授予單位】：鄭州大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TV641;TV698.1

【參考文獻】

相關(guān)期刊論文 前10條

1 宋子龍;魏永強;陳金干;王祥;;集線式水庫大壩安全監(jiān)測系統(tǒng)設(shè)計[J];傳感技術(shù)學(xué)報;2012年01期

2 李珍照;張淑麗;;大壩觀測數(shù)據(jù)的模糊分析[J];大壩觀測與土工測試;1992年01期

3 王紹泉;多層次閾值模糊綜合評判在分析大壩安全中的應(yīng)用[J];大壩觀測與土工測試;1997年04期

4 王暉;陳麗;陳墾;薛漫清;梁慶;;多指標(biāo)綜合評價方法及權(quán)重系數(shù)的選擇[J];廣東藥學(xué)院學(xué)報;2007年05期

5 白慧強;;主成分分析法在SPSS中的應(yīng)用——以文峪河河岸帶林下草本群落為例[J];科技情報開發(fā)與經(jīng)濟;2009年09期

6 李博;;多指標(biāo)綜合評價方法應(yīng)用中存在的問題與對策[J];沈陽工程學(xué)院學(xué)報(社會科學(xué)版);2010年02期

7 韓立煒;張宏洋;李松平;;土石壩滲流安全的云動態(tài)評價方法[J];華北水利水電學(xué)院學(xué)報;2012年04期

8 酈能惠,蔡飛,沈珠江;土石壩原型觀測資料分析方法的研究[J];水電能源科學(xué);2000年02期

9 何金平,李珍照,施玉群;大壩結(jié)構(gòu)實測性態(tài)綜合評價方法研究[J];水力發(fā)電學(xué)報;2001年02期

10 陳久宇;應(yīng)用實測位移資料研究劉家峽重力壩橫縫的結(jié)構(gòu)作用[J];水利學(xué)報;1982年12期

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