本文選題：有限元　切入點：ANSYS　出處：《華北水利水電大學(xué)》2016年碩士論文

【摘要】：土石壩是最古老的,同時也是應(yīng)用最普遍的壩型。無論是在國內(nèi)還是在國外,土石壩與其他壩型比較都占據(jù)著絕對的優(yōu)勢。而土石壩在完工后能否安全運行顯得尤為重要,這也使得很多專業(yè)的研究人員對土石壩的安全性及穩(wěn)定性不斷的進行著探索和研究。我國在建國初期修建了很多土石壩壩型的水庫,而在這批水庫中以中小型水庫居多,鑒于當時的條件和科技水平下,大多數(shù)是一些“三邊”(邊勘察、邊設(shè)計、邊施工)工程。經(jīng)過幾十年的運行,大多數(shù)的水庫己出現(xiàn)病險現(xiàn)象,對這些水庫進行重新檢測及綜合評估,在此基礎(chǔ)上對其進行除險加固顯得非常必要。而滲流問題一直是導(dǎo)致土石壩破壞的重要問題,也是眾多研究人員關(guān)注的重中之重。土壩的發(fā)展史一直伴隨著滲流學(xué)的發(fā)展,雖然至今有很多研究滲流問題的方法,但切合工程實際并能準確計算演示滲流情況的方法卻依然很少。隨著我國小型水庫除險加固過程的推進與加快,使實際工程滲流問題能夠得到簡便、精確的計算方法更顯得重要與迫切。本文以工程實例為基礎(chǔ),首先在CAD軟件中建立數(shù)值模型,之后利用ANSYS軟件的強大分析處理功能以及熱分析模塊與滲流場的相似性,運用熱分析模塊對某中型水庫的數(shù)值仿真模型進行滲流分析,計算得到某中型水庫加固前后的滲流情況,得出加固前后壩體的滲透坡降、單寬滲流量、溢出點高程,為科學(xué)經(jīng)濟的加固方案提供了理論依據(jù)。而對類似的病險水庫進行除險加固,若運用本文計算滲流方法可以在得到較切合實際的滲流數(shù)據(jù),更夠能切合實際工程地采取防滲措施進而減少加固成本。鑒于目前我國正在加快小水庫除險加固進程,利用該方法能夠更加科學(xué)合理地采取相應(yīng)的加固方案,這對除險加固工程方案更能夠達到經(jīng)濟、合理、高效的目的。
[Abstract]:Earth-rock dam is the oldest and most widely used dam type.Both at home and abroad, earth-rock dams have an absolute advantage over other dam types.It is very important for earth and rock dam to operate safely after completion, which makes many professional researchers explore and study the safety and stability of earth and rock dam.In the early days of the founding of the people's Republic of China, many earth-rock dam dams were built in our country, and most of these reservoirs were small and medium-sized ones. In view of the conditions and the level of science and technology at that time, most of them were "trilateral" projects (while surveying, designing and constructing).After several decades of operation, most of the reservoirs have appeared dangerous phenomenon, so it is necessary to re-examine and evaluate these reservoirs, on the basis of which it is very necessary to reinforce them.The seepage problem has been an important problem leading to the destruction of earth-rockfill dams, and is also the most important concern of many researchers.The development of earth dams has been accompanied by the development of seepage science. Although there are many methods to study seepage problems, there are still few methods that can accurately calculate seepage flow in engineering practice.With the advance and acceleration of the strengthening process of small reservoirs in China, it is more important and urgent to obtain a simple and accurate calculation method for practical engineering seepage problems.In this paper, based on engineering examples, a numerical model is established in CAD software, and then the strong analysis and processing function of ANSYS software and the similarity between thermal analysis module and seepage field are used.The numerical simulation model of a medium-sized reservoir is analyzed by using thermal analysis module, and the seepage situation before and after reinforcement is calculated, and the seepage slope, single wide seepage flow and overflow height of the dam before and after reinforcement are obtained.It provides a theoretical basis for the scientific and economic reinforcement scheme.If the seepage method is used in this paper, the seepage data can be obtained, and the anti-seepage measures can be taken in practical engineering to reduce the reinforcement cost.In view of the fact that our country is speeding up the process of danger removal and reinforcement of small reservoirs, the corresponding reinforcement scheme can be adopted more scientifically and reasonably by using this method, which can achieve the purpose of economic, reasonable and efficient.
【學(xué)位授予單位】：華北水利水電大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TV641;TV223.4

【參考文獻】

相關(guān)期刊論文 前10條

1 陳水平;;土壩的滲流問題及其控制措施分析[J];廣東科技;2014年14期

2 王鑫;趙才全;梁軍;;有限元法在土石壩滲流穩(wěn)定分析中的運用[J];治淮;2013年07期

3 劉杰;謝定松;;我國土石壩滲流控制理論發(fā)展現(xiàn)狀[J];巖土工程學(xué)報;2011年05期

4 包淑蓮;;小型水庫除險加固措施[J];科技資訊;2009年23期

5 井緒東;;滲流力學(xué)的發(fā)展及應(yīng)用[J];科技資訊;2009年12期

6 孔祥言;盧德唐;;滲流力學(xué)的理論應(yīng)用及其前沿研究[J];中國科學(xué)技術(shù)大學(xué)學(xué)報;2007年10期

7 汪桂芹;吳德文;呂巖;;截水槽施工在土石壩基礎(chǔ)防滲處理中的應(yīng)用[J];黑龍江水利科技;2006年03期

8 王補宣;多孔介質(zhì)中單相對流換熱分析的流體滲流模式[J];上海交通大學(xué)學(xué)報;1999年08期

9 劉潔,毛昶熙;堤壩飽和與非飽和滲流計算的有限單元法[J];水利水運科學(xué)研究;1997年03期

10 葉觀寶，葉書麟;水泥土攪拌樁加固軟基的試驗研究[J];同濟大學(xué)學(xué)報(自然科學(xué)版);1995年03期

，

本文編號：1719667