發(fā)布時(shí)間：2018-06-15 10:42

  本文選題：稍門平原水庫 + 滲流分析��； 參考：《山東大學(xué)》2014年碩士論文

【摘要】：本文通過對(duì)稍門平原水庫進(jìn)行有限元滲流分析,應(yīng)用軟件建立壩體滲流數(shù)學(xué)模型并進(jìn)行模擬,計(jì)算得到滲流要素(如滲透水頭、滲透壓力、滲透坡降、滲透流速以及滲流量等等)。通過這些滲流要素對(duì)滲透穩(wěn)定性進(jìn)行分析,在計(jì)算剖面的寬心墻下游浸潤線溢出點(diǎn)較高,大于允許水力比降,并且該剖面附近壩基砂礫石沒有開挖截水槽,因此存在一定的安全隱患,存在一定的滲透變形的可能性,在高水位的長期作用下,存在滲透破壞的可能性。為避免壩體、壩基產(chǎn)生滲透破壞,必須采取全面防滲的措施,才能有效的防滲。接著通過滲流分析得到的結(jié)論,對(duì)壩體進(jìn)行穩(wěn)定性分析,其中應(yīng)軟件對(duì)壩體進(jìn)行數(shù)值模擬,進(jìn)行壩體穩(wěn)定分析,得到該大壩上游坡和下游坡穩(wěn)定安全系數(shù)均大于規(guī)范要求值,不存在結(jié)構(gòu)穩(wěn)定安全問題。
[Abstract]:Through the finite element seepage analysis of Zhaomen Plain Reservoir, the mathematical model of seepage flow of the dam body is established and simulated by using software, and the seepage elements (such as seepage head, seepage pressure, seepage gradient) are calculated. Osmotic flow rate and seepage flow rate and so on. Through the analysis of these seepage elements, the seepage stability is analyzed. The overflow point is higher than the allowable hydraulic ratio in the downstream infiltration line of the calculation section of the broad-core wall, and no cut flume is excavated near the dam foundation sand gravel near the section. Therefore, there are some hidden dangers of safety, the possibility of seepage deformation and the possibility of seepage failure under the action of high water level for a long time. In order to avoid seepage damage of dam body and dam foundation, comprehensive seepage prevention measures must be taken in order to effectively prevent seepage. Then through the conclusion of seepage analysis, the stability analysis of dam body is carried out, in which the numerical simulation of dam body and the stability analysis of dam body are carried out by software, and the stability safety factor of upstream and downstream slopes of the dam is higher than the required value of the code. There is no structural stability and security problem.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TV62;TV223.4

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本文編號(hào)：2021736