【摘要】：高壩大庫水電站中瀝青混凝土心墻堆石壩所處地形地質(zhì)環(huán)境復雜、心墻單薄、荷載大、應(yīng)力水平高以及大壩滲流與變形機理復雜,因而大壩的運行安全掌控與評價難度很大。為此,結(jié)合已建的某高瀝青心墻堆石壩工程,研究原型觀測特性及三維應(yīng)力變形規(guī)律,并將數(shù)值模擬結(jié)果與原型觀測數(shù)據(jù)進行比較。結(jié)果表明,壩體最大沉降為1.56m,發(fā)生在約為壩體1/2高程處,最大沉降約為壩高的1.2%;大壩變形特性符合心墻堆石壩變形的一般規(guī)律,大壩右岸沉降變形較左岸大,整體而言,大壩變形趨于穩(wěn)定,數(shù)值模擬與原型觀測數(shù)據(jù)基本一致。
[Abstract]:The terrain and geological environment of asphalt concrete core rockfill dam in Gaoba Daku Hydropower Station is complex, the core wall is thin, the load is large, the stress level is high and the seepage and deformation mechanism of the dam is complex, so it is very difficult to control and evaluate the operation safety of the dam. Therefore, combined with a high asphalt core rockfill dam project, the prototype observation characteristics and three-dimensional stress and deformation law are studied, and the numerical simulation results are compared with the prototype observation data. The results show that the maximum settlement of the dam body is 1.56 m, which occurs at the elevation of 1 鈮，

本文編號：2477363