某沥青混凝土心墙堆石坝变形特性分析
发布时间：2019-05-15 08:35
【摘要】：高坝大库水电站中沥青混凝土心墙堆石坝所处地形地质环境复杂、心墙单薄、荷载大、应力水平高以及大坝渗流与变形机理复杂,因而大坝的运行安全掌控与评价难度很大。为此,结合已建的某高沥青心墙堆石坝工程,研究原型观测特性及三维应力变形规律,并将数值模拟结果与原型观测数据进行比较。结果表明,坝体最大沉降为1.56m,发生在约为坝体1/2高程处,最大沉降约为坝高的1.2%;大坝变形特性符合心墙堆石坝变形的一般规律,大坝右岸沉降变形较左岸大,整体而言,大坝变形趋于稳定,数值模拟与原型观测数据基本一致。
[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，
本文编号：2477363
[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，
本文编号：2477363
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