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蒲石河混凝土面板堆石坝沉降特性分析

DOI: 10.6052/1000-0879-13-398, PP. 201-206

Keywords: 混凝土面板堆石坝,变形特性,观测数据,非线性回归分析,数值模拟

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Abstract:

为了研究堆石坝竣工期的垂直和水平变形特性,采用ABAQUS软件中的单元生死方法数值模拟了堆石坝的分层浇筑过程.建立了堆石坝变形与上游水位、环境温度和时效之间的非线性关系模型.采用多元非线性回归分析方法,根据现场观测数据确定了堆石坝变形模型中的参数.研究表明,堆石坝沉降变形具有较好的规律性,沉降变形预测模型预测结果与现场观测值基本一致.

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