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加筋风积沙挡墙工作机理的离心模型试验

, PP. 30-33

Keywords: 道路工程,加筋风积沙挡墙,离心模型试验,工作机理

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Abstract:

?采用能够完全满足模型相似律的离心模型试验方法,基于整体刚性面板加筋土挡墙结构,研究加筋风积沙挡墙的变形、加筋材料的应变分布等加筋风积沙挡墙的工作机理。试验分析结果表明:在一定范围内,加筋层竖向间距越小,加筋效果越好;加筋材料合理铺设方式应为从回填区底部至上部使加筋材料长度由短变长;同一加筋层拉应变呈中部大、两端小的分布形式。此外,在进行加筋风积沙挡墙的内部稳定性验算时,应注意加筋材料被拔出的可能性。

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