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拉拔荷载下黄土隧道系统锚杆力学特性分析

DOI: 10.3969/j.issn.1674-0696.2013.04.21, PP. 633-635

Keywords: 黄土隧道,系统锚杆,剪应力分布,轴力分布,受力特性,loesstunnel,systematicanchor,shearstressdistribution,axialforcedistribution,forcingcharacteristics

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Abstract:

:?基于Mindlin问题的位移解导出了拉拔荷载作用下砂浆锚杆的剪应力分布和轴力分布的弹性解。依托岢临高速公路某黄土隧道,通过现场试验得出边墙系统锚杆的极限拉拔力,分析了拉拔荷载作用下边墙系统锚杆的受力特性;探讨了不同土体性质下砂浆锚杆剪应力及轴力的分布形式。研究成果为黄土隧道系统锚杆的设计和优化提供了理论依据,对设计和施工具有指导意义。

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