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BOTDR光纤在钻孔灌注桩中的应用

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摘要 结合某工程大直径、后注浆超长桩现场静载荷试验,采用BOTDR分布式光纤测量技术,跟踪测量静载荷试验中桩身应变分布,确定不同荷载下桩身轴力及桩侧摩阻力、桩端阻力的分布情况。分布式应变采样点最小间距为5cm。测试结果表明,分布式光纤传感器具有较高的测量精度,分布式光纤测量技术相对于传统钢筋应力计方法可以得到更精细的试验数据,为设计提供更丰富的信息。
作者 吴秀珍
出处 《建筑技术开发》 2010年第7期25-28,共4页 Building Technology Development
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