摘要
研究了分布式光纤传感技术在钻孔灌注桩静荷载试验中的应用,介绍了光纤测试的整个试验过程,并根据试验数据分析计算出桩身轴力与桩侧摩阻力随深度分布,桩端阻力、桩侧摩阻力随桩顶荷载增加的变化规律,并和传统方法焊接钢筋计监测结果进行相互对比论证分析,使得桩基测试结果更加准确可靠。
We study the application of distributed optical fiber sensing technology in static load test of bored pile. The whole test process of optical fiber test is introduced,and the variation of pile shaft force and friction resistance with depth distribution,pile end resistance,pile side friction resistance and pile top load are calculated according to the test data. The monitoring results of the traditional method of welding reinforcement are compared with each other,and the result of pile foundation test is more accurate and reliable.
作者
张堂杰
万晓峰
张磊
ZHANG Tangjie;WAN Xiaofeng;ZHANG Lei(Jiangsu Underground Space Exploration Technology Engineering Lab,Nanjing 211112,China;JSTI Group Co.Ltd,Nanjing 211112,China)
出处
《灾害学》
CSCD
北大核心
2018年第A01期169-172,共4页
Journal of Catastrophology
关键词
试桩测试
钻孔灌注桩
分布式光纤
侧摩阻力
pile test
bored pile
distributed optical fiber
side friction resistance
