| 灌注桩钢筋笼磁异常的定量化研究(英文) |
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| 引用本文： | 孙斌,董平,王冲,蒲晓轩,吴永敬.灌注桩钢筋笼磁异常的定量化研究(英文)[J].应用地球物理,2009,6(3):275-286. |
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| 作者姓名： | 孙斌 董平 王冲 蒲晓轩 吴永敬 |
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| 作者单位： | 南京大学地球科学与工程学院,南京,210093 |
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| 基金项目： | supported by Transportation Research Project of Jiangsu Province (05Y015),China |
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| 摘 要： | 本文利用数值计算方法首次定量化研究了钢筋笼的磁异常场,总结了钢筋笼的磁异常特征,重点讨论了测孔方位、桩孔距、多节钢筋笼等影响因素,并为磁法检测钢筋笼提供了定量化的参考值.通过模型桩试验,验证了理论计算的正确性,并利用理论计算所得的规律合理的对实测曲线进行了解释.结果显示:数值计算和现场试验基本吻合,通过钢筋笼曲线特征可以较好的判断钢筋笼长度和配筋率变化.本文的研究完善了基于磁法的钢筋笼检测方法,并可以做进一步推广.该方法也对其他构筑物内部的配筋检测有一定的指导意义.
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| 关 键 词： | 应用地球物理 灌注桩 钢筋笼 磁法 定量化 |
Quantitative analysis of magnetic anomaly of reinforcements in bored in-situ concrete piles? |
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| Bin Sun,Ping Dong,Chong Wang,Xiaoxuan Pu,Yongjing Wu.Quantitative analysis of magnetic anomaly of reinforcements in bored in-situ concrete piles?[J].Applied Geophysics,2009,6(3):275-286. |
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| Authors: | Bin Sun Ping Dong Chong Wang Xiaoxuan Pu Yongjing Wu |
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| Institution: | Sun Bin1,Dong Ping1,Wang Chong1,Pu Xiaoxuan1,, Wu Yongjing11.Department of Earth Sciences,Nanjing University,Nanjing 210093,China. |
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| Abstract: | We quantitatively study magnetic anomalies of reinforcement rods in bored in-situ concrete piles for the first time and summarized their magnetic anomaly character.Key factors such as measuring borehole orientation,borehole-reinforcement distance,and multiple-section reinforcement rods are discussed which contributes valid and quantitative reference for using the magnetic method to detect reinforcement rods.Through tests with model piles,we confirm the accuracy of theoretical computations and then utilize t... |
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| Keywords: | Applied geophysics concrete piles reinforcement rods magnetic method |
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