| CT技术在超长桩后压浆效果检测中的应用研究 |
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| 引用本文： | 黄生根,张 健,龚维明.CT技术在超长桩后压浆效果检测中的应用研究[J].岩土力学,2006,27(Z2):890-894. |
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| 作者姓名： | 黄生根 张 健 龚维明 |
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| 作者单位： | 1.中国地质大学（武汉）工程学院，武汉 430074；2.东南大学 土木工程学院，南京 210096 |
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| 摘 要： | 超声波CT检测的主要物理量是超声波速度，可以区分加固体的强度和密度；电磁波CT检测的物理量是吸收系数，可以区分注浆体的分布。采用CT检测技术，对苏通大桥主墩群桩的后压浆效果进行了评价。根据取芯结果和CT检测成果的对比分析，综合应用超声波CT和电磁波CT技术对超长桩压浆效果进行检测是可行的。
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| 关 键 词： | 后压浆 CT 超声波速度 吸收系数 |
| 收稿时间： | 2006-11-25 |
Study on a application of CT to grouting effect test of overlength piles |
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| HUANG Sheng-gen,ZHANG Jian,GONG Wei-ming.Study on a application of CT to grouting effect test of overlength piles[J].Rock and Soil Mechanics,2006,27(Z2):890-894. |
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| Authors: | HUANG Sheng-gen ZHANG Jian GONG Wei-ming |
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| Institution: | 1. Faculty of Engineering, China University of Geosciences, Wuhan 430074,China; 2. College of Civil Engineering, Southeast University, Nanjing 210096,China |
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| Abstract: | The wave velocity is the main physical parameter of ultrasonic wave CT test, it can distinguish the change of strength and density in reinforced section. The absorption coefficient is the main physical parameter of electromagnetic CT; it can determine the distribution of the reinforced section. CT has been applied to evaluate the grouting effect of group piles in Su-Tong Bridge. According to the results of coring and CT test, it is practicable to apply ultrasonic wave CT and electromagnetic CT synthetically to test the grouting effect of overlength piles. |
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| Keywords: | post-grouting CT ultrasonic wave velocity absorption coefficient |
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