| CT技术在铁路路基病害勘探中的应用 |
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| 引用本文： | 李志辉,张立,刘争平.CT技术在铁路路基病害勘探中的应用[J].物探化探计算技术,2006,28(2):137-141. |
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| 作者姓名： | 李志辉 张立 刘争平 |
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| 作者单位： | 西南交通大学,土木工程学院,成都,610031 |
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| 摘 要： | 在铁路主要干线大提速的背景下,路基病害的探测、定位及整治已成为一项重要而紧迫的课题。采用CT速度成像技术,重建路基下介质结构图像,可以准确提供岩溶、洞穴、软弱土层等路基病害存在部位的定位依据。这里简要介绍了声波CT的基本原理、反演重构技术和声波勘探的CT工作流程,并通过工程实例给出路基病害CT探测的实施过程和分析结论。工程实践表明,CT技术在铁路路基病害勘探中具有良好的应用效果。
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| 关 键 词： | 层析成像(CT) 路基病害 声波勘探 |
| 文章编号： | 1001-1749(2006)02-0137-05 |
| 收稿时间： | 04 6 2005 12:00AM |
| 修稿时间： | 2005年4月6日 |
THE CT TECHNIQUE APPLICATION TO THE SURVEY OF RAIL-BED DISASTERS |
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| LI Zhi-hui,ZHANG Li,LIU Zheng-ping.THE CT TECHNIQUE APPLICATION TO THE SURVEY OF RAIL-BED DISASTERS[J].Computing Techniques For Geophysical and Geochemical Exploration,2006,28(2):137-141. |
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| Authors: | LI Zhi-hui ZHANG Li LIU Zheng-ping |
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| Abstract: | The survey and disposal of rail-bed disasters become very important and urgent problems for high speed train.Reconstructing the image of subterranean substance by sonic tomography can precisely locate the Karst erosion,grotto, oozy earth,and other rail-bed disasters.In this paper,principles,methods and working flow of sonic tomography image inversion and reconstruction are introduced briefly.With an example of engineering case,it's application process,correlative analysis and conclusion are discussed in detail and results verify that the CT technique is feasible and can be applied widely to the survey of rail-bed disasters. |
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| Keywords: | computerized tomography(CT) roadbed disasters sonic exploring technique |
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