混凝土损伤识别中的叠加偏移成像技术
The Application of Stack Migration Imaging Technology on Concrete Structural Damage Identification
摘 要
为了提高对混凝土裂缝检测的能力，引进在工程物探中应用广泛的叠加偏移成像技术。阐述了原理，借鉴地震勘探数据处理方式，根据弹性波在混凝土中的传播特性以及混凝土损伤检测的特点，制定出一套适合识别预制混凝土梁损伤的叠加偏移成像数据处理流程，从而得到对缺陷的成像。为无损检测技术人员定性、定量分析混凝土缺陷提供了实践和理论参考。
损伤识别
动校正
水平叠加
Concrete
Damage identification
Normal correction
Horizontal stacking
Abstract
In order to improve the detection ability of concrete, stack migration imaging technology widely used in geophysics has been recommended. Data processing flow of stack migration imaging of pre-damage concrete beam was presented on the basis of the principle and the seismic prospecting data handling styles, propertied of elastic wave propagation in concrete material and inherent characteristic of concrete damage detecting. Accordingly, the imaging of the damage dimension and location could be obtained. It could provide practice and theory reference of quantitative and quantificational analysis of concrete damage for nondestructive testing technology persons.
中图分类号 TU317+.5 TG115.28
所属栏目 科研成果与学术交流
基金项目 国家自然科学基金资助项目(No.10672068)；江苏省“六大人才高峰”资助项目(1721190050)；江苏大学研究生校科研项目资助(1293000426)
收稿日期 2007/11/15
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备注骆 英(1960-)，男，博士，教授，主要从事新型无损检测技术及传感器机理研究方面的工作。
引用该论文: LUO Ying,WANG Zi-Ping,GU Jian-Zu. The Application of Stack Migration Imaging Technology on Concrete Structural Damage Identification[J]. Nondestructive Testing, 2008, 30(12): 881～884
骆 英,王自平,顾建祖. 混凝土损伤识别中的叠加偏移成像技术[J]. 无损检测, 2008, 30(12): 881～884
被引情况:
【1】谷昆仑,骆英,李忠芳, "结构损伤检测中OPCM换能器的特性",无损检测 31, 681-684(2009)
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参考文献
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【2】Popovices J S, Song W J, Ghandehari M, et al. Application of surface wave transmission measurements for crack depth determination in concrete[J]. ACI Materials Journal,2000,97(2):127-135.
【3】Young-Fo Chang. Chung-Yue Wang. Chao-Hui Hsieh. Feaskibility of detecting embedded cracks in concrete structures by reflection seismology[J]. NDT & E International,2000,34(1):39-48.
【4】刘琼华，骆 英，朱步银，等.基于OPCM声发射传感器的新的SHM技术[J].江苏大学学报：自然科学版,2006,27(2):172-175.
【5】Wang Lei, Yuan F G. Damage identification in a composite plate using prestack reverse——time migration technique[J]. Structural Health Monitoring,2005,4(3):195-211.
【6】Wang Lei, Yuan F G. Active damage localization technique based on energy propagation of Lamb waves[J]. Smart Structures and Systems, 2007,3(2):201-217.
【7】姚 姚.地震波场与地震勘探[M].北京：地质出版社，2006.
【8】董泽斌，吴良元.地震资料数据处理[M].北京：石油工业出版社，1992.
【9】渥·伊尔马滋，著.地震数据处理[M].黄绪德，袁明德，译.北京：石油工业出版社,1999.
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