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物探与化探  2018, Vol. 42 Issue (2): 398-404    DOI: 10.11720/wtyht.2018.2.26
  工程勘察 本期目录 | 过刊浏览 | 高级检索 |
利用瑞利波广义S变换探测近地表裂缝
邵广周1, 董晋2, 董兆堂3
1.长安大学 地质工程与测绘学院,陕西 西安 710054;
2.铁道第三勘察设计院集团有限公司,天津 300251;
3.广州市房地产测绘院,广东 广州 510030
The application of generalized S-transform of Rayleigh waves to detecting near-surface fissures
SHAO Guang-Zhou1, DONG Jin2, DONG Zhao-Tang3
1. School of Geological Engineering and Geomatics,Chang'an University,Xi'an 710054,China;
2.The Third Railway Survey and Design Institute Group Corporation,Tianjin 300251,China;
3.Real Estate Surveying and Mapping Institute,Guangzhou 510030,China
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摘要 地裂缝灾害是地质灾害中地面变形灾害的一种,不仅造成各种建筑的直接破坏,也引起了一系列的环境问题。因此在工程建设中有效地探测地下裂缝是一项重要任务。笔者对瑞利波探测地裂缝方法进行了试验研究,采用广义S变换,在时间—频率域来提取某一道上来自裂缝散射瑞利波的到时,从而计算出裂缝的位置。通过两组半空间裂缝模型和一组实际资料验证了广义S变换探测近地表裂缝的可行性和探测效果。理论模型和野外实际资料探测结果表明,利用瑞利波广义S变换探测近地表裂缝是切实可行且有效的。
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Abstract:Ground fissures constitute a kind of geological disasters which not only cause direct damage to various buildings but also result in a series of environmental problems.It is therefore an important task to detect the ground fissures effectively in many engineering projects.In this paper,an experimental research on using Rayleigh waves to detect ground fissures was conducted.The generalized S-transform was adopted to extract the arrival time of the diffracted Rayleigh waves from the ground fissure at a certain receiver in time-frequency domain.And then the arrival times were used to calculate the locations of the ground fissures.In this paper,two half-space fissure models and a real world data analysis were used to demonstrate the feasibility and effectiveness of detecting ground fissures with the generalized S-transform.The theoretical models and the real world example show that it is feasible and effective to use the generalized S-transform to detect ground fissures.
收稿日期: 2017-05-22      出版日期: 2018-04-03
:  P631.4  
基金资助:国家自然科学基金(41374145,41004043)、陕西省自然科学基金(2016JM4003)和长安大学中央高校基金(310826162006)联合资助
作者简介: 邵广周(1977-),男,副教授,主要从事地震勘探与地球物理信号处理方面的研究工作。Email:shao_gz@chd.edu.cn
引用本文:   
邵广周, 董晋, 董兆堂. 利用瑞利波广义S变换探测近地表裂缝[J]. 物探与化探, 2018, 42(2): 398-404.
SHAO Guang-Zhou, DONG Jin, DONG Zhao-Tang. The application of generalized S-transform of Rayleigh waves to detecting near-surface fissures. Geophysical and Geochemical Exploration, 2018, 42(2): 398-404.
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https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2018.2.26      或      https://www.wutanyuhuatan.com/CN/Y2018/V42/I2/398
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