Measurement of soil acoustic properties based on technique of guided waves - 文章详情页

作者：

Wu, Bin (Wu, Bin.) (学者：吴斌) | Meng, Tao (Meng, Tao.) | He, Cunfu (He, Cunfu.) (学者：何存富) | Jiao, Jingpin (Jiao, Jingpin.) (学者：焦敬品)

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摘要：

The　acoustic　properties　of　soil　greatly　affect　the　propagation　of　guided　waves　in　buried　pipelines.　In　order　to　ascertain　the　acoustic　properties　of　soil,　guided　are　detection　experiments　using　a　typical　wave　guide　(a　steel　rod)　are　con　ducted　in　air　and　in　soil.　Based　on　the　established　attenuation　characteristics　of　elastic　waves,　the　attenuation　curve　for　the　L　(0,1)　mode　is　obtained.　By　comparing　the　experimental　attenuation　curve　with　theoretical　curves,　the　acoustic　properties　of　soil　(velocities　of　longitude　waves　and　transverse　waves)　are　determined.　The　results　are　used　to　analyze　guided　waves　propagating　in　a　buried　pipeline.　The　soil　has　a　great　influence　on　the　propagation　of　guided　waves,　and　two　new　axisymmetric　modes-α1　and　α1　occur　at　low　frequencies.

关键词：

Acoustic properties Measurements Ultrasonic waves Attenuation Pipelines Acoustic wave propagation Elastic waves Soils

作者机构：

[ 1 ] [Wu, Bin]College of Mechanical Engineering and Applied Electronic Technology, Beijing University of Technology, Beijing 100022, China
[ 2 ] [Meng, Tao]College of Mechanical Engineering and Applied Electronic Technology, Beijing University of Technology, Beijing 100022, China
[ 3 ] [He, Cunfu]College of Mechanical Engineering and Applied Electronic Technology, Beijing University of Technology, Beijing 100022, China
[ 4 ] [Jiao, Jingpin]College of Mechanical Engineering and Applied Electronic Technology, Beijing University of Technology, Beijing 100022, China

通讯作者信息：

电子邮件地址：

wb@bjut.edu.cn

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