A preliminary study of the sound velocity influence factors of submarine coral sand of islands sea area in southern South China Sea

Li Ganxian; Long Jianjun

doi:10.3969/j.issn.0253-4193.2014.05.017

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Li Ganxian, Long Jianjun. A preliminary study of the sound velocity influence factors of submarine coral sand of islands sea area in southern South China Sea[J]. Haiyang Xuebao, 2014, 36(5): 152-160. doi: 10.3969/j.issn.0253-4193.2014.05.017

Citation:

Li Ganxian, Long Jianjun. A preliminary study of the sound velocity influence factors of submarine coral sand of islands sea area in southern South China Sea[J]. Haiyang Xuebao, 2014, 36(5): 152-160. doi: 10.3969/j.issn.0253-4193.2014.05.017

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A preliminary study of the sound velocity influence factors of submarine coral sand of islands sea area in southern South China Sea

doi: 10.3969/j.issn.0253-4193.2014.05.017

Li Ganxian¹,
Long Jianjun²

1.
CAS Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
2.
School of Electromechanical Engiheering, Guangdong University of Technology, Guangzhou 510060, China

Received Date: 2013-04-11
Rev Recd Date: 2013-11-23

Abstract

Abstract

Through statistical analyzing the scientific investigate acoustic-physical data of the submarine coral sand in southern South China Sea,the paper shows that the analysis result of the compression wave velocity decrease with the porosity or water content increasing,and the compression wave velocity increase with the grain medium diameter or wet density increasing. On the basis of Biot's sound velocity formula and Wyllie's acoustic model about loose and saturation porosity water sediment,the paper explain the influence mechanism of physical-mechanical factors for the compression wave velocity of submarine coral sand,expound the cause of the sound velocity increase or decrease with the factor change of solid phase and liquid phase,analyze the precision difference of estimating submarine coral sand sound velocity of the several empirical formulas,and obtain the preliminary conclusions of needing to establishes the sound velocity empirical formulas fit for submarine coral sand and other single type seafloor sediment.
- southern South China Sea,
- coral reef islands area,
- submarine coral sand,
- sound velocity,
- influence factors

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References(29)

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