A preliminary study of the sound velocity influence factors of submarine coral sand of islands sea area in southern South China Sea
-
摘要: 通过对南海南部海域岛礁区科学考察数据资料的分析研究,得出了岛礁区海底珊瑚砂的纵波声速随孔隙度、含水量增大而减小,以及声速随中值粒径、湿密度增大而增大的统计结果,并在Biot和Wyllie的松散饱和水沉积物声速理论公式与模型基础上,解释了物理力学因素对海底珊瑚砂声速的影响机制,阐明了固相因素和液相因素的强弱变化引起声速增大或减小的理论原因,分析了各种声速经验公式在海底珊瑚砂声速估算上的精度差异,得出了有必要建立包括海底珊瑚砂在内的单一类型声速经验公式的初步结论。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.
-
罗又郎, 冯伟文, 林怀兆. 南海表层沉积类型与沉积作用若干特征[J].热带海洋, 1994, 13(1):47—54. 范时清, 罗又郎, 郭忠信 等.南海海底沉积分带性[G]//中国科学院南海海洋研究所.南海海洋科学集刊, 第8集.北京:科学出版社, 1987:55—60. 谢以萱.南砂群岛海区地形基本特征[G]//南沙群岛及邻近海区地质地球物理及岛礁研究论文集(一).北京:海洋出版社, 1991:1—11. 朱袁智, 郭丽芬.南沙群岛现代珊瑚礁地质研究[M].北京: 科学出版社, 1994: 108—114. 朱袁智, 郭丽芬, 聂宝符, 等.南海现代生物碳酸盐沉积物的垂向分带[J].热带海洋, 1990, 9(1):43—51. 卢博, 李赶先, 黄韶健.南海海底钙质土声学物理性质及其工程地质意义[J].中国科学:D辑, 1998, 28(6):518—522. 卢博, 刘强.海底沉积物声学响应中的颗粒与孔隙因[J]. 热带海洋学报, 2008, 27(3):23—29. Lu Bo, Liang Y B.Statistical correlation of physical parameters with sound velocity in marine sediments of South and East China Seas[J].Science in China:Series B, 1995, 38(5):613—618. 国家技术监督局.中华人民共和国国家标准, 海洋调查规范——海洋地质地球物理调查[S]. 北京:中国标准出版社, 1993. 国家技术监督局国家建设部.中华人民共和国国家标准, 土工试验方法标准[S]. 北京:中国计划出版社, 1999. 卢博.海底浅层沉积物声速与物理性质[J]. 科学通报, 1994, 39(5):435—437. 卢博, 李赶先, 黄韶健.用声学三参数判别海底沉积物性质[J]. 声学技术, 2007, 26(1):6—14. Zhu Z Y, Wang D, Zhou J P, et al. Acoustic wave dispersion and attenuation in marine sediment based on partially gas-saturated Biot-stoll model[J]. Chinese J Geophys(in Chinese), 2012, 55(1):180—188. 卢博, 梁元博.中国东南沿海海洋沉生积物物理参数与声速的统计相关[J]. 中国科学:B辑, 1994, 24(5): 556—560. Liang Y B, Lu B, Wong H K.Acoustic discrimination of seafloor properties[M]//Zhou Di, Liang Yuanbo, Zeng Chengkui. Oceanology of China Seas. Dordrecht, Boston and London: Kluwer Academic Publishers, 1994:547—556. Biot M A. Theory of propagation of elastic waves in a fluid-saturated porous solid: Ⅱ. Higher frequency range[J]. The Journal of the Acoustical Society of America, 1956, 28(2): 179—191. Wyllie M R J, Gregory A R, Gardner L W. Elastic wave velocities in heterogeneous and porous media[J]. Geophysics, 1956, 21(1): 41—70. 梁元博, 卢博.海底沉积物力学性质影响声速的物理机[J]. 海洋学报, 1985, 7(1):111—119. 卢博, 宋朝景, 黄韶健.南沙群岛珊瑚礁和礁灰岩弹性波分类的初步研究[J]. 南海研究与开发, 1996(3):12—15. 卢博. 海水-沉积物声速结构模式[J]. 海洋通报, 1995, 14(2):42—47. Hamilton E L, Bachman R T. Sound velocity and related properties of marine sediments[J]. The Journal of the Acoustical Society of America, 1982, 72(6): 1891—1904. Hamilton E L. Geoacoustic modeling of the sea floor[J]. The Journal of the Acoustical Society of America, 1980, 68(5): 1313—1340. Anderson R S. Statistical correlation of physical properties and sound velocity in sediments[M]//Physics of sound in marine sediments. Springer US, 1974: 481—518. 汪德昭, 尚尔昌.水声学[M].北京:科学出版社, 1981:32—46. Lu L X, Lei X, Liu X W. Prediction of porosity in the north margin of the South China Sea[J]. Diqiu Wuli Xuebao, 2013, 56(2): 601—607. 卢博, 李赶先, 孙东怀, 等. 中国东南近海海底沉积物声学物理性质及其相关关系[J]. 热带海洋学报, 2006, 5(2):12—17. Chen M P, Shen Y T, Chyan J M.Acoustic and physical properties of surface sediments in Northern Taiwan Strait[J].Acta Oceanogrphica Taiwanica, 1988, 21:92—118. 钱正明.台湾东南外海海底沉积物物理、土力学和声学特性研究[D].台北:台湾大学, 1989. Liang Yuanbo, Lu Bo. On the effect of physico-geotechnical characteristics upon sound velocities of sea floor sediments[J]. Acta Oceanologica Sinica, 1984, 3(3):313—320.
点击查看大图
计量
- 文章访问数: 1528
- HTML全文浏览量: 5
- PDF下载量: 1192
- 被引次数: 0