Analysis of the influences of physical parameters on sediment sound speed
Analysis of the influences of physical parameters on sediment sound speed
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DOI：
10.1080/1064119x.2016.1198944
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发表时间：
2016-06
影响因子：
2.2
通讯作者：
Z. Hou;Changsheng Guo;Jingqiang Wang;Wenjing Chen;Tiegang Li;Yanxin Zhang;Yongtao Fu
中科院分区：
文献类型：
--
作者：
Z. Hou;Changsheng Guo;Jingqiang Wang;Wenjing Chen;Tiegang Li;Yanxin Zhang;Yongtao Fu
摘要以南海南部不同地质构造单元岩心样品为基础，建立了沉积声速与物性参数的双参数方程。根据双参数方程，分析了孔隙率、平均粒径、湿容重和粘土含量等物理参数对泥沙声速的影响。为了分析双参数方程中各参数的灵敏度，引入了误差范数法。采用误差范数法分析了影响相对顺序最大的物理参数。结果表明，孔隙度对声速影响较大，对声速影响最大的物理参数为孔隙度>湿容重>粘土含量>平均粒径。
ABSTRACT Based on the core samples collected in different geological tectonic units in the southern South China Sea, the double parameter equations between sediment sound speed and physical parameters were developed. According to the double parameter equations, the influences of physical parameters (porosity, mean grain size, wet bulk density, and clay content) on sediment sound speed were analyzed. To analyze the sensitivity of each parameter in the double parameter equations, the error norm method was introduced. The most influencing physical parameters with relative order were analyzed using the error norm method. These results show that porosity has a major influence on the sound speed, and the most influential physical parameters on sound speed are as follows: porosity > wet bulk density > clay content > mean grain size.