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引用次数: 0
摘要
海洋工业面临的挑战是,必须在碳酸盐土壤上建造基础结构,而碳酸盐土壤位于地球上热带和热带间区的广大地区。为了更好地了解这些土壤的行为变得越来越必要,本文提出了预测碳酸盐岩砂动力行为的方程,其中使用波多黎各卡波罗霍碳酸盐岩砂进行的共振柱试验数据,通过多元线性回归得到了两个表达式(G/Gmax vs . G和D vs . G) (Cataño & Pando, 2010)。所提方程与实验数据吻合较好。G/Gmax相对于G的表达式误差小于10%,而D相对于γ的表达式倾向于低估松散条件下的值(Dr = 24%),呈现50kPa的有效围应力。此外,将提出的方程与Javdanian和Jafarian(2018)对碳酸盐砂的G/Gmax与G和D与G的预测进行了比较,也得出了相当一致的结果。
Proposition of correlations for the dynamic parameters of carbonate sands
The offshore industry has been challenged with the necessity to build structures with foundations on carbonate soils, found in extensive areas of the tropical and intertropical zones of the planet. As a better understanding of the behavior of these soils becomes more and more indispensable, this paper presents equations to predict the dynamic behavior of carbonate sands, in which two expressions (G/Gmax versus g and D versus g) were obtained via multiple linear regression using data from resonant column tests carried out on carbonate sands from Cabo Rojo, Puerto Rico (Cataño & Pando, 2010). The proposed equations agreed well with experimental data. The error for the expressions G/Gmax versus g was less than 10%, while the expressions D versus γ trended to underestimate the values for the loose condition (Dr = 24%), presenting an effective confining stress of 50kPa. Furthermore, the proposed equations were compared with predictions exhibited by Javdanian & Jafarian (2018) of G/Gmax versus g and D versus g for carbonate sands, also yielding fairly concordant results.
期刊介绍:
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.