{"title":"A comprehensive assessment of the compression index of marine seabed soils","authors":"Muhannad Ismeik","doi":"10.1007/s11001-024-09555-2","DOIUrl":null,"url":null,"abstract":"<p>The compression index (C<sub>c</sub>) is a crucial parameter for evaluating the consolidation settlement of marine infrastructure, but measuring it experimentally is challenging. This study presents C<sub>c</sub> prediction models for marine seabed soils using linear, nonlinear, and artificial neural network modeling techniques. Large experimental oedometer test results for marine clays, collected from the available literature, are used to develop valuable models based on easily measurable soil properties, applicable to a wide range of marine soils. The initial void ratio and plasticity index have a greater impact on C<sub>c</sub> estimation compared to the liquid limit and natural water content. The predictive capacity of the models is validated with independent oedometer test data, confirming the reliability of the results. The proposed models aid geotechnical designers in determining the required C<sub>c</sub> for initial settlement assessments for marine infrastructure, resulting in cost and time savings. The predicted C<sub>c</sub> values can be further adjusted by conducting traditional consolidation tests on selected seabed samples collected from the coastal site.</p>","PeriodicalId":49882,"journal":{"name":"Marine Geophysical Research","volume":"6 1","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Marine Geophysical Research","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1007/s11001-024-09555-2","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
引用次数: 0
Abstract
The compression index (Cc) is a crucial parameter for evaluating the consolidation settlement of marine infrastructure, but measuring it experimentally is challenging. This study presents Cc prediction models for marine seabed soils using linear, nonlinear, and artificial neural network modeling techniques. Large experimental oedometer test results for marine clays, collected from the available literature, are used to develop valuable models based on easily measurable soil properties, applicable to a wide range of marine soils. The initial void ratio and plasticity index have a greater impact on Cc estimation compared to the liquid limit and natural water content. The predictive capacity of the models is validated with independent oedometer test data, confirming the reliability of the results. The proposed models aid geotechnical designers in determining the required Cc for initial settlement assessments for marine infrastructure, resulting in cost and time savings. The predicted Cc values can be further adjusted by conducting traditional consolidation tests on selected seabed samples collected from the coastal site.
压缩指数(Cc)是评估海洋基础设施固结沉降的一个重要参数,但实验测量具有挑战性。本研究采用线性、非线性和人工神经网络建模技术,提出了海洋海底土壤的 Cc 预测模型。利用从现有文献中收集的海洋粘土的大型气压计试验结果,根据易于测量的土壤特性开发出适用于各种海洋土壤的有价值的模型。与液限和天然含水量相比,初始空隙率和塑性指数对 Cc 估算的影响更大。这些模型的预测能力通过独立的土力计测试数据进行了验证,确认了结果的可靠性。建议的模型有助于岩土工程设计师确定海洋基础设施初步沉降评估所需的 Cc,从而节省成本和时间。通过对从沿海地区采集的选定海床样本进行传统的固结试验,可进一步调整预测的 Cc 值。
期刊介绍:
Well-established international journal presenting marine geophysical experiments on the geology of continental margins, deep ocean basins and the global mid-ocean ridge system. The journal publishes the state-of-the-art in marine geophysical research including innovative geophysical data analysis, new deep sea floor imaging techniques and tools for measuring rock and sediment properties.
Marine Geophysical Research reaches a large and growing community of readers worldwide. Rooted on early international interests in researching the global mid-ocean ridge system, its focus has expanded to include studies of continental margin tectonics, sediment deposition processes and resulting geohazards as well as their structure and stratigraphic record. The editors of MGR predict a rising rate of advances and development in this sphere in coming years, reflecting the diversity and complexity of marine geological processes.