Oedometer Study Regarding the Consolidation Behavior of Nanjing Soft Clay


Liu Y. Ma R. Zhu Y. Yi X. Satyanaga A. Dai G. Gao P. Zhai Q.
August 2024Multidisciplinary Digital Publishing Institute (MDPI)

Applied Sciences (Switzerland)
2024#14Issue 16

Ground settlement resulting from consolidation may lead to tilted buildings, cracks in the pavement, damage to underground utilities, etc. Therefore, it is crucial to understand the consolidation behaviors (including primary consolidation and secondary compression) of the soil of the subgrade. There is a large amount of soft clay deposited in Nanjing, located in the Yangtze River Basin. The consolidation behavior of Nanjing soft clay can significantly affect foundation design and the cost of construction. In this study, experimental measurements of the consolidation behavior of Nanjing soft clay were conducted, and parameters (such as pre-consolidation pressure, secondary consolidation index and secondary consolidation ratio) related to consolidation were assessed. The concept of simulated over-consolidation ratio (OCRs) was proposed, and the close relationship between primary consolidation and secondary compression settlement and the OCRs of Nanjing clay was investigated.

pre-consolidation pressure , secondary compression index , secondary compression ratio , simulated over-consolidation ratio , soft clay

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Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing, 210096, China
Jilin Provincial Transport Scientific Research Institute, Changchun, 130012, China
Department of Civil and Environmental Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
Jiangsu Jianyan Construction Engineering Quality and Safety Appraisal Co., Ltd., Nanjing, 210024, China

Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education
Jilin Provincial Transport Scientific Research Institute
Department of Civil and Environmental Engineering
Jiangsu Jianyan Construction Engineering Quality and Safety Appraisal Co.

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