Abstract
Strength measurement of surficial sediments was crucial for deep-sea developments. Compared with piezocone test and vane shear test, the full-flow penetrometers (T-bar and ball) could better estimate the undrained shear strength of extremely soft deep-sea surficial sediments. In this study, high-quality samples were recovered from three interesting sites in the west of South China Sea using box corer, and a newly developed miniature full-flow penetrometer was introduced and utilized for measuring the penetration resistances of sediments. Combined with vane shear strength data and empirical equations, the intact and remoulded undrained shear strength, strength factors and soil sensitivity of sediments was obtained and discussed. The results also proved that the performance of the new miniature full-flow penetrometer was reliable and effective.
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The authors appreciate the financial support of the National Natural Science Foundation of China, Grant Nos. 51409036, 41572252 and 51639002.
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Wang, Y., Ren, Y., Yang, Q. (2018). Undrained Shear Strength Measurement for Deep-Sea Surficial Sediments in the West of South China Sea Using Miniature Full-Flow Penetrometer. In: Zhou, A., Tao, J., Gu, X., Hu, L. (eds) Proceedings of GeoShanghai 2018 International Conference: Fundamentals of Soil Behaviours. GSIC 2018. Springer, Singapore. https://doi.org/10.1007/978-981-13-0125-4_41
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DOI: https://doi.org/10.1007/978-981-13-0125-4_41
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