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9 September 2019 Origin Distribution and Geotechnical Characters of Marine Soft Clay in Guangxi Coastal Highway
Decai Mi, Junhui Luo, Xianlin Liu, Longwang Xu, Deqiang Chen
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Abstract

Mi, D.-C.; Luo, J.-H.; Liu, X.-L.; Xu, L.-W., and Chen, D.-Q., 2019. Origin distribution and geotechnical characters of marine soft clay in Guangxi coastal highway. In: Gong, D.; Zhu, H., and Liu, R. (eds.), Selected Topics in Coastal Research: Engineering, Industry, Economy, and Sustainable Development. Journal of Coastal Research, Special Issue No. 94, pp. 269–274. Coconut Creek (Florida), ISSN 0749-0208.

To further study the origin and distribution characters of marine soft clay, the geotechnical characters are explored. First, basic definition of marine soft clay is interpreted by specifications of China and foreign countries. Marine soft clay derives from the north, south, and the central China as divided based on the sedimentary environment and distributive scope. There is also a regional division for marine soft clay in Guangxi, situated in the south China. Subsequently, the mechanical parameters of marine clay in the coastal area and in Guangxi are also analyzed, and the characters of marine soft clay in Guangxi are revealed based on the indoor soil test in the local. These survey results show that: (1) Guangxi's marine soft clay can be developed in three areas: Fangcheng port, Beihai and Qinzhou; (2) In China's coastal areas, the properties of marine soft clay from the north to the south get worse, forming the law of “strength in the north and weakness in the south”. The northernmost Qinzhou in Guangxi develops the worst marine soft clay, while in Guangxi Fangcheng port, the marine soft clay is the best; (3) In Qinzhou district, Guangxi, the structural yield stress of the marine soft clay is about 81 kPa, and the critical creep stress is 60∼70 kPa, demonstrating structural and rheological properties of marine soft clay in Guangxi.

©Coastal Education and Research Foundation, Inc. 2019
Decai Mi, Junhui Luo, Xianlin Liu, Longwang Xu, and Deqiang Chen "Origin Distribution and Geotechnical Characters of Marine Soft Clay in Guangxi Coastal Highway," Journal of Coastal Research 94(sp1), 269-274, (9 September 2019). https://doi.org/10.2112/SI94-056.1
Received: 2 November 2018; Accepted: 3 April 2019; Published: 9 September 2019
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KEYWORDS
creep property
Guangxi coastal highway
marine soft clay
origin distribution
structural property
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