caa a22 4500 605454035 CHVBK 20210128100205.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s10064-014-0670-0 doi (NATIONALLICENCE)springer-10.1007/s10064-014-0670-0 Depositional environment and geotechnical properties of Shanghai clay: a comparison with Ariake and Bangkok clays [Elektronische Daten] [Chao-jun Wu, Guan-lin Ye, Lu-lu Zhang, Daniel Bishop, Jian-hua Wang] Shanghai soft clay was deposited in the Yangtze River Delta in the Late Pleistocene and Holocene eras. The general engineering properties of this clay have been studied in the last few decades. However, limited research on its depositional history and impact on geotechnical properties is available. In this paper, the depositional history of Shanghai clay was reproduced based on sea level changes and other geological information. The unique depositional environment was compared with two other Asian clays, Ariake clay in Japan and Bangkok clay in Thailand. The physical, mineralogical and mechanical properties of different strata were investigated by a series of laboratory tests. It was found that silt-sized grain particles dominated the clay materials and illite is the major clay mineral, while clay-sized grains and smectite are predominant in Ariake and Bangkok clays. The liquid limit, plastic limit and activity are lower than the Ariake and Bangkok clays. Oedometer tests and undrained triaxial tests indicated a less sensitive structure. Stronger hydraulic conditions (faster stream velocity) and the origin of material in the middle and lower reaches of the Yangtze River account for the large amount of silt-sized particles and illite. A less saline depositional environment is the main reason for the weaker structure in Shanghai clay than the two other Asian clays. Springer-Verlag Berlin Heidelberg, 2014 Shanghai clay nationallicence Depositional environment nationallicence Geotechnical properties nationallicence Laboratory tests nationallicence Soil structure nationallicence Wu Chao-jun Department of Civil Engineering and State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, 200240, Shanghai, China aut Ye Guan-lin Department of Civil Engineering and State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, 200240, Shanghai, China aut Zhang Lu-lu Department of Civil Engineering and State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, 200240, Shanghai, China aut Bishop Daniel ARC Center for Geotechnical Science and Engineering, The University of Newcastle, Newcastle, Australia aut Wang Jian-hua Department of Civil Engineering and State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, 200240, Shanghai, China aut Bulletin of Engineering Geology and the Environment Springer Berlin Heidelberg 74/3(2015-08-01), 717-732 1435-9529 74:3<717 2015 74 10064 https://doi.org/10.1007/s10064-014-0670-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10064-014-0670-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wu Chao-jun Department of Civil Engineering and State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, 200240, Shanghai, China aut NATIONALLICENCE 700 1- Ye Guan-lin Department of Civil Engineering and State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, 200240, Shanghai, China aut NATIONALLICENCE 700 1- Zhang Lu-lu Department of Civil Engineering and State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, 200240, Shanghai, China aut NATIONALLICENCE 700 1- Bishop Daniel ARC Center for Geotechnical Science and Engineering, The University of Newcastle, Newcastle, Australia aut NATIONALLICENCE 700 1- Wang Jian-hua Department of Civil Engineering and State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, 200240, Shanghai, China aut NATIONALLICENCE 773 0- Bulletin of Engineering Geology and the Environment Springer Berlin Heidelberg 74/3(2015-08-01), 717-732 1435-9529 74:3<717 2015 74 10064