caa a22 4500 606223444 CHVBK 20210128101138.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s11204-015-9319-7 doi (NATIONALLICENCE)springer-10.1007/s11204-015-9319-7 Experimental Study on Suffusion of Gravelly Soil [Elektronische Daten] [Liang Chen, Jingchuan Zhao, Hongyu Zhang, Wen Lei] Although internal erosion causes serious hazards to embankments and dams, studies on the emission of fine soil particles and the development of non-uniform penetration of the soil foundation after suffusion do not go far enough. Given that suffusion development is random and complex, this study employed self-designed equipment to conduct tests under specific conditions. Twelve samples with three different pore size distributions were used to make a comparative analysis on aspects such as piezometric head, flow rate, coefficient of permeability, trend of fine particles, and accumulated sand emissions. Furthermore, the coefficient of permeability, void ratio, movement trend of fine particles in samples, and changes in content of the remaining fine particles were studied. Combined with theoretical calculations, correlations among the movement trend of fine particles in the samples, content of remaining fine particles and uneven changes in the permeability coefficient were shown. Using the relationship between permeability and porosity, we derived a theoretical formula was deduced from the changing amount of accumulated sand emissions over time under fixed upstream total head. Springer Science+Business Media New York, 2015 Chen Liang Hohai University, Nanjing, China aut Zhao Jingchuan Guangzhou Metro Group Co., Ltd., Headquarters of Construction Undertaking, Guangzhou, China aut Zhang Hongyu Jiangsu Electric Power Design Institute, Nanjing, China aut Lei Wen China Railway Shanghai Design Institute Group Co.,Ltd, Shanghai, China aut Soil Mechanics and Foundation Engineering Springer US; http://www.springer-ny.com 52/3(2015-07-01), 135-143 0038-0741 52:3<135 2015 52 11204 https://doi.org/10.1007/s11204-015-9319-7 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/s11204-015-9319-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chen Liang Hohai University, Nanjing, China aut NATIONALLICENCE 700 1- Zhao Jingchuan Guangzhou Metro Group Co., Ltd., Headquarters of Construction Undertaking, Guangzhou, China aut NATIONALLICENCE 700 1- Zhang Hongyu Jiangsu Electric Power Design Institute, Nanjing, China aut NATIONALLICENCE 700 1- Lei Wen China Railway Shanghai Design Institute Group Co.,Ltd, Shanghai, China aut NATIONALLICENCE 773 0- Soil Mechanics and Foundation Engineering Springer US; http://www.springer-ny.com 52/3(2015-07-01), 135-143 0038-0741 52:3<135 2015 52 11204