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Long-term desalination leaching effect on compression/swelling behaviour of Lianyungang marine soft clays
https://orcid.org/0000-0002-8223-8711
Abstract In this study, Lianyungang (LYG) soft marine clays were long-term leached by the distilled water and synthetic NaCl solutions, respectively, and then oedometer tests with cycle loading/unloading were conducted to investigate the desalination leaching effect on its compression/swelling behaviour. Test results reveal that the stress-induced creep generates a void ratio change (Δec), whilst the long-term desalination leaching accompanying colloidal erosion further results in the aging of clays’ structure, and hence, additional void ratio change (Δel) is identified. After long-term desalination leaching process, the compression/swelling behaviour of LYG clays in the elastic loading and unloading stage is changed slightly. However, in the elastoplastic loading stage, the desalination leaching leads to the significant compression at low stress level (less than 200 kPa), followed by the slight difference at high stress level (exceeding 200 kPa). Finally, the compression/swelling behaviour induced by clay’s aging for the long-term desalination leaching process was summarized.
Long-term desalination leaching effect on compression/swelling behaviour of Lianyungang marine soft clays
https://orcid.org/0000-0002-8223-8711
Abstract In this study, Lianyungang (LYG) soft marine clays were long-term leached by the distilled water and synthetic NaCl solutions, respectively, and then oedometer tests with cycle loading/unloading were conducted to investigate the desalination leaching effect on its compression/swelling behaviour. Test results reveal that the stress-induced creep generates a void ratio change (Δec), whilst the long-term desalination leaching accompanying colloidal erosion further results in the aging of clays’ structure, and hence, additional void ratio change (Δel) is identified. After long-term desalination leaching process, the compression/swelling behaviour of LYG clays in the elastic loading and unloading stage is changed slightly. However, in the elastoplastic loading stage, the desalination leaching leads to the significant compression at low stress level (less than 200 kPa), followed by the slight difference at high stress level (exceeding 200 kPa). Finally, the compression/swelling behaviour induced by clay’s aging for the long-term desalination leaching process was summarized.
Long-term desalination leaching effect on compression/swelling behaviour of Lianyungang marine soft clays
https://orcid.org/0000-0002-8223-8711
Abstract In this study, Lianyungang (LYG) soft marine clays were long-term leached by the distilled water and synthetic NaCl solutions, respectively, and then oedometer tests with cycle loading/unloading were conducted to investigate the desalination leaching effect on its compression/swelling behaviour. Test results reveal that the stress-induced creep generates a void ratio change (Δec), whilst the long-term desalination leaching accompanying colloidal erosion further results in the aging of clays’ structure, and hence, additional void ratio change (Δel) is identified. After long-term desalination leaching process, the compression/swelling behaviour of LYG clays in the elastic loading and unloading stage is changed slightly. However, in the elastoplastic loading stage, the desalination leaching leads to the significant compression at low stress level (less than 200 kPa), followed by the slight difference at high stress level (exceeding 200 kPa). Finally, the compression/swelling behaviour induced by clay’s aging for the long-term desalination leaching process was summarized.
Long-term desalination leaching effect on compression/swelling behaviour of Lianyungang marine soft clays
Wu, Zilong (author) / Deng, Yongfeng (author) / Chen, Yonggui (author) / Gao, Yufeng (author) / Zha, Fusheng (author)
2021
Article (Journal)
Electronic Resource
English
BKL:
56.00$jBauwesen: Allgemeines
/
38.58
Geomechanik
/
38.58$jGeomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
56.00
Bauwesen: Allgemeines
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
ELIB18
Depositional and geotechnical properties of marine clays in Lianyungang, China
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Depositional and geotechnical properties of marine clays in Lianyungang, China
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