Effect of Pore Fluid Concentration on Shear Strength of Soft Clay
| العنوان: | Effect of Pore Fluid Concentration on Shear Strength of Soft Clay |
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| المؤلفون: | Zhen-feng Ou, Li Bo, Ying-guang Fang |
| المصدر: | Soil Mechanics and Foundation Engineering. 56:265-272 |
| بيانات النشر: | Springer Science and Business Media LLC, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Shearing (physics), Materials science, Consolidation (soil), Soil Science, Concentration effect, Ocean Engineering, Geotechnical Engineering and Engineering Geology, Overburden pressure, General Energy, Bentonite, Cohesion (geology), Direct shear test, Composite material, Water content, Water Science and Technology |
| الوصف: | Consolidated quick direct shear tests were conducted on bentonite and mixed bentonitekaolin soils with different concentrations of sodium chloride solution. The physical mechanism of the pore fluid concentration effect was explained at the micro level on the basis of micro forces among particles. The test results indicated that the shear strength of bentonite and bentonite-kaolin noticeably varied with increase in sodium chloride solution concentration, especially under high vertical stress. The friction angle increased with the pore fluid concentration, but the cohesion decreased. With increase in pore fluid concentration, the electric double-layer repulsion among soil particles decreased, thereby increasing the effective contact stress at the mineral-mineral contact and leading to increased consolidation settlement and a lower water content under vertical stress. This means a larger shearing resistance at the mineral-mineral contact point and a thinner absorbed water layer at the mineral-water-mineral contact point, leading to a greater friction angle and a lower cohesion. |
| تدمد: | 1573-9279 0038-0741 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::7f6a228800b64f2d551da627eff17904 https://doi.org/10.1007/s11204-019-09601-x |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........7f6a228800b64f2d551da627eff17904 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15739279 00380741 |
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