Dynamic Shear Degradation of Geosynthetic–Soil Interface in Waste Landfill Sites
Geosynthetics and soil particles inevitably come into contact, resulting in a geosynthetic–soil interface. The discontinuity of the materials at the interface causes an intricate shear response, especially under dynamic loads. In the present study, the effects of chemical aggressors of the leachate...
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| Format: | Article |
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MDPI AG
2017-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/7/12/1225 |
| _version_ | 1818778681488703488 |
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| author | Changwon Kwak Junboum Park Dongin Jang Innjoon Park |
| author_facet | Changwon Kwak Junboum Park Dongin Jang Innjoon Park |
| author_sort | Changwon Kwak |
| collection | DOAJ |
| description | Geosynthetics and soil particles inevitably come into contact, resulting in a geosynthetic–soil interface. The discontinuity of the materials at the interface causes an intricate shear response, especially under dynamic loads. In the present study, the effects of chemical aggressors of the leachate from a waste landfill site on the cyclic shear behaviors of a geosynthetic–soil interface were investigated. The Multi-Purpose Interface Apparatus (M-PIA) that can simulate cyclic simple shear conditions was utilized, and 72 sets of cyclic simple shear tests were conducted. The Disturbed State Concept (DSC) was employed to quantitatively estimate the shear stress degradation. As a result, new disturbance functions and parameters that represent the characteristics of the dynamic shear degradation at the interface were evaluated. Additionally, a numerical back-prediction was performed to verify the accuracy and applicability of the DSC parameters. Numerical interpolation procedures were suggested and enabled to reproduce the degradation successfully. Consequently, a general methodology was established to estimate the cyclic shear stress degradation of the geosynthetic–soil interface in consideration of chemical effects. |
| first_indexed | 2024-12-18T11:48:35Z |
| format | Article |
| id | doaj.art-d62de53a4b06414da2897ff4e1492040 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-18T11:48:35Z |
| publishDate | 2017-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-d62de53a4b06414da2897ff4e14920402022-12-21T21:09:13ZengMDPI AGApplied Sciences2076-34172017-11-01712122510.3390/app7121225app7121225Dynamic Shear Degradation of Geosynthetic–Soil Interface in Waste Landfill SitesChangwon Kwak0Junboum Park1Dongin Jang2Innjoon Park3Civil and Architectural Engineering Group, Korea District Heating Engineering Co. Ltd., 55 Bundang-ro, Bundang-gu, Sungnam-si, Gyeonggi-do 13591, KoreaDepartment of Civil and Environmental Engineering, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul 08826, KoreaDepartment of Civil Engineering, Hanseo University, 46 Hanseo 1-ro, Haemi-myun, Seosan-si, Chungcheognam-do 31962, KoreaDepartment of Civil Engineering, Hanseo University, 46 Hanseo 1-ro, Haemi-myun, Seosan-si, Chungcheognam-do 31962, KoreaGeosynthetics and soil particles inevitably come into contact, resulting in a geosynthetic–soil interface. The discontinuity of the materials at the interface causes an intricate shear response, especially under dynamic loads. In the present study, the effects of chemical aggressors of the leachate from a waste landfill site on the cyclic shear behaviors of a geosynthetic–soil interface were investigated. The Multi-Purpose Interface Apparatus (M-PIA) that can simulate cyclic simple shear conditions was utilized, and 72 sets of cyclic simple shear tests were conducted. The Disturbed State Concept (DSC) was employed to quantitatively estimate the shear stress degradation. As a result, new disturbance functions and parameters that represent the characteristics of the dynamic shear degradation at the interface were evaluated. Additionally, a numerical back-prediction was performed to verify the accuracy and applicability of the DSC parameters. Numerical interpolation procedures were suggested and enabled to reproduce the degradation successfully. Consequently, a general methodology was established to estimate the cyclic shear stress degradation of the geosynthetic–soil interface in consideration of chemical effects.https://www.mdpi.com/2076-3417/7/12/1225geosyntheticsgeosynthetic–soil interfacecyclic simple shearDisturbance State Conceptdynamic shear degradationnumerical back-predictionchemical effects |
| spellingShingle | Changwon Kwak Junboum Park Dongin Jang Innjoon Park Dynamic Shear Degradation of Geosynthetic–Soil Interface in Waste Landfill Sites Applied Sciences geosynthetics geosynthetic–soil interface cyclic simple shear Disturbance State Concept dynamic shear degradation numerical back-prediction chemical effects |
| title | Dynamic Shear Degradation of Geosynthetic–Soil Interface in Waste Landfill Sites |
| title_full | Dynamic Shear Degradation of Geosynthetic–Soil Interface in Waste Landfill Sites |
| title_fullStr | Dynamic Shear Degradation of Geosynthetic–Soil Interface in Waste Landfill Sites |
| title_full_unstemmed | Dynamic Shear Degradation of Geosynthetic–Soil Interface in Waste Landfill Sites |
| title_short | Dynamic Shear Degradation of Geosynthetic–Soil Interface in Waste Landfill Sites |
| title_sort | dynamic shear degradation of geosynthetic soil interface in waste landfill sites |
| topic | geosynthetics geosynthetic–soil interface cyclic simple shear Disturbance State Concept dynamic shear degradation numerical back-prediction chemical effects |
| url | https://www.mdpi.com/2076-3417/7/12/1225 |
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