Influencing Factors of Interfacial Behavior between Geogrid and Coal Gangue
Coal gangue is a type of solid waste that is generated in the process of coal mining and washing. This concept can be effectively used in reinforced engineering fillings. The influences of shear rates and geogrid transverse ribs were studied using a large indoor direct shear test. The test results s...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2022-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/7176075 |
| _version_ | 1827008344066359296 |
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| author | Xiangxi Fan Pengfei Gao Weichao Liu Lingxiao Meng Yingdong Xu Hong Zheng |
| author_facet | Xiangxi Fan Pengfei Gao Weichao Liu Lingxiao Meng Yingdong Xu Hong Zheng |
| author_sort | Xiangxi Fan |
| collection | DOAJ |
| description | Coal gangue is a type of solid waste that is generated in the process of coal mining and washing. This concept can be effectively used in reinforced engineering fillings. The influences of shear rates and geogrid transverse ribs were studied using a large indoor direct shear test. The test results showed that the relationship between shear stress and shear displacement of geogrid-coal gangue is nonlinear, and the shear process is accompanied by the crushing of coal gangue particles. The addition of geogrid significantly improved the shear stress and interfacial quasi-cohesion of geogrid-coal gangue, whereas the interfacial quasi-friction angle remained almost unaffected. When normal stress was greater than 25 kPa, the shear stress gradually increased as the shear rate was increased from 1 to 5 mm/s. With an increasing shear rate, the interfacial quasi-friction angle increased, whereas the interfacial quasi-cohesion decreased. The interfacial shear stress, interfacial adhesion, and interfacial friction angle decreased with the number of geogrid ribs; the contribution of the middle transverse rib to the interfacial shear strength was smaller than that of the transverse rib at the far end in the shearing direction. |
| first_indexed | 2024-04-11T06:27:32Z |
| format | Article |
| id | doaj.art-9729ed2371d04029970aa337d2f11d22 |
| institution | Directory Open Access Journal |
| issn | 1687-8094 |
| language | English |
| last_indexed | 2025-02-18T12:31:24Z |
| publishDate | 2022-01-01 |
| publisher | Hindawi Limited |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj.art-9729ed2371d04029970aa337d2f11d222024-11-02T04:15:34ZengHindawi LimitedAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/7176075Influencing Factors of Interfacial Behavior between Geogrid and Coal GangueXiangxi Fan0Pengfei Gao1Weichao Liu2Lingxiao Meng3Yingdong Xu4Hong Zheng5China University of Mining and Technology (Beijing)State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering StructuresState Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering StructuresChina State Construction Engineering Corporation LimitedChina State Construction Engineering Corporation LimitedBOSTD Geosynthetics Qingdao Ltd.Coal gangue is a type of solid waste that is generated in the process of coal mining and washing. This concept can be effectively used in reinforced engineering fillings. The influences of shear rates and geogrid transverse ribs were studied using a large indoor direct shear test. The test results showed that the relationship between shear stress and shear displacement of geogrid-coal gangue is nonlinear, and the shear process is accompanied by the crushing of coal gangue particles. The addition of geogrid significantly improved the shear stress and interfacial quasi-cohesion of geogrid-coal gangue, whereas the interfacial quasi-friction angle remained almost unaffected. When normal stress was greater than 25 kPa, the shear stress gradually increased as the shear rate was increased from 1 to 5 mm/s. With an increasing shear rate, the interfacial quasi-friction angle increased, whereas the interfacial quasi-cohesion decreased. The interfacial shear stress, interfacial adhesion, and interfacial friction angle decreased with the number of geogrid ribs; the contribution of the middle transverse rib to the interfacial shear strength was smaller than that of the transverse rib at the far end in the shearing direction.http://dx.doi.org/10.1155/2022/7176075 |
| spellingShingle | Xiangxi Fan Pengfei Gao Weichao Liu Lingxiao Meng Yingdong Xu Hong Zheng Influencing Factors of Interfacial Behavior between Geogrid and Coal Gangue Advances in Civil Engineering |
| title | Influencing Factors of Interfacial Behavior between Geogrid and Coal Gangue |
| title_full | Influencing Factors of Interfacial Behavior between Geogrid and Coal Gangue |
| title_fullStr | Influencing Factors of Interfacial Behavior between Geogrid and Coal Gangue |
| title_full_unstemmed | Influencing Factors of Interfacial Behavior between Geogrid and Coal Gangue |
| title_short | Influencing Factors of Interfacial Behavior between Geogrid and Coal Gangue |
| title_sort | influencing factors of interfacial behavior between geogrid and coal gangue |
| url | http://dx.doi.org/10.1155/2022/7176075 |
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