Undrained Dynamic Behavior of Reinforced Subgrade under Long-Term Cyclic Loading
To study the dynamic behavior of reinforced subgrade, a series of undrained cyclic triaxial tests of reinforced soil (the specimen a height of 50 cm and a diameter of 20 cm) were performed in this paper. The specimens were tested by varying confining pressure, vibration frequency, dynamic stress amp...
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| Format: | Article |
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Wiley
2018-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/5685789 |
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| author | Min Geng Debin Wang Peiyong Li |
| author_facet | Min Geng Debin Wang Peiyong Li |
| author_sort | Min Geng |
| collection | DOAJ |
| description | To study the dynamic behavior of reinforced subgrade, a series of undrained cyclic triaxial tests of reinforced soil (the specimen a height of 50 cm and a diameter of 20 cm) were performed in this paper. The specimens were tested by varying confining pressure, vibration frequency, dynamic stress amplitudes, and reinforced layers. Orthogonal experiment is a better way to optimize the process of experiment. Impact on dynamic behavior of the reinforced soil specimens is discussed through orthogonal design of experiments in four factors and three levels. This study has demonstrated that the order of dynamic elastic modulus of reinforced soil is influenced by dynamic stress amplitude, frequency, reinforced layer, and confining pressure within changing in factor level. The dynamic stress amplitude has great influence on the dynamic elastic modulus of reinforced soil. The bearing capacity and dynamic elastic modulus of reinforced subgrade decrease slightly with the increase of dynamic strain. Frequency has an influence on the dynamic elastic modulus. It is shown that the cumulative strain of reinforced soil is related to the vibration frequency. The test results also exemplify the reinforced subgrade restrict lateral displacement of subgrade and reduce settlement of subgrade under long-term cyclic loading. |
| format | Article |
| id | doaj-art-c4d53035bfea4c0da27c1665df8373ec |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-c4d53035bfea4c0da27c1665df8373ec2025-02-03T01:31:33ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/56857895685789Undrained Dynamic Behavior of Reinforced Subgrade under Long-Term Cyclic LoadingMin Geng0Debin Wang1Peiyong Li2Institute of Geotechnical Engineering, Dalian University of Technology, Dalian 116024, ChinaSchool of Civil Engineering, Dalian JiaoTong University, Dalian 116028, ChinaSchool of Civil Engineering, Dalian JiaoTong University, Dalian 116028, ChinaTo study the dynamic behavior of reinforced subgrade, a series of undrained cyclic triaxial tests of reinforced soil (the specimen a height of 50 cm and a diameter of 20 cm) were performed in this paper. The specimens were tested by varying confining pressure, vibration frequency, dynamic stress amplitudes, and reinforced layers. Orthogonal experiment is a better way to optimize the process of experiment. Impact on dynamic behavior of the reinforced soil specimens is discussed through orthogonal design of experiments in four factors and three levels. This study has demonstrated that the order of dynamic elastic modulus of reinforced soil is influenced by dynamic stress amplitude, frequency, reinforced layer, and confining pressure within changing in factor level. The dynamic stress amplitude has great influence on the dynamic elastic modulus of reinforced soil. The bearing capacity and dynamic elastic modulus of reinforced subgrade decrease slightly with the increase of dynamic strain. Frequency has an influence on the dynamic elastic modulus. It is shown that the cumulative strain of reinforced soil is related to the vibration frequency. The test results also exemplify the reinforced subgrade restrict lateral displacement of subgrade and reduce settlement of subgrade under long-term cyclic loading.http://dx.doi.org/10.1155/2018/5685789 |
| spellingShingle | Min Geng Debin Wang Peiyong Li Undrained Dynamic Behavior of Reinforced Subgrade under Long-Term Cyclic Loading Advances in Materials Science and Engineering |
| title | Undrained Dynamic Behavior of Reinforced Subgrade under Long-Term Cyclic Loading |
| title_full | Undrained Dynamic Behavior of Reinforced Subgrade under Long-Term Cyclic Loading |
| title_fullStr | Undrained Dynamic Behavior of Reinforced Subgrade under Long-Term Cyclic Loading |
| title_full_unstemmed | Undrained Dynamic Behavior of Reinforced Subgrade under Long-Term Cyclic Loading |
| title_short | Undrained Dynamic Behavior of Reinforced Subgrade under Long-Term Cyclic Loading |
| title_sort | undrained dynamic behavior of reinforced subgrade under long term cyclic loading |
| url | http://dx.doi.org/10.1155/2018/5685789 |
| work_keys_str_mv | AT mingeng undraineddynamicbehaviorofreinforcedsubgradeunderlongtermcyclicloading AT debinwang undraineddynamicbehaviorofreinforcedsubgradeunderlongtermcyclicloading AT peiyongli undraineddynamicbehaviorofreinforcedsubgradeunderlongtermcyclicloading |