Knowledge Management System of Institute of Rock and Soil Mechanics,CAS
| Long-Term Deformation of Highway Subgrade under Coupling Effect of Traffic Load and Drying-Wetting Cycles | |
| Lu, Zheng1; Fang, Ran1,2; Chen, Lihao3; She, Jianbo1,2; Xian, Shaohua1,2 | |
| 2020-02-01 | |
| 发表期刊 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| ISSN | 1532-3641 |
| 卷号 | 20期号:2页码:12 |
| 摘要 | Subgrade long-term deformation was investigated by taking the effects of both traffic load and drying-wetting cycles into consideration on the basis of numerical calculation and laboratory experiments. The total subgrade long-term settlement is composed of three parts: traffic load induced cumulative plastic deformation derived by calculated dynamic stress, deformation generated by dissipation of pore water pressure and attenuation of subgrade modulus due to drying-wetting cycles, and vertical deformation induced by weather cycles. The effects of the number of drying-wetting cycles and cycle amplitude, subgrade soil static shear strength, confining pressure, compaction degree, static constant load above the subgrade, and number of load cycles were taken into account to establish the subgrade deformation model. The layerwise summation method was also used to calculate the subgrade cumulative plastic deformation. Furthermore, a selection of computation results of the three deformation components was shown in detail and the impacts of number of load cycles, degree of compaction, subgrade depths, and the characteristics of drying-wetting cycles on the long-term deformation were discussed using the proposed model. |
| 关键词 | Long-term deformation Traffic load Drying-wetting cycles Subgrade Dynamic stress Numerical calculation |
| DOI | 10.1061/(ASCE)GM.1943-5622.0001568 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Youth Innovation Promotion Association CAS ; outstanding youth fund of Hubei Province[2017CFA056] ; Science and Technology Service Network Initiative[KFJ-STS-ZDTP-037] ; Natural Science Foundation of China[41472286] ; Natural Science Foundation of China[41472290] ; Natural Science Foundation of China[41672312] |
| WOS研究方向 | Engineering |
| WOS类目 | Engineering, Geological |
| WOS记录号 | WOS:000502794700005 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.198/handle/2S6PX9GI/23231 |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Hubei Univ Technol, Sch Civil Engn Architecture & Environm, Wuhan 430068, Hubei, Peoples R China |
| 第一作者单位 | 中科院武汉岩土力学所 |
| 推荐引用方式 GB/T 7714 | Lu, Zheng,Fang, Ran,Chen, Lihao,et al. Long-Term Deformation of Highway Subgrade under Coupling Effect of Traffic Load and Drying-Wetting Cycles[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2020,20(2):12. |
| APA | Lu, Zheng,Fang, Ran,Chen, Lihao,She, Jianbo,&Xian, Shaohua.(2020).Long-Term Deformation of Highway Subgrade under Coupling Effect of Traffic Load and Drying-Wetting Cycles.INTERNATIONAL JOURNAL OF GEOMECHANICS,20(2),12. |
| MLA | Lu, Zheng,et al."Long-Term Deformation of Highway Subgrade under Coupling Effect of Traffic Load and Drying-Wetting Cycles".INTERNATIONAL JOURNAL OF GEOMECHANICS 20.2(2020):12. |
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