Experimental study of dynamic resilient modulus of subgrade soils under coupling of freeze-thaw cycles and dynamic load
文献类型：期刊论文
| 作者 | Zhao Yang2,3; Lu Zheng2,4; Yao Hai-lin2; Gu Fan5,6; Duan Ya-hui1 |
| 刊名 | JOURNAL OF CENTRAL SOUTH UNIVERSITY
 |
| 出版日期 | 2020-07-01 |
| 卷号 | 27期号:7页码:2043-2053 |
| 关键词 | dynamic resilient modulus freeze-thaw cycles dynamic load dynamic triaxial test prediction model |
| ISSN号 | 2095-2899 |
| DOI | 10.1007/s11771-020-4429-4 |
| 英文摘要 | Although the dynamic properties of subgrade soils in seasonally frozen areas have already been studied, few researchers have considered the influence of shallow groundwater during the freeze-thaw (F-T) cycles. So a multifunctional F-T cycle system was developed to imitate the groundwater recharge in the subgrade during the freezing process and a large number of dynamic triaxial experiments were conducted after the F-T cycles. Some significant factors including the F-T cycle number, compaction degree, confining pressure, cyclic deviator stress, loading frequency, and water content were investigated for the resilient modulus of soils. The experimental results indicated that the dynamic resilient modulus of the subgrade was negatively correlated with the cyclic deviator stress, F-T cycle number, and initial water content, whereas the degree of compaction, confining pressure, and loading frequency could enhance the resilient modulus. Furthermore, a modified model considering the F-T cycle number and stress state was established to predict the dynamic resilient modulus. The calculated results of this modified model were very close to the experimental results. Consequently, calculation of the resilient modulus for F-T cycles considering the dynamic load was appropriate. This study provides reference for research focusing on F-T cycles with groundwater supply and the dynamic resilient moduli of subgrade soils in seasonally frozen areas. |
| 资助项目 | National Natural Science Foundation of China[41672312] ; National Natural Science Foundation of China[41972294] ; Outstanding Youth Foundation of Hubei Province, China[2017CFA056] ; Changsha University of Science & Technology via Open Fund of National Engineering Laboratory of Highway Maintenance Technology, China[KFJ170104] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000557377300012 |
| 出版者 | JOURNAL OF CENTRAL SOUTH UNIV |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/24619]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Lu Zheng; Duan Ya-hui |
| 作者单位 | 1.Wuchang Univ Technol, Sch Urban Construct, Wuhan 430023, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Hubei Key Lab Geoenvironm Engn, Wuhan 430071, Peoples R China 5.Changsha Univ Sci & Technol, Natl Engn Lab Highway Maintenance Technol, Changsha 410114, Peoples R China 6.Auburn Univ, Natl Ctr Asphalt Technol, Auburn, AL 36830 USA |
| 推荐引用方式 GB/T 7714 | Zhao Yang,Lu Zheng,Yao Hai-lin,et al. Experimental study of dynamic resilient modulus of subgrade soils under coupling of freeze-thaw cycles and dynamic load[J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY,2020,27(7):2043-2053. |
| APA | Zhao Yang,Lu Zheng,Yao Hai-lin,Gu Fan,&Duan Ya-hui.(2020).Experimental study of dynamic resilient modulus of subgrade soils under coupling of freeze-thaw cycles and dynamic load.JOURNAL OF CENTRAL SOUTH UNIVERSITY,27(7),2043-2053. |
| MLA | Zhao Yang,et al."Experimental study of dynamic resilient modulus of subgrade soils under coupling of freeze-thaw cycles and dynamic load".JOURNAL OF CENTRAL SOUTH UNIVERSITY 27.7(2020):2043-2053. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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