气候变化领域集成服务门户(CCPortal): Dynamic Behavior of Geosynthetic-Reinforced Expansive Soil under Freeze-Thaw Cycles

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DOI	10.1155/2021/5526854
	Dynamic Behavior of Geosynthetic-Reinforced Expansive Soil under Freeze-Thaw Cycles
	Zhongnian, Yang; Liu, Xuesen; Zhang, Liang; Niu, Fujun; Ling, Xianzhang; Li, Guoyu; Shi, Wei
通讯作者	Zhang, L (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China.
发表日期	2021
ISSN	1687-8086
EISSN	1687-8094
卷号	2021
英文摘要	Expansive soil has a significant impact on the stability of many key construction projects in cold regions. To study the physical and mechanical properties of expanded soil under the condition of freeze-thaw cycle, cryogenic cyclic triaxial tests were conducted on the dynamic and the displacement characteristics of geosynthetic-reinforced expansive soil subjected to the freeze-thaw cycles. Compared with the unreinforced expansive soil samples, the effects of freeze-thaw cycles on the soil dynamics were discussed. The dynamic shear modulus (G(d)) and damping ratio (lambda) of the expansive soil samples are improved by reinforcement. Reinforced soil can inhibit the axial compression of the sample and restrain the frost heave deformation of the sample during the freezing process. Meanwhile, it can delay the structural damage effect caused by frost heave and reduce the rate of change of the G(d) and the lambda with the freeze-thaw cycle. At the same time, reinforced soil can inhibit the axial expansion, reduce the rate of reduction of the G(d), stabilize it with a higher rate, and reduce the influence of the freeze-thaw cycles on the lambda of the expansive soil sample. Finally, the change of mechanical properties of expansive soil under the condition of reinforcement is obtained. The main conclusions of this paper can be used to reinforce the roadbed and foundation engineering of frozen soil in a cold region and provide support for the fiber reinforcement method of expansive soil.
语种	英语
WOS研究方向	Construction & Building Technology ; Engineering
WOS类目	Construction & Building Technology ; Engineering, Civil
WOS记录号	WOS:000669007900001
来源期刊	ADVANCES IN CIVIL ENGINEERING
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253651
作者单位	[Zhongnian, Yang; Liu, Xuesen; Ling, Xianzhang; Shi, Wei] Qingdao Univ Technol, Qingdao 266033, Shandong, Peoples R China; [Zhang, Liang; Niu, Fujun; Li, Guoyu] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China; [Ling, Xianzhang] Harbin Inst Technol, Harbin 150001, Heilongjiang, Peoples R China
推荐引用方式 GB/T 7714	Zhongnian, Yang,Liu, Xuesen,Zhang, Liang,et al. Dynamic Behavior of Geosynthetic-Reinforced Expansive Soil under Freeze-Thaw Cycles[J]. 中国科学院西北生态环境资源研究院,2021,2021.
APA	Zhongnian, Yang.,Liu, Xuesen.,Zhang, Liang.,Niu, Fujun.,Ling, Xianzhang.,...&Shi, Wei.(2021).Dynamic Behavior of Geosynthetic-Reinforced Expansive Soil under Freeze-Thaw Cycles.ADVANCES IN CIVIL ENGINEERING,2021.
MLA	Zhongnian, Yang,et al."Dynamic Behavior of Geosynthetic-Reinforced Expansive Soil under Freeze-Thaw Cycles".ADVANCES IN CIVIL ENGINEERING 2021(2021).