Analysis of freezing and thawing of slope improved by soil nailing structure in seasonal frozen soil region

doi:10.16285/j.rsm.2017.02.034

IR > 土木工程学院

	Analysis of freezing and thawing of slope improved by soil nailing structure in seasonal frozen soil region
	Zhang, Yuan 1,2; Dong, Jian-Hua1,2 ; Dong, Xu-Guang 1,2; Wang, Yong-Sheng1,2
	2017-02-10
发表期刊	Yantu Lixue/Rock and Soil Mechanics
ISSN	10007598
卷号	38 期号:2 页码:574-582 and 592
摘要	Freezing-thawing cycle in seasonal frozen soil region frequently damages the slope protected by soil nailing structure and threatens the slope retaining structure. In this paper, a finite element model was established using the thermal-fluid-structural coupling module in the nonlinear finite element software ADINA as case study of a project in Lanzhou. A constitutive model was developed to solve freeze-heave and thaw-subside. The program was verified by measured results. The structural characteristic response of soil nailing structure under freezing-thawing cycles was analyzed by the software secondary development. The results show that the increment of axial force of soil nail in each layer reaches a maximum at the nail head and decreases gradually along the axial direction under freezing-thawing cycles. The relative increment of axial force increases with the slope height. The horizontal displacement and ground settlement increase due to melted frozen soil. These conclusions provide significant references for design and construction of slope retaining structures in seasonal frozen soil region. © 2017, Science Press. All right reserved.
关键词	Axial flow Computer simulation Freezing Frozen soils Supports Design and construction Freezing and thawing Freezing thawing cycles Horizontal displacements Non-linear finite elements Slope Soil nailing structures Structural characteristics
DOI	10.16285/j.rsm.2017.02.034
收录类别	EI
语种	中文
出版者	Academia Sinica
EI入藏号	20172203711544
EI主题词	Thawing
来源库	Compendex
分类代码	483.1 Soils and Soil Mechanics - 631.1 Fluid Flow, General - 723.5 Computer Applications
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/114392
专题	土木工程学院
作者单位	1.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China; 2.Western Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China
第一作者单位	甘肃省土木工程防灾减灾重点实验室; 土木工程学院
第一作者的第一单位	甘肃省土木工程防灾减灾重点实验室
推荐引用方式 GB/T 7714	Zhang, Yuan,Dong, Jian-Hua,Dong, Xu-Guang,et al. Analysis of freezing and thawing of slope improved by soil nailing structure in seasonal frozen soil region[J]. Yantu Lixue/Rock and Soil Mechanics,2017,38(2):574-582 and 592.
APA	Zhang, Yuan,Dong, Jian-Hua,Dong, Xu-Guang,&Wang, Yong-Sheng.(2017).Analysis of freezing and thawing of slope improved by soil nailing structure in seasonal frozen soil region.Yantu Lixue/Rock and Soil Mechanics,38(2),574-582 and 592.
MLA	Zhang, Yuan,et al."Analysis of freezing and thawing of slope improved by soil nailing structure in seasonal frozen soil region".Yantu Lixue/Rock and Soil Mechanics 38.2(2017):574-582 and 592.