Permanent displacement assessment of slope protected by soil nailing retaining wall under earthquake

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	Permanent displacement assessment of slope protected by soil nailing retaining wall under earthquake
	Dong, Jian-Hua; Zhu, Yan-Peng
	2011-10-01
发表期刊	Gongcheng Lixue/Engineering Mechanics
ISSN	10004750
卷号	28 期号:10 页码:101-110
摘要	Based on the analysis model of pseudo-static stability, a permanent displacement calculation model of slope protected by soil nailing under earthquake is established. The total permanent displacement consisted of two parts of the earthquake displacement and the post-earthquake displacement is proposed. The solution of average acceleration adopts the elastic dynamic calculating model to improve the rigidity assumptions of the Newmark method. Using genetic algorithms to search yield acceleration can achieve the permanent displacement of slope under earthquake. Employing the principle of work and energy, the calculating model of a post-earthquake permanent displacement is established and solved. According to flexible soil nailing characteristic, the "folding steps" slip deformation mechanism is proposed to calculate the sliding friction works of soil nailing after the earthquake. The dynamic design philosophy and flow chart of the soil nailing structure are given based on the control of the permanent displacement of the slope. The analytical results show that the ratio of a post-earthquake displacement to a seismic displacement is great, and the post-earthquake displacement can not be ignored.
关键词	Genetic algorithms Numerical analysis Seismic design Slope stability Soils Supports Dynamic calculating model Earthquake displacement Permanent displacements Seismic stability Sliding friction works Slope Soil nailing structures Soil-nailing
收录类别	EI
语种	中文
出版者	Tsinghua University
EI入藏号	20114514504229
EI主题词	Earthquakes
EI分类号	406.2 Roads and Streets ; 408 Structural Design ; 483.1 Soils and Soil Mechanics ; 484 Seismology ; 921.6 Numerical Methods
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/150161
专题	土木工程学院
作者单位	School of Civil Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China
第一作者单位	土木工程学院
第一作者的第一单位	土木工程学院
推荐引用方式 GB/T 7714	Dong, Jian-Hua,Zhu, Yan-Peng. Permanent displacement assessment of slope protected by soil nailing retaining wall under earthquake[J]. Gongcheng Lixue/Engineering Mechanics,2011,28(10):101-110.
APA	Dong, Jian-Hua,&Zhu, Yan-Peng.(2011).Permanent displacement assessment of slope protected by soil nailing retaining wall under earthquake.Gongcheng Lixue/Engineering Mechanics,28(10),101-110.
MLA	Dong, Jian-Hua,et al."Permanent displacement assessment of slope protected by soil nailing retaining wall under earthquake".Gongcheng Lixue/Engineering Mechanics 28.10(2011):101-110.