Performance of High Speed Railway Subgrade Strengthened by Long-Short Piles: Part II-Numerical Modelling

doi:10.1007/s10706-022-02185-8

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Performance of High Speed Railway Subgrade Strengthened by Long-Short Piles: Part II-Numerical Modelling
	Cheng, Xuansheng; Xia, Lingyu; Zha, Wanxi; Zhou, Yingchao
刊名	GEOTECHNICAL AND GEOLOGICAL ENGINEERING
	2022-06-01
关键词	CFG pile Composite subgrade CSC pile Numerical simulation Subgrade performance
ISSN号	0960-3182
DOI	10.1007/s10706-022-02185-8
英文摘要	The Yinxi Railway is located in the western region of China. As a high speed railway line connecting Yinchuan-Xi'an, which is of great significance for the construction of transportation facilities in western China. Because the Yinxi Railway passes through loess areas, cement fly-ash gravel (CFG) long piles and cement-soil compacted (CSC) short piles are used for the subgrade treatment method. In Part I of this paper, experimental results relating to the effect of the composite foundation were presented. In Part II, finite element analysis are undertaken of the influence of the change of physical parameters of the composite subgrade caused by different cement content on the subgrade performance. The results show that the performance of the composite subgrade can be fully achieved under the condition of achieving the best cost performance by selecting the appropriate ratio of cement-modified soil, which provides a certain reference for the optimization of design parameters of similar composite subgrade projects in the future.
WOS研究方向	Engineering
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000810819800001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158966]
专题	土木工程学院
作者单位	Lanzhou Univ Technol, Western Engn Res Ctr Disaster Mitigat Civil Engn, Minist Educ, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Xuansheng,Xia, Lingyu,Zha, Wanxi,et al. Performance of High Speed Railway Subgrade Strengthened by Long-Short Piles: Part II-Numerical Modelling[J]. GEOTECHNICAL AND GEOLOGICAL ENGINEERING,2022.
APA	Cheng, Xuansheng,Xia, Lingyu,Zha, Wanxi,&Zhou, Yingchao.(2022).Performance of High Speed Railway Subgrade Strengthened by Long-Short Piles: Part II-Numerical Modelling.GEOTECHNICAL AND GEOLOGICAL ENGINEERING.
MLA	Cheng, Xuansheng,et al."Performance of High Speed Railway Subgrade Strengthened by Long-Short Piles: Part II-Numerical Modelling".GEOTECHNICAL AND GEOLOGICAL ENGINEERING (2022).