Numerical modeling of parallel seismic method for detecting existing piles in layered soil

doi:10.1016/j.sandf.2017.11.009

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地灾害与地表过程重点实验室

	Numerical modeling of parallel seismic method for detecting existing piles in layered soil
	Zhang, Jing-Yi 1; Lei, Xiaoqin2
刊名	SOILS AND FOUNDATIONS
	2018-02-01
卷号	58 期号:1 页码:134-145
关键词	Existing piles Parallel seismic method Integrity Flexural wave Nondestructive test
ISSN号	0038-0806
DOI	10.1016/j.sandf.2017.11.009
英文摘要	For piles connected to superstructures, whose pile tops are inaccessible, a lateral horizontal impact on the side of the piles through the generation of a flexural wave of the pile shaft is a more feasible approach. This paper presents a parallel seismic ( PS) method based on the flexural wave of the pile shaft that combines down-hole tests for the length and an integrity evaluation of existing piles in layered soil. It is suggested that two PS tests be conducted by horizontal striking on the side surface of the pile along and perpendicular to the pile-to-borehole direction, respectively. The first arrivals of the transmitted P-wave and S-wave at the pile-soil interface obtained in these two PS tests and the results of down-hole tests are combined to analyze the pile length and to distinguish the embedded defects for the pile integrity evaluation. A simplified theoretical model for PS tests in layered soil is established, and a correction formula is proposed to correct the initial estimated pile length accordingly. A three-dimensional finite element model is then established to verify the effectiveness and reliability of the proposed PS method in layered soil and the correction formula. (C) 2017 Production and hosting by Elsevier B.V. on behalf of The Japanese Geotechnical Society.
语种	英语
出版者	JAPANESE GEOTECHNICAL SOC
WOS记录号	WOS:000429409000010
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/22907]
专题	成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
通讯作者	Zhang, Jing-Yi
作者单位	1.Sichuan Inst Bldg Res, Chengdu 610081, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jing-Yi,Lei, Xiaoqin. Numerical modeling of parallel seismic method for detecting existing piles in layered soil[J]. SOILS AND FOUNDATIONS,2018,58(1):134-145.
APA	Zhang, Jing-Yi,&Lei, Xiaoqin.(2018).Numerical modeling of parallel seismic method for detecting existing piles in layered soil.SOILS AND FOUNDATIONS,58(1),134-145.
MLA	Zhang, Jing-Yi,et al."Numerical modeling of parallel seismic method for detecting existing piles in layered soil".SOILS AND FOUNDATIONS 58.1(2018):134-145.