GPR utilization in artificial freezing engineering (SCI)

CORC > 寒区旱区环境与工程研究所 > 中科院寒区旱区环境与工程研究所（未分类） > 期刊论文

	GPR utilization in artificial freezing engineering (SCI)
	Song L. ; Yang W. H. ; Huang J. H. ; Li H. P. ; Zhang X. J.
刊名	Journal of Geophysics and Engineering
	2013
卷号	10 期号:3
ISSN号	ISBN/1742-2132
英文摘要	To utilize ground penetrating radar (GPR) in artificial freezing engineering (AFE), the electromagnetic parameters (EMP) of frozen soil were measured using a vector network analyser, which showed that the dielectric permittivity and electric conductivity change abruptly at the boundary between the frozen and the non-frozen soil. Then similarity criteria of GPR model experiments were deduced, and GPR laboratory model experiments and field explorations of AFE were carried out. It was found that for AFE, the GPR travel time and profile characters of anomalies in model experiments were similar to those in field explorations, while the amplitude of GPR signals in laboratory model experiments were much stronger than those in field explorations. Numerical simulations were also implemented to analyse the relationship between model experiments and field explorations, which further told us why we could easily find the targets by GPR in the laboratory but not in field explorations. The outputs showed that GPR could be used to detect the thickness of the frozen wall and to find unfrozen soil defects, even though the amplitude of the reflective signals were much weaker than those of laboratory experiments. The research findings have an important theoretical value for AFE and permafrost region engineering, and the deduced GPR similarity criteria could be widely used in other GPR model experiments.
收录类别	(SCI)
公开日期	2014-12-19
内容类型	期刊论文
源URL	[http://ir.casnw.net/handle/362004/23241]
专题	寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文
推荐引用方式 GB/T 7714	Song L.,Yang W. H.,Huang J. H.,et al. GPR utilization in artificial freezing engineering (SCI)[J]. Journal of Geophysics and Engineering,2013,10(3).
APA	Song L.,Yang W. H.,Huang J. H.,Li H. P.,&Zhang X. J..(2013).GPR utilization in artificial freezing engineering (SCI).Journal of Geophysics and Engineering,10(3).
MLA	Song L.,et al."GPR utilization in artificial freezing engineering (SCI)".Journal of Geophysics and Engineering 10.3(2013).