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Studies of Deformation Properties of Collapsible Loess Foundation under Overburden Pressure with Large Thickness by Centrifugal Model Test
Jin,Songli1; Xing,Yichuan1; Yan,Jun1; Zhao,Weiquan1; Zhou,Shu2,3; Xiao,Jianzhang1; Wu,Shuaifeng1; Sun,Liming1
Source PublicationIOP Conference Series: Earth and Environmental Science
Author of SourceIOP Publishing
meeting2019 International Conference on Oil and Gas Engineering and Geological Sciences
Conference Date2019-9-28~29
Conference PlaceDalian
Contribution Rank2
AbstractAbstract At present, laboratory test and field immersion test are the primary methods to study the collapsibility characteristics of loess foundation. However, the stress state of laboratory test usually does not conform to the actual in-site situation, while the field immersion tests are expensive and difficult to operate. Thus, a new economical and efficient method which can reflect the actual engineering is urgently needed. Centrifugal model test, which is the best physical model test, has been extensively used in various fields of geotechnical engineering. However, centrifugal model test is seldom used in the simulation of collapsibility characteristics of loess foundation. In this paper, centrifugal model tests of natural water content foundation and saturated foundation are carried out for the collapsible loess with strong self-weight collapsibility located in Yili Region in Xinjiang, China. The collapsible deformation of loess foundation based on double-line method is obtained. The results show that the amount of foundation collapsibility simulated by low head saturation method is the closest to that of field immersion test, which verifies the feasibility of using centrifugal model test to simulate collapsible deformation of Loess foundation.
Keywordloess collapse under overburden pressure centrifugal model test field immersion test
Indexed ByEI
Accession numberAccession number:20200107973544
Citation statistics
Document Type会议论文
Corresponding AuthorYan,Jun
Affiliation1.State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, Department of Geotechnical Engineering, China institute of water resources and hydro-power research, Beijing 100048, China.;
2.Key laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China;
3.University of Chinese Academy of Sciences, Beijing 100049, China
Recommended Citation
GB/T 7714
Jin,Songli,Xing,Yichuan,Yan,Jun,et al. Studies of Deformation Properties of Collapsible Loess Foundation under Overburden Pressure with Large Thickness by Centrifugal Model Test[C]//IOP Publishing,2019:12011.
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