Journal of Mountain Science

, Volume 16, Issue 7, pp 1661–1674 | Cite as

Compression characteristics of saturated re-compacted glacial tills in Tianmo Gully of Tibet, China

  • Lei-lei Chen
  • Gordon G. D. ZhouEmail author
  • Qing-yi Mu
  • Kahlil Fredrick E. Cui
  • Dong-ri Song


Glacial tills are highly compressible soils composed of loosely cemented sandy silt particles. Their role, for instance, as initial filler materials in geo-technical projects along temperate glacier regions warrant a systematic evaluation of their compressive characteristics. As such, we carry out a series of one-dimensional compression tests on re-compacted glacial till samples obtained from Tianmo Gully, Tibet, with the aims of evaluating their compressive behavior under controlled initial stress conditions. The yield stress was determined from the void ratio versus consolidation pressure (e-log σv) planes. Its compression and swelling behaviors were observed during the primary and secondary compressions of the consolidation tests. From the compression curves, a correlation can be found between the consolidation stress and the void index. In addition, we find that the compression curves of glacial tills collapse into a single curve when normalized by the compression index. The experimental results in this study provide a basic understanding of the compression characteristics of the glacial tills in Tibet, China.


Glacial till Compression characteristics One-dimensional consolidation tests Consolidation stress Compression curve 



Uniformity coefficient


Coefficient of curvature, Compression index


Coefficient of secondary compression


Effective diameter


Continuous diameter


Average diameter


Constrained diameter


Void ratio


After consolidation void ratio


Void ratio on intrinsic compression under vertical consolidation stress 100 kPa


Void ratio on intrinsic compression under vertical consolidation stress 1000 kPa


Specific gravity


Plastic index


Void index


Degree of saturation


Water content


Liquid limit


Plastic limit


Dry density


Compression pressure


Effective compression pressure


Yield stress


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The authors acknowledge the financial support from the Key Research Program of Frontier Sciences, Chinese Academy of Sciences (Grant no. QYZDB-SSW-DQC010) and the Youth Innovation Promotion Association, Chinese Academy of Sciences.


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Copyright information

© Science Press, Institute of Mountain Hazards and Environment, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Key Laboratory of Mountain Hazards and Earth Surface Process, Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengduChina
  2. 2.University of Chinese Academy of SciencesBeijingChina
  3. 3.Department of Civil EngineeringXi’an Jiaotong UniversityXi’anChina

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