The model test about silty clay’s deformation as water pressure decreasing

DOI

10.2991/mebe-15.2015.243How to use a DOI?

Keywords

Model test; Over-consolidated soil; Water pressure decreasing; Deformation

Abstract

The main compression layer of Xi’an is over-consolidated. Based on the property, the physical model is designed as a steel cylinder which is 2.5m diameter,3m high. The soil layers are inter-bedded with silty clay and medium-fine sand. The consolidation pressure and overburden pressure is 295KPa. The process of soil deformation was simulated as the water falling by decreasing the water pressure in the medium-fine sand layer during the silty clay in expansion. Data monitoring test reveal that the silty clay layer continued to expand for 220 hours. After expansion, the silty clay has a larger compression. Based on the study of this test, we could predict that larger land subsidence of Xi’an will occurrence again as the confined water level decline by over pumping of ground - waters.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Gangchen Sun
AU  - Jianbing Peng
AU  - Xiaohan Sun
PY  - 2015/04
DA  - 2015/04
TI  - The model test about silty clay’s deformation as water pressure decreasing
BT  - Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering
PB  - Atlantis Press
SP  - 1086
EP  - 1089
SN  - 2352-5401
UR  - https://doi.org/10.2991/mebe-15.2015.243
DO  - 10.2991/mebe-15.2015.243
ID  - Sun2015/04
ER  -