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Seasonal Variations in Properties of Expansive Soils Along a Railway Corridor in Western India

  • Sanjay GuptaEmail author
  • Ravi Sundaram
  • Sorabh Gupta
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 29)

Abstract

The properties of expansive soils at shallow depth are influenced by moisture variations due to seepage of water into the soils during rains. The paper presents a case study in western India along a railway freight corridor. Testing on samples collected from boreholes drilled in the pre-monsoon and post-monsoon periods indicates substantial variations in moisture content, undrained shear strength, and swell pressure to about 3–3.5 m depth. Below this depth, these properties show insignificant change. This confirms that the active zone, the geotechnically unstable zone in expansive soils that undergoes swelling shrinkage due to moisture variations extends to about 3.5 m depth.

Keywords

Expansive soils Seasonal variations Active zone: moisture variations Undrained shear strength Swell pressure 

Notes

Acknowledgements

The authors are thankful to M/s. Nippon Koei Ltd. for giving Cengrs Geotechnica Pvt. Ltd. the opportunity to perform this investigation.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Cengrs Geotechnica Pvt. Ltd.NoidaIndia

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