A geotechnical and geophysical characterization of the influence of seasonal variation on railway embankments
A geotechnical and geophysical characterization of the influence of seasonal variation on railway embankments
Seasonal variation causes the railway embankments in Ireland and the United Kingdom (UK) to experience significant changes in their pore water pressure throughout the year. Most of these embankments were constructed more than a 100 years ago with methods that did not comply with standard compaction methods used in modern embankments. As these embankments form a large portion of the railway infrastructure in the UK, their stability presents a geohazard. With the imminent effects of climate change on unstable seasonal variation in the weather patterns, understanding the behaviour of these embankments becomes even more critical. To understand the influence of such seasonal variation or hydraulic hysteresis, laboratory testing was conducted on clay-based embankment material sourced from an active railway embankment. Firstly, results of field measurements from sensors at the railway embankment are presented. Furthermore, results from shear wave velocity measurements of the material together with suction and moisture measurements are also presented.
Q. Khan; Shane Donohue; A. Trafford; Ben Dashwood; J. E. Chambers
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
B - Geohazards
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