Small strain stiffness of loessic soils across South East England

Article


Nobee-Fox, H. and Assadi Langroudi, A. 2019. Small strain stiffness of loessic soils across South East England. International Journal of Research in Engineering and Science. 7 (3), pp. 1-16.
AuthorsNobee-Fox, H. and Assadi Langroudi, A.
Abstract

Loess soils, commonly known as brickearth in the UK, have been modestly distributed across South, East, and South East England and are typically reworked with limited collapsibility. The High Speed Rail 2 alignment will cut in to Buckinghamshire and Hertfordshire where loess and loess-like drifts have been distributed in pockets. Serviceability of the high speed transportation infrastructure is dependent on soil small strain stiffness, ๐บโ‚˜โ‚โ‚“. Little is known about the magnitude and variation of ๐บโ‚˜โ‚โ‚“ with depth, and its relevance to mineralogical variations of loess across the regions and along depth profiles.In this paper, a series of vertical profiles for ๐บโ‚˜โ‚โ‚“ in lower and upper loessic sequences of South East England are generated using systematically collated semi-empirical equations and ground investigation data. Profiles are then contrasted with in-situ measured shear wave velocityand ๐บโ‚˜โ‚โ‚“. Discrepancy between measured and derived ๐บโ‚˜โ‚โ‚“ are discussed and general implications are drawn out. Findings from this research inform ground and geotechnical engineers with an interest in performance-based design of engineered earth systems on loess and advanced HS and HSS soil models.

JournalInternational Journal of Research in Engineering and Science
Journal citation7 (3), pp. 1-16
ISSN2320-9364
Year2019
PublisherInternational Journal of Research in Engineering and Science
Web address (URL)http://www.ijres.org/papers/Volume%207/Issue-3/Series-1/A0703010116.pdf
Publication dates
PrintSep 2019
Publication process dates
Accepted05 Sep 2019
Deposited06 Dec 2019
Copyright holderยฉ 2019 IJRES - All Rights Reserved
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