Projects per year
Cone penetration test (CPT) data were used to explore the vertical spatial variability in weathered layers of the Charmouth Mudstone Formation (Lias Group) at a site in Oxfordshire, England. The Charmouth Mudstone Formation is a stiff, fissured Jurassic mudstone that was formed 183-199 million years ago and weathered by glacial and periglacial conditions during the past 200,000 years. Forty-six CPT profiles were considered in the variability assessment. The vertical variability of the cone tip resistance was characterized by determining the vertical scale of fluctuation analyzed within a homogenous layer via the random field theory. The results showed that the profiles of weathered mudstone had a low scale of fluctuation, which translates to high variability among the property values. The vertical scale of fluctuation of qc for the weathered mudstone profiles varied between 0.10 m and 0.69 m, with an estimated theoretical average of 0.30 m and a coefficient of variation equal to 42%. A probability histogram of the vertical scale of fluctuation of qc showed higher probability of occurrence between 0.11m and 0.49m. The vertical scale of fluctuation qc did not show a distinction between the weathered mudstone layers and the underlying, unweathered material.
|Publication status||Published - 31 Dec 2022|
|Event||The 8th International Symposium on Geotechnical Safety and Risk (ISGSR 2022) - Newcastle, Australia, Newcastle, Australia|
Duration: 14 Dec 2022 → 16 Dec 2022
|Conference||The 8th International Symposium on Geotechnical Safety and Risk (ISGSR 2022)|
|Period||14/12/22 → 16/12/22|
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- 2 Active
1/07/20 → 30/06/25
Project: UK charity
1/07/18 → 31/12/23
Project: Research council