TY - GEN
T1 - Characterisation of near-surface sediments using a blend of vertical and shallow rotational penetrometers
AU - White, D. J.
AU - Stanier, S. A.
AU - Mohr, H.
N1 - Funding Information:
We acknowledge support from the RIGSS JIP (Fugro, Total, Woodside and Shell), the EPSRC Offshore Renewable Energy Supergen Hub (grant EP/S000747/ 1) and Prof. Mark Randolph and Dr Mark Schneider.
Publisher Copyright:
© 2022 the Author(s).
PY - 2022
Y1 - 2022
N2 - The mechanical properties of near-surface sediments – to a depth of approximately half a metre – are relevant to the design of cables, pipelines and other shallowly-embedded infrastructure, as well as benthic habitat characterisation. For this depth of interest, vertically-pushed penetrometers – such as the cone, T-bar or ball – can be supplemented by shallow rotational devices such as the toroid or hemiball. In this paper, we report vertical and shallow rotational penetrometer test procedures and show results obtained in project conditions on natural soil samples. By combining these different penetrometers, a wider and more reliable set of mechanical properties – spanning strength and consolidation behaviour – can be obtained, compared to conventional practice. The paper concludes with practical advice on testing protocols and interpretation methods to best characterise the shallow seafloor, including the use of novel shallow penetrometers.
AB - The mechanical properties of near-surface sediments – to a depth of approximately half a metre – are relevant to the design of cables, pipelines and other shallowly-embedded infrastructure, as well as benthic habitat characterisation. For this depth of interest, vertically-pushed penetrometers – such as the cone, T-bar or ball – can be supplemented by shallow rotational devices such as the toroid or hemiball. In this paper, we report vertical and shallow rotational penetrometer test procedures and show results obtained in project conditions on natural soil samples. By combining these different penetrometers, a wider and more reliable set of mechanical properties – spanning strength and consolidation behaviour – can be obtained, compared to conventional practice. The paper concludes with practical advice on testing protocols and interpretation methods to best characterise the shallow seafloor, including the use of novel shallow penetrometers.
UR - http://www.scopus.com/inward/record.url?scp=85145499432&partnerID=8YFLogxK
U2 - 10.1201/9781003308829-33
DO - 10.1201/9781003308829-33
M3 - Conference paper
AN - SCOPUS:85145499432
SN - 9781032312590
T3 - Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022
SP - 259
EP - 266
BT - Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022
A2 - Gottardi, Guido
A2 - Tonni, Laura
PB - CRC Press
T2 - 5th International Symposium on Cone Penetration Testing, CPT 2022
Y2 - 8 June 2022 through 10 June 2022
ER -