Effect of fin width on torpedo anchor penetration and pullout using model tests with transparent soils

A Ads, M Iskander, S Bless, M Omidvar - Ocean Engineering, 2024 - Elsevier
Torpedo anchors are increasingly popular for tethering of offshore structures. Using fins
improves their directional stability during penetration, however, fins' shape affects both …

Laboratory test and empirical model for shear modulus degradation of soft marine clays

J Leng, G Ye, B Ye, DS Jeng - Ocean Engineering, 2017 - Elsevier
The change in the shear modulus of clays under repeat environmental loads is an important
factor in the design of offshore and onshore foundations. A degradation model for the shear …

A novel T-bar test method ensuring full-flow mechanism in stiffer clay

Y Han, L Yu, Z Wang, Q Yang, Y Hu - Géotechnique, 2023 - icevirtuallibrary.com
The T-bar penetrometer is currently used to characterise seabed sediments, mostly based
on the full-flow mechanism around the probe in soft clays. However, open and trapped …

Shear strength of a synthetic transparent soft clay using a miniature ball penetrometer test

A Ads, M Iskander, S Bless - Geotechnical …, 2020 - asmedigitalcollection.asme.org
This article is concerned with the properties of Laponite colloids, which are being used as a
transparent surrogate for soft natural clays. Laponite is a synthetic smectite clay similar to …

Experimental study on the undrained shear strength of deep-sea soft soil using improved T-bar penetrometer

Y Ren, Q Yang, Y Wang, W Zhao - Marine Georesources & …, 2020 - Taylor & Francis
This paper presents an experimental investigation on the ultra-soft marine soil recovered
from the seabed in deep-water areas in South China Sea (SCS). An improved T-bar …

Case study of large-scale levee failures induced by cyclic softening of clay during the 2016 Meinong earthquake

CC Tsai, ZX Yang, MH Chung, SY Hsu - Engineering Geology, 2022 - Elsevier
Abstract The 2016 Meinong earthquake (Meinong EQ) caused a serious disaster, including
many liquefaction-induced damages, in southern Taiwan. This study investigated the “flow …

Generalized simple model for predicting the modulus degradation and strain accumulation of clay subject to long-term undrained cyclic loading

CC Tsai - Ocean Engineering, 2022 - Elsevier
Modulus degradations and strain accumulations of clays under repeated environmental
loads are important factors in the design of offshore foundations. In this study, a simple …

Strain softening parameters estimation of soft clay by T-bar penetrometers

Y Han, L Yu, Q Yang - Applied Ocean Research, 2020 - Elsevier
The T-bar penetrometer is a key tool to estimate the strain softening parameters by repeating
penetration and extraction. In this study, the cyclic penetration process of T-bar is simulated …

Optimized strain softening model for marine clay from cyclic full-flow penetration and extraction tests

Y Han, Q Yang, L Yu, Y Ren - Ocean Engineering, 2020 - Elsevier
Strain softening is a major feature of marine clay that plays an important role in offshore
geotechnical problems. One of the widely used strain softening models is introducing an …

Influence of Penetration Rate on Full-Flow Penetrometer Resistance in Underconsolidated Clay

H Qiao, X Liu, R Zhou, H He, P Peng… - Journal of Marine Science …, 2024 - mdpi.com
In the past few years, offshore site investigations have extensively utilized full-flow
penetrometers like the Ball and T-bar penetrometers to assess penetration resistance and …