Results 11 to 20 of about 3,160 (196)

Observations during suction bucket installation in sand [PDF]

, 2020
Suction buckets represent a viable solution as foundations for offshore wind turbines. Installation in sand is relatively straightforward, albeit with limited understanding of the resulting changes in soil state.
O'Loughlin, C, Ragni, R, Stanier, S, Bienen, B, Cassidy, M, ,   +5 more
core   +1 more source

Soil conditions and bounds to suction during the installation of caisson foundations in sand [PDF]

, 2014
Suction installation of caisson foundations is widely adopted in the oil offshore industry. When such foundations are installed in sand, seepage conditions are known to play a pivotal role in the installation process.
Alani, Amir M., Alani, Amir, Mehravar, Moura; id_orcid, Mehravar, Moura, Harireche, Ouahid   +4 more
core   +1 more source

Modelling Suction Caisson Installation in Sand using FLAC3D

, 2014
Suction caisson foundations have been very popular in oil and gas industry and the current trend is to extend their use to offshore wind farms. A suction caisson is an upturned ‘bucket’ of cylindrical shape made from steel.
Alani, A.M., Harireche, O., Mehravar, M., Alani, Amir, Amir Alani, Mehravar, Moura, Moura Mehravar, Harireche, Ouahid, Ouahid Harireche   +8 more
core   +3 more sources

Precision planter monitoring system based on mobile communication network

IET Networks, EarlyView., 2022
Abstract Sowing is an important link in agricultural production and the basis for ensuring high yields and bumper harvests. Agriculture requires precision plows with good performance and stable work. However, the seeding process is in a completely closed state, and the operator relies mainly on experience to judge the operating state and performance of
Bing Li, Jiyun Li
wiley   +1 more source

Field investigation of the effect of installation method on the shaft resistance of piles in clay

, 2010
This paper presents the results of a series of field experiments performed to study the effect of installation method on the shaft resistance developed by a pile installed in soft clayey silt.
Gallagher, David, Doherty, Paul, McCabe, Bryan, Gavin, Kenneth, Bryan McCabe, Paul Doherty, Kenneth Gavin, David Gallagher   +7 more
core   +1 more source

Insights into Suction Caisson Installation Utilising the Material Point Method

, 2021
There is an increasing interest to utilise suction caissons as foundations for offshore wind turbines. Significant research has been devoted to developing penetration prediction methods and to understand the in-service response under cyclic loading ...
Grabe, Jürgen, J. Grabe, B. Bienen, M. Stapelfeldt, Stapelfeldt, Marc, Bienen, Britta   +5 more
core   +1 more source

Mixing‐Driven Defects and Composition Evolution in Multi‐Material Metal Additive Manufacturing

Advanced Science, EarlyView.
Operando synchrotron X‐ray imaging coupled with high‐fidelity multiphysics modeling uncovers how inter‐material mixing reshapes keyhole dynamics and drives distinct pore‐formation pathways in multi‐material laser powder bed fusion (LPBF). Composition‐dependent instabilities trigger defects, whereas rescanning suppresses porosity and homogenizes Cu ...
Zhilang Zhang, Steve Gaudez, Mario Togni, Steven Van Petegem, Markus Bambach, Mamzi Afrasiabi   +5 more
wiley   +1 more source

Investigation of the Penetration Resistance Coefficients for the CPT-Based Method for Suction Bucket Foundation Installation in Sand

, 2022
The current practice for estimating the penetration resistance of suction bucket foundations requires breaking down the penetration resistance into tip and skirt resistance components.
Ibsen, Lars Bo, Barari, Amin, Rodriguez, Francisco Manuel Garcia, Koteras, Aleksandra Katarzyna   +3 more
core   +1 more source

Numerical Study of Piping Limits for Suction Installation of Offshore Skirted Foundations an Anchors in Layered Sand [PDF]

, 2010
Skirted foundations and anchors have proved to be competitive solutions for various types of fixed offshore platforms, subsea systems and an attractive foundation alternative for offshore wind turbines. One main design challenge for skirted structures in
Ibsen, Lars Bo, Thilsted, C. L.
core   +2 more sources

Mechanical Response of Suction Anchors During Suction-Assisted Penetration in Layered Soils Based on the Material Point Method (MPM)

Buildings
Suction anchors are widely used in offshore wind power foundations, where their penetration behavior critically influences installation efficiency and safety.
Yu Zhou, Enze Yi, Huihuan Ma
doaj   +1 more source