Results 31 to 40 of about 3,703 (298)

Effects of vertical loading on lateral screw pile performance [PDF]

, 2017
The offshore wind energy sector faces new challenges as it moves into deeper water deployment. To meet these challenges, new and efficient foundation solutions are required.
Al-Baghdadi, Therar, Al-Defae, Asad H., Brown, Michael J., Knappett, Jonathan A.   +3 more
core   +2 more sources

Lateral Dynamic Response of Helical Pile in Viscoelastic Foundation Considering Shear Deformation

Applied Sciences, 2023
Helical piles are a new type of pile that has good application prospects, and researchers have carried out an in-depth investigation into their vertical uplift and compressive bearing capacity.
Xiaoyan Yang, Chaozhe Wang, Sheng Cao, Fengxi Wang, Wenbing Wu   +4 more
doaj   +1 more source

Nonlinear dynamic intertwining of rods with self-contact [PDF]

, 2007
Twisted marine cables on the sea floor can form highly contorted three-dimensional loops that resemble tangles. Such tangles or hockles are topologically equivalent to the plectomenes that form in supercoiled DNA molecules. The dynamic evolution of these
Goyal, Sachin, Lee, Christopher L., Perkins, N. C.   +2 more
core   +2 more sources

CHD pile performance, Part I:Physical modelling [PDF]

, 2016
The Continuous Helical Displacement (CHD) pile is an auger displacement pile developed by Roger Bullivant Ltd in the UK. It has performance characteristics of both displacement and non-displacement piles due to the nature in which it is installed.
Bell A, Berezantzev VG, Brown MJ, Busch P, Bustamante M, Fleming WGF, GCG (Geotechnical Consulting Group), Jamiolkowski M, Jeffrey JR, John Ross Jeffrey, Jonathan Adam Knappett, Jonathan David Ball, Karlis Caucis, Katzenbach R, Kenny MJ, Lauder K, Meyerhof GG, Michael John Brown, Mindess S, Mitsch MP, Randolph MF, Thorburn S, Ueno K, van Impe WF, Wade S, Young HD   +25 more
core   +2 more sources

Settlement based load capacity curve for single helix helical pile in c - ϕ soil

Soils and Foundations, 2023
Helical piles are getting increasingly popular for lightweight engineering applications. Currently, the helical pile is mostly designed with torque capacity; however, it cannot explain the foundation's anticipated settlement.
Nur Mohammad Shuman, Sadik Khan, Farshad Amini   +2 more
doaj   +1 more source

Last orbits of binary black holes

, 2002
Binary black hole systems in the pre-coalescence stage are numerically constructed by demanding that the associated spacetime admits a helical Killing vector. Comparison with third order post-Newtonian calculations indicates a rather good agreement until
Bonazzola, Silvano, Gourgoulhon, Eric, Grandclement, Philippe   +2 more
core   +1 more source

Analysis of model helical piles subjected to axial compression

Građevinar, 2020
An investigation into axial compression capacity of single helical piles placed in dry sand through laboratory model tests and numerical analyses is presented.
Yakup Türedi, Murat Örnek
doaj   +1 more source

Angola Cameia Development Casing-Settlement Calculations [PDF]

, 2017
The amount of axial settlement of casings supported by regions of axial elastic foundations is computed. The differential equation of axial equilibrium, including the foundation stiffnesses, is solved by use of cubic axial finite elements.
Akin, J. Ed, Dove, N. Roland, Ruddy, Ken
core   +1 more source

Effect of geometric characteristics of helical piles on the lateral displacement in sandy slopes by loading surcharge

Results in Engineering
Helical piles are a group of deep foundations with a good bearing capacity against axial and lateral forces. Despite extensive research on the performance on flat ground, fewer studies have been conducted on the performance of helical piles on slopes ...
Mir abas Bahri, Mahyar Arabani
doaj   +1 more source

FEATURES OF CALCULATION OF UNEVEN SWELLING SCREW PILES OF OIL AND GAS PIPELINES IN FROZEN GROUND

Вестник СибАДИ, 2017
The article is devoted to the problem of buckling of helical piles and deformation of the superstructure of oil and gas pipelines under the action of forces of frost heaving of soils.
V. N. Kuznetsova, M. V. Oryol
doaj   +1 more source