Results 21 to 30 of about 3,665 (285)

Prediction of vertical bearing capacity of waveform micropile [PDF]

open access: yes, 2019
This study proposes a predictive equation for bearing capacity considering the behaviour characteristics of a waveform micropile that can enhance the bearing capacity of a conventional micropile.
Han, J.-T.   +3 more
core   +1 more source

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

open access: yes, 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   +3 more
core   +2 more sources

Effect of helicity and rotation on the free decay of turbulent flows [PDF]

open access: yes, 2008
The self-similar decay of energy in a turbulent flow is studied in direct numerical simulations with and without rotation. Two initial conditions are considered: one non-helical (mirror-symmetric), and one with maximal helicity.
P. D. Mininni   +4 more
core   +2 more sources

Effect of Fractional Kinetic Helicity on Turbulent Magnetic Dynamo Spectra [PDF]

open access: yes, 2001
Magnetic field amplification in astrophysics ultimately requires an understanding of magnetohydrodynamic turbulence. Kinetic helicity has long been known to be important for large scale field growth in forced MHD turbulence, and has been recently ...
Blackman E. G.   +2 more
core   +3 more sources

Analysis of the Installation Effect on the Axial Performance of Pressure-Grouted Helical Piles in Clay by Small-Scale Model Tests

open access: yesBuildings, 2022
A pressure-grouted helical pile (PGHP) is a stiffened helical pile installed by using the simultaneous drilling and grouting technique. The formation of the soil-cement column surrounded by the helical pile is influenced by the multiple installation ...
Xiaoxuan Zhuang   +3 more
doaj   +1 more source

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

open access: yes, 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   +2 more
core   +2 more sources

The Study of the Failure Envelopes of Hollow Shaft Single-Plate Helical Piles in Clay

open access: yesJournal of Marine Science and Engineering, 2023
Helical piles are utilized worldwide as foundations for onshore infrastructure, providing fast installation and high capacity. Their unique advantages have led to their potential as an alternative to monopile foundations for offshore wind turbines.
Le Wang   +6 more
doaj   +1 more source

Numerical Modelling of Axially Loaded Helical Piles: Compressive Resistance [PDF]

open access: yesE3S Web of Conferences, 2021
Helical piles are foundation systems used to support compression, tension, and lateral loads. However, this type of piles was used around the world for more than 25 years. Its behavior, especially in Iraq, is still unknown and scare. The present study is
Ali Ahmed. S.   +2 more
doaj   +1 more source

Large-diameter helical pile capacity – torque correlations [PDF]

open access: yesCanadian Geotechnical Journal, 2017
Large-diameter helical piles are utilized increasingly to support heavy structures. Both the magnitude of the required installation torque and the pile capacity can be directly attributed to the soil shearing resistance developed over the embedded area of the pile including the shaft and helical plates.
Harnish, Jared, El Naggar, M. Hesham
openaire   +1 more source

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

open access: yes, 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   +25 more
core   +2 more sources

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