Results 11 to 20 of about 162,744 (283)

Parametric Study of Lateral Load on Helical Pipe Piles in Clay

open access: yesGeotechnics
In the past decades, as the world has placed emphasis on green energy, solar energy has become a favorable option. Different piled foundations have been designed to strengthen the structure supporting the solar panels.
Guowei Sui   +3 more
doaj   +2 more sources

Review of torque models for offshore helical piles [PDF]

open access: yesE3S Web of Conferences, 2020
Helical (or screw) piles, sometimes defined as anchors, are a piled system consisting of one or multiple helices welded along the shaft. Piles are installed by applying a torque to the shaft.
Spagnoli Giovanni   +1 more
doaj   +2 more sources

Helical Piles Embedded in Expansive Soil Overlaying Sandy Soil

open access: yesAl-Khawarizmi Engineering Journal, 2016
In this study, the behavior of square helical piles models (5×5) mm2 embedded in expansive soil bed overlaying a layer of sandy soil was investigated. The sand layer 200mm thickness was compacted into four sub layers in a steel container with diameter ...
Hassan Obaid Abbase   +1 more
doaj   +3 more sources

Efficiency of RCC piles with helical grooves subjected to axial and lateral loads in cohesionless soil

open access: yesCogent Engineering
This paper presents an experimental and numerical investigation of RCC (Reinforced Concrete) piles with helical grooves under axial and lateral loads in cohesionless soil.
Arun Kumar Y. M.   +2 more
doaj   +2 more sources

The occurrence of residual stresses in helical piles

open access: yes, 2015
15th Pan-American Conference on Soil Mechanics and Geotechnical Engineering, XV PCSMGE , BUENOS AIRES, ARGENTINE, 15-/11/2015 - 18/11/2015Residual stresses generated during the pile installation are usually observed and considered in the interpretation ...
de H. C. Tsuha, Cristina   +3 more
core   +2 more sources

Physical modelling of helical screw piles in sand

open access: yes, 2010
Empirical correlations between installation torque and uplift capacity of helical screw piles are frequently employed as a procedure for on site quality control of this type of foundation.
Aoki, N.   +4 more
core   +5 more sources

Axial response and material efficiency of tapered helical piles

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2021
Different techniques have been proposed to increase the bearing capacity of open-ended piles. Welding helices to the shaft and tapering the pile shaft could be used simultaneously to enhance the static and dynamic behaviors of these piles.
Hamid Mortazavi Bak   +3 more
doaj   +1 more source

Two-phase flow of gas-liquid mixtures on horizontal helical pipes [PDF]

open access: yes, 2007
The aim of this study was to investigate hydrodynamic two -phase (namely water and air) fluid flow characteristics in helical pipes of low amplitude and straight pipes of the same internal-diameter and constructional material: the results for the two ...
Adedigba, A. G
core   +7 more sources

Axial bearing capacity of helical piles in moist and saturated conditions using frustum confining vessel (FCV) [PDF]

open access: yesNumerical Methods in Civil Engineering, 2023
Due to the increasing demand in construction and use of different types of piles on the one hand and the high cost of conducting large-scale tests on different types of piles, on the other hand, new methods have been proposed to study the behavior of ...
Ali Jassim   +2 more
doaj   +1 more source

A novel energy pile: The thermo-syphon helical pile [PDF]

open access: yesApplied Thermal Engineering, 2019
Abstract This study focuses on assessing the heat transfer rate and structural stability of a novel self-operating energy pile based on the principle of a thermo-syphon. Specifically, this new energy pile, referred to as a “thermo-syphon helical pile” (THP), is formed by pressurizing a hollow helical pile with carbon dioxide (CO2) to form a heat pipe,
Huang, Jie   +5 more
openaire   +3 more sources

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