Results 11 to 20 of about 7,901 (298)
Soils and Foundations, 2022 Centrifuge modeling offers a viable tool for research in the soil-pile interaction, but this technique has not been used for helical piles in cohesive soils.
Weidong Li +2 more
doaj +1 more source
Behaviour of Single and Group Helical Piles in Sands from Model Experiments [PDF]
MATEC Web of Conferences, 2019 Mainly used foundations of oil sand plants are drilled shafts or driven piles. As environmental regulations become increasingly strict, complete removal of the foundation is becoming more important during the step of plant dismantling.
Bak Jongho +5 more
doaj +1 more source
A novel energy pile: The thermo-syphon helical pile [PDF]
Applied 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
Axial response and material efficiency of tapered helical piles
Journal 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
Numerical Modelling of Axially Loaded Helical Piles: Compressive Resistance [PDF]
E3S 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
The Performance of Helical Pile under Cyclic Load Using 3D-Finite Element Analysis [PDF]
Engineering and Technology Journal, 2022 Helical piles are a kind of foundation that can withstand compression, tension, and lateral stresses. However, this kind of pile was utilized extensively globally for almost 25 years. Its behavior, particularly in Iraq, is uncertain and frightening.
Ahmed Ali, Nahla Salim, Husam Baqir
doaj +1 more source
Buildings, 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
Optimization of inter-helix spacing for helical piles in sand
Journal of Rock Mechanics and Geotechnical Engineering, 2022 The optimization of the inter-helix spacing is a key issue of the axial bearing capacity of helical piles. In this paper, based on the cavity expansion, an analytical approach considering the small-strain stiffness, strength, compressibility and stress ...
Kang Shao +5 more
doaj +1 more source
The Influence of the Shaft on the Uplift Capacity of Single-Plate Helical Pile in Clay
Journal of Marine Science and Engineering, 2023 Helical piles with small sizes are widely used in traditional civil engineering infrastructure application, especially in onshore electrical power industry. The floating offshore wind power industry has taken an interest in helical piles because of their
Le Wang, Hongzhen Chen, Yinghui Tian
doaj +1 more source
Composite helical micro pile’s bearing capacity
IOP Conference Series: Materials Science and Engineering, 2020 Abstract It is proposed to use two options of piles’ bearing capacity calculation based on existing Russian codes. Calculation of pipe’s section for an axial load is proposed either. Results of these calculations are compared to the site tests made earlier.
Nikolai Vatin +2 more
openaire +1 more source