Results 11 to 20 of about 17,750 (302)

Predicting the Compression Capacity of Screw Piles in Sand Using Machine Learning Trained on Finite Element Analysis

open access: yesGeotechnics
Screw piles (often referred to as helical piles) are widely used to resist axial and lateral loads as deep foundations. Multi-helix piles experience complex interactions between the plates which depend on the soil properties, pile stiffness, helix ...
David Igoe   +2 more
doaj   +3 more sources

Using geopolymer coated and uncoated geotextile as a hybrid method to improve uplift capacity of screw piles in cohesionless soil

open access: yesAlexandria Engineering Journal
In this research, experimental studies and numerical analyses were carried out to investigate how the usage of geotextile and geopolymer coated geotextile as a hybrid method changes the uplift behavior of the screw piles in cohesionless soil.
Talha Sarici, Mustafa Ozcan
doaj   +3 more sources

Compressive Capacity of Triangular Screw Piles Group Embedded in Soft Clay

open access: yesDiyala Journal of Engineering Sciences, 2020
Screw piles are used in different projects such as underpinning, lateral support of retaining wall, foundation of tower and under pipeline. In recent years, the use of screw piles became wide in all world as a result of low cost, ease of installation ...
Abeer S. Jamill, Hassan O. Abbas
doaj   +1 more source

Experimental study on bearing mechanism of screw cast-in-place piles under vertical loads

open access: yesYantu gongcheng xuebao, 2021
The screw cast-in-place pile is a kind of variable-section cast-in-place pile with cylindrical top and threaded bottom. Due to its special construction technology and section form, the bearing mechanism of screw piles is different from that of piles with
WANG Shu-guang 1, 2, FENG Zhe 3, TANG Jian-zhong 1, ZHAO Zhi-peng 1
doaj   +1 more source

Deterministic and Probabilistic Analyses of the Bearing Capacity of Screw Cast in Situ Displacement Piles in Silty Soils as Measured by CPT and SDT

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2023
The bearing capacity of screw cast in situ displacement piles is mostly unexplored. There is also insufficient research on piles in silty soils. Therefore, five cone penetration tests (CPT) and one piezocone penetration test (CPTu) using direct methods ...
Lehar Leetsaar, Leena Korkiala Tanttu
doaj   +1 more source

FEM modelling of screw displacement pile interaction with subsoil [PDF]

open access: yesArchives of Civil Engineering, 2023
Predicting the Q–s settlement characteristics of piles is an important element in the designing of pile foundations. The most reliable method in evaluating pile-soil interaction is the static load test, preferably performed with instrumentation for ...
Paweł Wiecławski, Adam Krasinski
doaj   +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

Influence of Spacing and Cross-Sectional Shaft of Screw Piles Group on Lateral Capacity

open access: yesDiyala Journal of Engineering Sciences, 2021
Although there are several high-capacity screw piles in use currently, there are few studies on their lateral performance. The aim of this study is to investigate the lateral behaviour of several models of screw pile group (1×2), (2×1), and (2×2 ...
Azhar Subhi, Hassan O. Abbas
doaj   +1 more source

Design of tower type structures to dynamic effects taking into account flexibility of the pile foundation and the base [PDF]

open access: yesИнженерно-строительный журнал, 2013
The necessity to take into account flexibility of pile foundation in design of such structures as towers for mobile communication or radio equipment especially under dynamic loads (seismic, fluctuating component of wind load and the resonant vortex ...
V.A. Sokolov   +2 more
doaj   +1 more source

Development of an inflight centrifuge screw pile installation and loading system [PDF]

open access: yes, 2016
To simulate the prototype installation behaviour of screw piles at realistic confining stress lev-els, a new installation and loading rig, consisting of two independently-controlled servo-motor drive systems was developed to allow screw pile models to be
Al-Baghdadi, T. A.   +2 more
core   +2 more sources

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