Results 241 to 250 of about 1,312 (280)

Axial Performance of Helical Tapered Piles in Sand

Geotechnical and Geological Engineering, 2017
The axial capacity of novel spun-cast ductile iron (SCDI) tapered pile fitted with a lower helical plate is investigated. Seven instrumented piles, five SCDI tapered and two steel straight shafts, were installed in sand soil using mechanical torque. The piles were tested under axial compressive loading and their ultimate capacities were determined.
Ahmed Fahmy, M. Hesham El Naggar
openaire   +1 more source

Performance-Based Design Method for Multiple Helices of Helical Pile in Cohesionless Soil

Transportation Research Record: Journal of the Transportation Research Board, 2022
Multiple helices are being used frequently in helical pile applications nowadays. This paper presents multiple helices on simplified field design charts for small diameter helical piles that relate service compressive load and soil parameters as a group with the pile parameters.
Nur Mohammad Shuman, Mohammad Sadik Khan, Farshad Amini   +2 more
openaire   +1 more source

Physical modelling of helical screw piles in sand

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. In this work a theoretical relationship between uplift capacity and installation torque of deep helical screw piles in sand is proposed.
de Hollanda Cavalcanti Tsuha, C., Aoki, N., Rault, Gérard, Thorel, Luc, Garnier, Jacques   +4 more
openaire   +3 more sources

Performance of helical piles in oil sand

Canadian Geotechnical Journal, 2009
The results of a comprehensive pile load-test program and observations from field monitoring of helical piles with either a single helix or double helixes installed in oil sand are presented in this paper. Eleven full-scale pile load tests were carried out including axial compression, uplift, and lateral load tests.
openaire   +1 more source

Lateral Performance of Large-Capacity Helical Piles

IFCEE 2015, 2015
The lateral performance of large-capacity helical piles is of significant interest because they can offer an efficient alternative to conventional piling systems in many applications. This paper presents the results of two field lateral load tests conducted on 6.0 m and 9.0 m large-capacity helical piles installed in cohesive soil.
Mohamed A. Elkasabgy, M. Hesham El Naggar   +1 more
openaire   +1 more source

Numerical analysis of helical piles in cohesionless soil

International Journal of Geotechnical Engineering, 2017
The paper presents a numerical investigation carried out for helical pile installed in loose cohesionless soil with varying density and dimensions of the helical blade/shaft.
Balu E. George, Subhadeep Banerjee, Shailesh R. Gandhi   +2 more
openaire   +1 more source

Lateral Performance of Helical Pile in Cohesionless Soil

2021
Helical pile is one of the deep foundation system used to support the axial compression, axial tension, and lateral loading. Helical piles use as foundation for wind farms, transmission tower, pipelines, for underpinning, monopole, etc., as axial and lateral support.
Raunak Sinha, S. P. Dave, S. R. Singh
openaire   +1 more source

Lateral Resistance of Helical Piles in Oil Sands

Contemporary Topics in Deep Foundations, 2009
Although there are several methods available for estimating the axial capacities of helical piles, there is little literature available on the lateral performance of helical piles. The results of a lateral pile load test program and field monitoring of helical piles with either single or double helixes installed in oil sand soil are presented in this ...
openaire   +1 more source

Osterberg Cell Load Testing on Helical Piles

Geo-Frontiers 2011, 2011
Helical piles are structural, deep foundation elements used as a means to transfer the applied axial and horizontal loads, and overturning moments from the superstructure to the soil substructure, within a specified criterion. The design process is complex and incorporates various degrees of uncertainties.
Mehmet Aydin, Thomas D. Bradka, Denton A. Kort   +2 more
openaire   +1 more source

Helical Anchor Piles Under Lateral Loading

1984
Anchors are used in civil engineering practice to provide resistance against uplift and overturning forces for structures such as transmission line towers, aircraft mooring, pipelines, offshore structures, mobile homes, and so forth. Although there are a wide variety of anchor types available, helical screw anchors, consisting of a steel shaft to which
VK Puri, RW Stephenson, E Dziedzic, L Goen   +3 more
openaire   +1 more source