Influence of vertical load on the lateral response of piles in sand

Karthigeyan, S.; Ramakrishna, V. V. G. S. T.; Rajagopal, K.

doi:10.1016/j.compgeo.2005.12.002

Cited by 146 publications

(71 citation statements)

References 13 publications

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“…On the other hand, for the case of cohesive soils, the lateral deflection increases with axial load indicating reduction in the lateral capacity of the piles. This behavior was also observed by [1,2] In general, the maximum lateral pile displacement occurred in the pile tip. It can be noticed that the pile with slenderness ratio of 10D (short pile) has a point of rotation located between 2-2.5D from the base of pile.…”

Section: Evaluation Of Lateral Pile Displacementsupporting

confidence: 50%

“…The values of maximum lateral soil pressure occurred at L/5D from the ground surface (pile tip). This depth represents critical depth for analysis and design of a single isolated loaded pile as reported by [1,2] One of the main findings is that the surface resistance for both cases of cohesionless and cohesive soil reached minimum value but did not reach zero under all vertical loads. This finding is similar to [16] who again obtained the results without vertical loads.…”

Section: Evaluation Of Lateral Soil Pressurementioning

confidence: 88%

“…These methods were developed to improve the assessment of the pile in pure lateral load, for example [1, 5, 6, 7, 8, 9 and 10]. Whereas, few researches observed include the analysis of the pile under different combination of axial and lateral load as reported by Karthigeyan et al, [1,2]. This assessment was limited and not covered for example the influence of slenderness ratio on the lateral pile response.…”

Section: Introductionmentioning

confidence: 99%

“…In most practical situations, there is a need to assess the behavior of piles under simultaneous vertical and horizontal loadings because piles are commonly designed to carry either horizontal or vertical loads [1,2]. Nevertheless, in long buildings such as bridges abutments, offshore structure, transmission towers, etc., the piles carry not only axial load but also combination of axial (vertical) and lateral (horizontal) forces.…”

Section: Introductionmentioning

confidence: 99%

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Lateral Pile Response Subjected to Different Combination of Loadings

Abbas

Chik

Taha³

2017

JESTR

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Pile-soil interaction has been a subject of interest to many earlier researchers. However, not much work has been done on the effects of structural response of single piles subjected to different combination of axial and lateral loads and hence the respective pile-soil interaction. The main objectives of this paper are to assess the influence of axial load intensities on the lateral single isolated pile response in various pile slenderness ratios. Three-dimensional finite element approach was used to simulate the whole geotechnical system. The finite element included linear elastic model to represent the pile, Mohr-Coulomb to model surrounded soil and 16-nodes interface element to simulate the pile-soil interface. It was found that the lateral deflection is increased with increased the axial load in case of cohesionless soils. While, in case of cohesive soil, reduction in lateral pile displacement is occurred when low axial load is applied (i.e. V less than 4H) and increased when axial load level (i.e. V more than 6H) has been increased.

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Section: Evaluation Of Lateral Pile Displacementsupporting

confidence: 50%

Section: Evaluation Of Lateral Soil Pressurementioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Lateral Pile Response Subjected to Different Combination of Loadings

Abbas

Chik

Taha³

2017

JESTR

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“…The effect of a vertical load on pile lateral capacity and the pile response under combined axial and lateral loads has been investigated widely for straight shafted piles (SSPs), as summarised by Lee et al (2011), with the obtained varying results depending on whether or not theoretical or experimental studies were carried out. For instance, the summary provided by Lee et al (2011) suggests that for theoretical studies on driven piles installed in sand it is typical to obtain increased deflection and bending moments with only the study of Karthigeyan et al (2006) predicting decreased deflections, although this was for non-displacement piles. Early experimental studies typically suggest decreased lateral pile deflections in the presence of vertical loading.…”

Section: Introductionmentioning

confidence: 99%

Effects of vertical loading on lateral screw pile performance

Al-Baghdadi

Brown

Knappett

et al. 2017

Proceedings of the Institution of Civil Engineers - Geotechnica

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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. One potential solution is to upscale onshore screw piles but they require verification of performance for new geometries and demanding loading regimes. This paper presents a three-dimensional finite-element analysis investigation of screw pile behaviour when subjected to combined vertical and lateral loading in sand. In the investigation, the screw pile length and helical plate diameter were varied on piles with a fixed core diameter while subjecting the piles to combined axial and lateral loading. The results were compared with results from straight shafted piles with the same core diameter. The results of the analysis revealed that vertical compression loads increased the lateral capacity of the screw piles whereas vertical uplift loads marginally reduced the lateral capacity. The downside of this enhanced lateral capacity is that the screw piles experience higher bending moments. This suggests that, when using screw piles for offshore foundation applications, structures should be designed to maintain axial compressive loads on the piles and induced bending moments need to be adequately assessed when deciding on appropriate structural sections.

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