Experimental investigation on single model pile in sloping ground under lateral load

Begum, Narjis; Muthukkumaran, Kasinathan

doi:10.3328/ijge.2009.03.01.133-146

Cited by 49 publications

(5 citation statements)

References 8 publications

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“…In his study, the seabed instability manifested in movement of soil layers, exerts lateral forces that may cause large stresses in offshore foundations. Many researchers have also studied the influence of ground slope on laterally loaded pile behaviour (Muthukkumaran et al (2008); Almas Begum and Muthukkumaran (2009); Muthukkumaran (2014)).…”

Section: Introductionmentioning

confidence: 99%

Effect of seabed slope on pile behaviour of fixed offshore platform under lateral forces

Muthukkumaran

Arun

2015

J. Ocean Eng. Mar. Energy

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Fixed offshore platforms supported by pile foundations are required to resist lateral load due to wave and current forces. The response to environmental loads is strongly affected by the soil structure (pile) interaction. The forces exerted by waves are most dominant among the lateral environmental forces which governing the jacket structures design especially the foundation piles. The present investigation is to perform a static wave analysis on a typical fixed offshore platform for extreme environmental conditions, and to study the effects of the combined lateral and vertical loads on pile group foundation. The three dimensional modeling and analysis of the offshore platform are done using finite difference method. The present analysis was done under static condition considering the structural and the environmental loads at extreme environmental conditions, by reaching the state of static equilibrium. A parametric study has been done by varying the seabed slope to examine the variation in soilstructure interaction behaviour of piles. It has been found that the lateral displacement at the pile top and at the seabed level increases as the seabed slope increases. It is also noticed that the depth at which the maximum shear force and bending moment occurs from the pile top increases as the slope of the seabed increases.

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Section: Introductionmentioning

confidence: 99%

Effect of seabed slope on pile behaviour of fixed offshore platform under lateral forces

Muthukkumaran

Arun

2015

J. Ocean Eng. Mar. Energy

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“…A test tank of size 2 × 1 × 1 m (length × width × height) made of 5 mm thick sheet of mild steel was fabricated to facilitate lateral load on socketed model pile without any boundary effect as presented by Begum et al [1], Begum and Muthukkumaran [2] and Muthukkumaran and Begum [23]. Calculations for fixing the dimensions of the tank were based on the Rankine's theory and zone of influence of the pile by knowing the depth of fixity zf as suggested by Davisson and Robinson [6], η h = coefficient of modulus of subgrade reaction.…”

Section: Testing Chambermentioning

confidence: 99%

Estimation of lateral capacity of rock socketed piles in layered soil-rock profile

Prakash

Muthukkumaran

2021

Geo-Engineering

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Large diameter rock socketed piles were preferred for the purpose of transmission of a huge volume of both vertical and lateral load from superstructure to a deeper depth safely without any structural defects. A series of experimental program was conducted on model pile for studying the behaviour of the rock socketed pile under static lateral load in a soil-rock layered profile system. The model piles were instrumented with displacement and force transducers for measuring the magnitude of the pile movement and load transferred by the pile. The experimental results showed that the rock socketed pile lateral capacity has significantly affected by the depth of embedment of the pile in soil and depth of rock socket. There was a considerable increase in the lateral capacity of the pile when the depth of socketing is three times the diameter of the pile into rock with a minimum embedment. In the 3D socketed piles, the lateral capacity of the pile is almost 18 times higher than the non-socketed piles. From the experimental study, it is also observed that when the piles socketed more in to the hard strata (rock), the depth of fixity increases and the lateral displacement reduces substantially.

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“…Comodromos et al [14] presented a simple method for designing a pile foundation under combined loading. Begum and Muthukkumaran [15] achieved the research of laterally-loaded piles on a sloped surface through changing the slope angle and the relative density of the soil. Chien et al [16] reported the full-scale shaft load tests with axial load or lateral load only.…”

Section: Introductionmentioning

confidence: 99%

Model Test and Numerical Simulation of Single Pile Response under Combined Loading in Slope

Zhang

Wang

et al. 2020

Applied Sciences

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Vertical loads are commonly transferred by piles primarily in the upper structures. However, lateral loads are also significant compared with vertical loads in pile foundation design. Compared with a pile on level ground, there are many particular characteristics in a pile that is on sloping ground. These characteristics depend on the combined loading and the magnitude of the soil lateral displacement. In order to investigate the pile’s bearing characteristics, a model test was conducted and ABAQUS software was adopted to conduct 3D numerical simulation of a single pile with different slope angles under combined loads. The experimental results indicated that (1) the soil pressure along the slope direction was smaller than the other side, resulting in an asymmetry of the slope soil around the pile, and in turn introducing a horizontal thrust to the pile; (2) with the increase of slope angle, the horizontal thrust increased while the single pile’s bearing capacity decreased; (3) the vertical load caused more pile horizontal displacement with the growth of slope angle; and (4) the pile’s moment and the displacement also increased with the growth of the slope angle. The findings in this study can provide a useful reference in the design of piles or anti-slide piles in sloping ground.

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Experimental investigation on single model pile in sloping ground under lateral load

Cited by 49 publications

References 8 publications

Effect of seabed slope on pile behaviour of fixed offshore platform under lateral forces

Effect of seabed slope on pile behaviour of fixed offshore platform under lateral forces

Estimation of lateral capacity of rock socketed piles in layered soil-rock profile

Model Test and Numerical Simulation of Single Pile Response under Combined Loading in Slope

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