Study on vertical and batter piles subjected to lateral loads in different non-cohesive sub-soil conditions

Bajaj, Pankaj; Yadu, Laxmikant; Chouksey, Sandeep Kumar

doi:10.1080/19386362.2018.1564181

Cited by 14 publications

(4 citation statements)

References 20 publications

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“…At 20˚ batter angle, the maximum load capacity was achieved. [3] also performed a model study to observe the effect of lateral loads on vertical and batter pile under various sub-soil conditions. Mild steel piles having 19 mm and 17.4 mm outer and inner diameter respectively were used.…”

Section: Reese and Matlockmentioning

confidence: 99%

“…Several investigators have given well-established theories for evaluating piles and pile groups behavior under different independent loading conditions viz. lateral, vertical and uplift loading [3][4], [8][9][10][11][12][13][14][15][16][17][18][19][20][21], [23][24][25][26][27], [29], [34][35][36], [42]. Various authors have conducted studies on combined lateral-uplift loading, lateral-vertical loading [18,41].…”

Section: Introductionmentioning

confidence: 99%

“…Bajaj et al (2019a) [3] conducted an experimental investigation and applied the load as discussed in IS: 2911(Part 4) 1985[5]. The deflection values of the experiments were then compared with the analytical solutions existing in the literature pile for different loads.…”

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confidence: 99%

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A Comparative Study of Vertical and Batter Piles under Lateral Loading Conditions: A Review

Premjani

Yadu

Bajaj

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Laterally loaded piles are generally used where high lateral load acts on the structures. Vertical piles along with batter piles are used in structures such as chimneys, towers, dock and harbor structures, and high-rise buildings. Various techniques have been used in literature to solve the laterally loaded pile problems. Among them p-y method is preferred over all other methods. Various researchers have provided analytical solutions for vertical and batter pile problems and are discussed in this paper. Experimental investigations were also carried out by various researchers on vertical and batter piles, indicating that the negative batter piles offer large resistance to lateral loads when compared with the vertical piles. The deflection values obtained from the analytical solutions were also compared with the model tests and were found to be in a good agreement. Numerical modeling conducted by various researchers on vertical and batter pile foundation by various researchers is also discussed in this paper.

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Section: Reese and Matlockmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Comparative Study of Vertical and Batter Piles under Lateral Loading Conditions: A Review

Premjani

Yadu

Bajaj

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Batter piles are known for resisting high lateral loads but in current study the focus is on finding the uplift load capacity of the vertical as well as the batter pile having different angles. Various researchers ( [1], [3], [10][11][12][13][14][15][16][17][18][19][20], [22], [26], [28]) have already performed study on vertical and batter piles under lateral loads, but only a few have conducted study on uplift capacity of the vertical and batter piles [4], [9], [21], [27]. In the current study experiments were conducted on small scale model piles and it also includes the change of the slenderness ratios and variation of batter angles.…”

Section: Introductionmentioning

confidence: 99%

Study on Vertical Piles Batter Piles and Pile Groups Under Uplift Load Conditions in Non-Cohesive Sub-soil

Yadu

Bajaj

Premjani

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Model study was carried out in the laboratory to know the effect of uplift loads on vertical piles, batter piles and pile groups. Mild steel piles having 22 mm outer diameter and 1 mm thickness were considered for the study. Different slenderness ratios of 18, 28, and 38 and various angles such as 0°, 15°, 25°, 35°, and 45° were considered for the study. Sand was poured at a fixed relative density in the mild steel tank. The experimental study shows that the pile and pile group attain a maximum value of uplift load capacity when the batter angle reaches to 35°. Further, increase in batter angle causes a reduction in the uplift capacity of the pile. It is also noticed from the experiment that the uplift capacity increases with the slenderness ratio of the pile but its variation is not linear. Pile group of four piles with two vertical piles having L/D ratio 38 and two batter piles of L/D ratio 28 offers same resistance as of the same pile group with all the piles having L/D ratio 38. Numerical modeling was performed using Plaxis-3D to analyse the behavior of vertical piles, batter piles and pile groups under uplift loads. A good correlation between Plaxis-3D results and experimental results was observed.

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Behaviour of bio-inspired grouped battered minipiles under lateral loading in clay

2023

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The field of bio-inspired geotechnics has been growing in response to the demand for foundations that are sustainable and yet have improved load-bearing capacities. This study aims to address the gap in a specialised adaptation of root system architecture for designing resilient foundations. The lateral load behaviour of one such novel grouped battered minipile configuration is evaluated in this study based on full-scale field testing and numerical modelling to report the unknown increase of load capacity caused by shape modification. First, three single minipiles battered at 0° and 25° were subjected to static lateral loading in fine-grained soil. The strain profiles along the individual minipile shafts were obtained using optic fibre sensors. Consecutively, full-scale lateral load tests on two types of minipile groups were also performed; one group had a configuration of two 25° battered minipiles perpendicular to the direction of loading mimicking a tree-root system, and another conventional group had two positive and negative battered minipiles. A numerical model was developed to investigate the effect of pile spacing and obtain soil pressures, bending moments and axial forces of the battered minipile groups. Results show that increased bearing area and higher engagement of soil volume for the novel minipile group with two perpendicular battered minipiles were larger than the conventional minipile group; thus, the former offered higher lateral resistance. The deflection pattern, bending moment and p-y curves showed a shadowing effect in stiff clay for battered minipile groups at a pile head spacing of three times the minipile diameter.

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Study on vertical and batter piles subjected to lateral loads in different non-cohesive sub-soil conditions

Cited by 14 publications

References 20 publications

A Comparative Study of Vertical and Batter Piles under Lateral Loading Conditions: A Review

A Comparative Study of Vertical and Batter Piles under Lateral Loading Conditions: A Review

Study on Vertical Piles Batter Piles and Pile Groups Under Uplift Load Conditions in Non-Cohesive Sub-soil

Behaviour of bio-inspired grouped battered minipiles under lateral loading in clay

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