Modeling the lateral response of pile groups in cohesionless and cohesive soils

Al-Shamary, Jasim M. Abbas; Chik, Zamri; Taha, Mohd Raihan

doi:10.1186/s40703-017-0070-y

Cited by 17 publications

(7 citation statements)

References 23 publications

(63 reference statements)

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“…The results were explained, in terms of response of load with lateral displacement, load with soil resistance and corresponding p-y curves. It was found that the group interaction effect led to reduced lateral resistance for the pile in the group relative to that for the single pile [17].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Vertical Loads and the Pile Shape on Pile Group Response under Lateral Two-Way Cyclic Loading

Mahmood

Abbas

2019

Civ Eng J

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This paper is presented the lateral dynamic response of pile groups embedded in dry sand under influence of vertical loads and the pile shape in-group, which are subjected to the lateral two-way cyclic loads. The laboratory typical tests with pile groups (2×1) have an aluminum-pipe (i.e. circular, square) pile, embedded length to diameter of pile ratio (L/D=40) and spacing to diameter ratio (S/D) of 3, 5, 7 and 9 are used with different cyclic-load ratio (CLR) 0.4, 0.6 and 0.8. The experimental results are revealed that both the vertical and lateral pile capacity and displacement is significantly affected by the cyclic-loading factors i.e. (number of cycles, cyclic load ratio, and shape of pile) .In this study, important design references are presented. Which are explained that the response of the pile groups under cyclic lateral loading are clear affected by the attendance of vertical load and pile shape. Where, it is reduction the lateral displacement of group piles head and increase lateral capacity about (50) % compared without vertical loads. On the other side, the pile shape is a well affected to the pile response where the level of decline in lateral displacement at the pile groups head in the square pile is more than circular pile about 20 % at the same load intensity.

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Section: Introductionmentioning

confidence: 99%

The Effect of Vertical Loads and the Pile Shape on Pile Group Response under Lateral Two-Way Cyclic Loading

Mahmood

Abbas

2019

Civ Eng J

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“…We utilized medium mesh in this situation. Pile length, ground-water table, soil type, pile cap thickness, and other variables all influence pile group performance 37 – 42 . Various approaches can be used to study the influence of these factors.…”

Section: Methodsmentioning

confidence: 99%

Numerical analysis of pile group, piled raft, and footing using finite element software PLAXIS 2D and GEO5

Chimdesa,

Jilo

et al. 2023

Sci Rep

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Foundation plays a vital role in weight transfer from the superstructure to substructure. However, foundation characteristics such as pile group, piled raft, and footing remain unfolded due to their highly non-linear behaviour in different soil types. Bibliography analysis using VOSvierwer algorithm supported the significance of the research. Hence, this study investigates the load-bearing capacity of different types of foundations, including footings, pile groups, and piled rafts, by analyzing experimental data using finite element tools such as PLAXIS 2D and GEO5. The analysis involves examining the impact of various factors such as the influence of surcharge and the effect of different soil types on the load-bearing capabilities of the different types of foundation. For footing, parametric investigations using PLAXIS 2D are conducted to explore deformational changes. Pile groups are analyzed using GEO5 to assess their factor of safety (FOS.) and settling under various criteria, such as pile length and soil type. The study also provides insight into selecting the right type of foundation for civil engineering practice. Findings showed that different soil types have varying deformational behaviours under high loads with sandy soil having less horizontal deformation than clayey soil. Also, it was observed that increasing the pile thickness by 50% resulted in a reduction of 13.88% in settlement and an improvement of 16.66% in the FOS. In conclusion, this study highlights the importance of professionalism, exceptional talent, and outstanding decision-making when assessing the load-bearing capabilities of various foundation types for building structures.

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“…(1) TDR probe without PVC insulation. (2) TDR probe with PVC insulation of thickness 0.27 mm. (3) TDR probe with PVC insulation of thickness 0.64 mm.…”

Section: Construction Of Model Pilementioning

confidence: 99%

“…A bored pile is a reinforced-concrete foundation that supports a superstructure by transferring vertical loads into the ground [ 1 ]. Bored piles are subjected to lateral loads by soil pressure, in addition to vertical loads [ 2 ]. Thus, the presence of a necking defect, which is a decrease in the cross-sectional area of the bored pile, can lead to unsatisfactory performance of the bored pile.…”

Section: Introductionmentioning

confidence: 99%

Variations in Velocity and Sensitivity of Electromagnetic Waves in Transmission Lines Configured in Model Piles with Necking Defects Containing Soils

Kim

Lee

2020

Sensors

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This study investigates variations in the velocity and sensitivity of electromagnetic waves in transmission lines configured in defective model piles for the detection of necking defects containing soil. Experiments are performed with model piles containing defects filled with different materials, such as air, sands, and clay. Five different types of transmission lines are configured in model piles. The electromagnetic waves are generated and detected using a time domain reflectometer. The velocity of electromagnetic waves is highest when the defect is filled with air, and it decreases with an increase in the water content. The velocity is lowest when the defect is filled with clay. The sensitivity of transmission lines for detecting defects decreases with an increase in soil water contents. The transmission line with a single electrical wire and epoxy-coated rebar exhibits the highest sensitivity, followed by that with three and two parallel electrical wires. Transmission lines with a single electrical wire and uncoated rebar and those with two parallel electrical wires wrapped with a sheath exhibit poor sensitivity when the defect is filled with clay. This study demonstrates that electromagnetic waves can be effective tools for detecting necking defects with wet and conductive soils in bored piles.

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Modeling the lateral response of pile groups in cohesionless and cohesive soils

Cited by 17 publications

References 23 publications

The Effect of Vertical Loads and the Pile Shape on Pile Group Response under Lateral Two-Way Cyclic Loading

The Effect of Vertical Loads and the Pile Shape on Pile Group Response under Lateral Two-Way Cyclic Loading

Numerical analysis of pile group, piled raft, and footing using finite element software PLAXIS 2D and GEO5

Variations in Velocity and Sensitivity of Electromagnetic Waves in Transmission Lines Configured in Model Piles with Necking Defects Containing Soils

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