Depth of Fixity of Piles in Clay Under Dynamic Lateral Load

Ayothiraman, Ramanathan; Boominathan, A.

doi:10.1007/s10706-012-9597-z

Cited by 12 publications

(4 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A multistage loading was carried out. According to the Chinese Code JGJ106-2003 [26] and Ayothiraman et al [27], when the load is below 300 N, the increment is 50 N. When the load is within 300-1000 N, the increment is 100 N. If the value of each LVDT is less than twice the value of the previous stage and converges within 5 min, the next stage is applied after 10 min. Otherwise, the loading is stopped.…”

Section: Test Proceduresmentioning

confidence: 99%

Experimental Study on Deformation and Load Transfer Mechanisms of Symmetrical Batter Piles under Vertical Loading

Liu

Han

et al. 2021

Applied Sciences

View full text Add to dashboard Cite

Under the action of vertical loading, batter piles rarely appear individually, as they undergo horizontal and vertical displacements at the same time and produce a sizeable additional bending moment. However, previous studies have mainly focused on a single batter pile, which is inconsistent with engineering practices. Although single pile tests can easily reveal its working behavior, they also ignore two important factors, namely, the internal force redistribution caused by the deformation limitation of the mirror-like pile, and the interaction between the symmetrical piles and “clamped” soil (the soil between two symmetrical piles). Therefore, this paper took symmetrical batter piles as the test object to explore the influence of the two factors on the load transfer mechanism. Moreover, the deformation mode, distribution of inertial forces, and group effect of symmetrical batter piles were also discussed. The results showed that the “clamping effect” caused by the pile deformation had a significant impact on the load transfer. Under vertical loading, the flexible symmetrical floating batter piles were the only deformation mode. Under the constraint of the cap and mirror-like batter piles, the symmetrical conformation partially compensated for the disadvantage of the additional bending moment.

show abstract

Section: Test Proceduresmentioning

confidence: 99%

Experimental Study on Deformation and Load Transfer Mechanisms of Symmetrical Batter Piles under Vertical Loading

Liu

Han

et al. 2021

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…12 Shadow stress zone and gap formation in LLP group [86] layer for the purpose of analysis [7]. For example in the Winkler approach which considers the soil as a layered system to study the lateral resistance of piles, the soil pressure p is related to lateral deflection y through the modulus of subgrade reaction k h of the particular layer,…”

Section: Vertical Soil Profilementioning

confidence: 99%

“…The soil-pile system behaves predominantly in a nonlinear fashion close to the resonance region under dynamic loads [6,7,13]. The maximum dynamic BM is magnified by about 1.5 times the maximum static BM for model piles in clay.…”

Section: Dynamic Loadingmentioning

confidence: 99%

A review on soil–structure interaction analysis of laterally loaded piles

Kavitha

Beena

Narayanan

2016

Innov. Infrastruct. Solut.

View full text Add to dashboard Cite

Soil-structure interaction plays an important role in the behavior of structure under static or dynamic loading. It influences the behavior of soil, as well as the response of pile under loading. The analysis is highly essential for predicting a more accurate structural behavior so as to improve the safety of structures under extreme loading conditions. The soil-pile system behavior is predominantly nonlinear and this makes the problem complicated. In a laterally loaded pile the load is resisted by the soil-pile interaction effect, which in turn depends on soil properties, pile material, pile diameter, loading type and bed slope of ground. The difficulty in the accountability of the influencing factors necessitates a careful study on soil-structure interaction problem. The analysis became easier with the debut of powerful computers and simulation tools such as finite element analysis software. A detailed literature review on soil-structure interaction analysis of laterally loaded piles is presented in this paper.

show abstract

“…This trade-off observed in dynamic soil-pile tests can be simulated by considering nonlinear path-dependency of soil, steel and reinforced concrete,Saleh, A. (2015) [8] [9] concluded that "The effect of the ratio of Young's modulus of soil to undrained shear strength of clay Es/su was shown to have a significant influence on the boundary effect" R. Ayothiraman & A. Boominathan [10] concluded that "Consistency of clay and pile length significantly influences the natural frequency of the soil-pile system. Though the natural frequency substantially increases with pile length and shear modulus of clay at low magnitude of dynamic load"…”

Section: Introductionmentioning

confidence: 99%

Behaviour of Piles Subjected to Lateral Forces in Cohesive Soil

Mahmoud

Radwan

Anwar

2021

Engineering Research Journal

View full text Add to dashboard Cite

Although piles are elements designed primarily to support vertical loads, They are subjected to horizontal loads by serval sources such as earthquake, wind, impact loads and lateral earth pressure. Large number of studies have been carried out to investigate the effect of different parameters on the behavior of piles. These parameters are summarized as i) effect of pile diameter, ii) angle of the pile with the vertical, iii) piles slenderness ratio and soil type. In the present study an experimental program was carried out to identify the deflection of vertical and inclined piles subjected to a lateral force in cohesive soil. The experimental program comprised pile lateral load tests performed on model of single pile driven in cohesive soil. Using the experimental model results, relations were utilized to estimate the lateral deflection of piles.

show abstract

Depth of Fixity of Piles in Clay Under Dynamic Lateral Load

Cited by 12 publications

References 34 publications

Experimental Study on Deformation and Load Transfer Mechanisms of Symmetrical Batter Piles under Vertical Loading

Experimental Study on Deformation and Load Transfer Mechanisms of Symmetrical Batter Piles under Vertical Loading

A review on soil–structure interaction analysis of laterally loaded piles

Behaviour of Piles Subjected to Lateral Forces in Cohesive Soil

Contact Info

Product

Resources

About