Effect of Slope on p-y Curves for Laterally Loaded Piles in Soft Clay

Rathod, Deendayal; Muthukkumaran, Kasinathan; Sitharam, T. G.

doi:10.1007/s10706-017-0405-7

Cited by 36 publications

(10 citation statements)

References 30 publications

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“…Comparing with the pile constructed in the ground, it can be seen that the expression of F su2 for the pile built near-slope crest includes additional two parameters, slope angle θ and the near-slope distance b. It should be noted that previous studies have not considered the influence of slope height h on the bearing capacity of piles [16,19,20,30]. When the slope height h is smaller than the maximum depth of the failure wedge development, it is clear that h will affect the ultimate resistance F su3 , as shown in equation (8).…”

Section: Advances In Civil Engineeringmentioning

confidence: 99%

“…Nimityongskul et al [18,19] reported full-scale test results for piles near a clay slope, which show that the effect of the slope is significantly reduced at a distance of 4 times the pile diameter and fully disappears at 8 times the pile diameter. Rathod et al [20] investigated the effect of slope on p-y curves due to static lateral loading in soft clay and presented a new p-y curve on a basis of the experimental results.…”

Section: Introductionmentioning

confidence: 99%

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A Simplified Calculation Method for the Near‐Slope Laterally Loaded Pile Based on a Passive Wedge Model

Yang

Deng

Wang

2019

Advances in Civil Engineering

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When a pile is placed near the slope, the lateral loading capacity of the pile decreases significantly due to the weakening effect of soil resistance near the slope. As such, a modified soil passive wedge model for near-slope laterally loaded piles is presented to consider the weakening effect in this paper. According to development depth of different wedges, the shapes of soil passive wedge can be classified into three sorts, so as to fully analyze the influence of the slope shape and the distance from the pile center to the slope crest. On this basis, a concept of equivalent depth is proposed considering the differences of laterally loaded piles near the slope and in the horizontal ground. Besides, the unit ultimate soil resistance, which can be obtained along the different depths of pile, is introduced into the p-y curve of the soil, for achieving solution methods of internal force and displacement of laterally loaded piles under the slope weakening effect. The results of laboratory model and field tests on laterally loaded piles are compared with the proposed method, demonstrating its validity and accuracy. Furthermore, the influence of the near-slope distance on the loading capacity of the pile is fully analyzed in detail, indicating the critical near-slope distance is increasing with the increase of the undrained strength, while independent of the slope angle.

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Section: Advances In Civil Engineeringmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Simplified Calculation Method for the Near‐Slope Laterally Loaded Pile Based on a Passive Wedge Model

Yang

Deng

Wang

2019

Advances in Civil Engineering

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“…Rathod et al [17] Scale model experiments New p-y curves for piles located on the crest of soft clay with different sloping ground surfaces under static lateral loading were developed. e effect of sloping angles on proposed p-y curves was studied.…”

Section: Chandaluri Andmentioning

confidence: 99%

“…Such a foundation is typically subjected to both the oblique and vertical loads transferred from its superstructure. e horizontal loads of bridge pile foundations have been explored in many studies including scale model experiments [16][17][18][19] and centrifugal experiments [20,21]. ese works focused on analyzing the p-y curves recorded under horizontal loads and deformation patterns of the pile foundation, and stiffness of the bridge pile.…”

Section: Introductionmentioning

confidence: 99%

Effects of Landslides on the Displacement of a Bridge Pile Group Located on a High and Steep Slope

Zhang

et al. 2021

Advances in Civil Engineering

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Engineering practice shows that the deformation of the slide-resistant pile may be transferred to the adjacent bridge foundation on an inclined slope, which can compromise the safety of the entire bridge. However, this phenomenon has rarely been considered in the past. To reveal the deformation transfer mechanism between the slide-resistant pile and the adjacent structures, a full-scale field test was performed on a high and steep slope located in a section of a certain railway. A numerical analysis model was constructed to simulate the field test and validate its parameters. Moreover, parametric analysis was also conducted to examine the influence of the pile length, pile diameter, and arrangement of the pile foundation. The results show that the bridge pile foundation is simultaneously affected by the “load transfer effect” caused by the slide-resistant pile and “traction effect” of the sliding slope. With the distance between the pile foundation and the slide-resistant pile increasing, the dominant factor affecting the deformation mode of the pile body is switched from the “load transfer effect” to the “traction effect.” Furthermore, a critical embedment depth exists for the bridge pile foundation built on a high and steep slope, which varies at different locations along the inclined stratum. In addition, using a pile arrangement with a larger pile diameter and lower number of piles is more beneficial for controlling the horizontal displacement of the bridge foundation. The results of the research provide a reference for the safety control of the engineering on the high and steep slope.

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“…The effect of slope is negligible when the ground inclination is less than 11.3°( [79,91]) and the influence of slope is neglected below the depth of fixity [92]. The effect of eccentricity in sloping ground is also studied, where reduction in capacity is mainly due to rigidity of the pile which decreases with reduction in depth of embedment [93].…”

Section: Active Pilementioning

confidence: 99%

Single and Group Static Laterally Loaded Vertical Pile in Horizontal and Sloping Ground—A Review

Sivapriya

2021

Lecture Notes in Civil Engineering

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Effect of Slope on p-y Curves for Laterally Loaded Piles in Soft Clay

Cited by 36 publications

References 30 publications

A Simplified Calculation Method for the Near‐Slope Laterally Loaded Pile Based on a Passive Wedge Model

A Simplified Calculation Method for the Near‐Slope Laterally Loaded Pile Based on a Passive Wedge Model

Effects of Landslides on the Displacement of a Bridge Pile Group Located on a High and Steep Slope

Single and Group Static Laterally Loaded Vertical Pile in Horizontal and Sloping Ground—A Review

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