Numerical stability analysis of piled embankments reinforced with ground beams

Ma, Hongfei; Luo, Qiang; Wang, Tengfei; Jiang, Hao; Lu, Qingyuan

doi:10.1016/j.trgeo.2020.100427

Cited by 24 publications

(5 citation statements)

References 25 publications

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“…The addition of bamboo piles, combined with a reduction in pile spacing, should increase the amount of load carried by piles. In addition, bamboo mattress performs as a beam that works in synergy with bamboo piles to reduce lateral movement of the pile group and embankment system [34]. The bending moment applied to the pile should be reduced and equalized, implying an increase in the vertical load distributed to piles.…”

Section: Discussionmentioning

confidence: 99%

Load Sharing Mechanism of Bamboo Pile Mattress for Reinforced Embankment

Ma’ruf¹

2023

GEOMATE

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In Indonesia, bamboo pile mattress is commonly utilized for reinforced embankments over deep soft soil, especially for shallow ground water table or even over the ground surface as the water functions as timeless preservation for the bamboo. However hardly any articles have been published for design references. This work intends to evaluate bamboo pile mattress for embankment reinforcement numerically by means of Plaxis 2D. A parametric analysis was conducted to assess the effect of both piles spacing s and length L on embankment settlement, stability, and pile load ratio αp. A ratio s/L is introduced to evaluate the combination of s and L effects. Furthermore, normalized settlement S/S∞ and normalized factor of safety SF/SF∞ are proposed to facilitate the assessment, in which S∞ and SF∞ are ones at s/L = ∞ (bamboo mattress with no pile condition). The results show that S/S∞ increases with increasing s/L. Inversely, SF/SF∞ and αp decrease with decreasing s/L. When s and L are increased independently, S/S∞ and SF/SF∞ curves initially follow different paths. When s/L > 0.1 the curves merge into a line. Meanwhile, αp curves blend into a line and separate with a different slope when s/L > 0.1. s/L = 0.1 becomes an onset point to show that L provides more significant effects than s for S/S∞ and SF/SF∞ at s/L < 0.1. However, L produces less influence on αp than s at s/L > 0.1. Furthermore, the findings may provide insight and direction for reinforced embankment design using bamboo pile mattress.

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Section: Discussionmentioning

confidence: 99%

Load Sharing Mechanism of Bamboo Pile Mattress for Reinforced Embankment

Ma’ruf¹

2023

GEOMATE

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“…Recently, several researchers have focused on the vertical stress distribution on pilesupported embankments; however, few have studied the distribution of the horizontal stress or bending moment. For this case, Zheng and Ma [66,67] set up a separate numerical simulation model and found that the bending moment was at its maximum at the clay-sand interface and that it decreased sharply near the sand. However, the results were derived for the end-bearing pile embankment case, and the bending moment distribution in the floating pile embankment should be further investigated.…”

Section: Settlementmentioning

confidence: 99%

The Soil-Arching Effect in Pile-Supported Embankments: A Review

Wang,

Ye,

Wang

et al. 2024

Buildings

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Pile-supported embankments are widely used in foundation treatments, owing to their safety, efficient construction, and economy. The soil-arching effect is a key load-transferring mechanism in a pile-supported embankment, and it reduces the even settlement on the embankment surface. In recent years, researchers and engineers have conducted extensive research on the soil-arching phenomenon in pile-supported embankments. This paper reviews relevant studies on the effect of soil arching in pile-supported embankments in order to better understand the mechanism and influencing factors of the distribution of the arching effect. First, the development history of the practice and theory related to pile-supported embankments is discussed. This is followed by a review of theoretical studies on the soil-arching effect, load distribution and soil deformation on pile-supported embankments (with and without geogrid reinforcement), and structures and factors influencing soil arching. The results of these studies are summarized, and finally, topics for future research are suggested, providing references for the design and maintenance of civil infrastructure.

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“…Each section of the modeling framework is validated separately. The finite element method is employed to obtain the deterministic post-construction settlements of basal reinforced piled embankments (Ma et al, 2021). Further, the hydromechanical model is Fig.…”

Section: Case Studymentioning

confidence: 99%