A simplified method to consider the pile of insufficient length to obtain the support from bearing stratum

Hyodo, Junichi; Tamari, Yukio; Sone, Akito; Ozutsumi, Osamu; Ichii, Koji

doi:10.1080/13467581.2020.1764847

Cited by 6 publications

(2 citation statements)

References 14 publications

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“…where Q ps and Q pg are the axial load capacity of the pile group near a sloping ground and ground surface, respectively, at a settlement equivalent to 10% of pile diameter which is often regarded as the bearing capacity of pile [38,42]. of pile group decreases with the increase of slope inclination for a given edge distance.…”

Section: Effect Of Slope Angle and Edge Distancementioning

confidence: 99%

Experimental Study of Axially Loaded Pile Group Near a Sloping Ground

Alinejad

Bayat²,

Nadi³

et al. 2023

Period. Polytech. Civil Eng.

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Understanding the axial loading response of pile group located near the crest of the slope is of practical value to structural design. In this paper, a large-scale test setup (1.8 m × 0.90 m × 0.90 m) has been developed to investigate the response of pile group (2 × 2) located near the crest of the slope under axial loading. This paper presents a series of physical modelling tests performed to investigate the effects of slope angles, distance of the pile group from the slope crest, embedment length of the pile group and pile diameter on the axial loading response of pile groups. The results show that the response of pile group located near the crest of the slope approaches to the level ground condition with increasing edge distance from slope crest. In addition, the horizontal displacement of pile group towards the slope face increases with decreasing distance of pile group from the slope crest or embedded length of piles or with increasing slope angle. Furthermore, increasing pile diameter results in a low increase in the horizontal displacement for edge distances less than 3 dp (dp = pile diameter). However, the horizontal displacement is almost independent of pile diameter at edge distances greater than 3 dp. Higher embedded length results in the response of pile group approaches to the response of pile group located on the level ground at a shorter edge distance from the slope crest.

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Section: Effect Of Slope Angle and Edge Distancementioning

confidence: 99%

Experimental Study of Axially Loaded Pile Group Near a Sloping Ground

Alinejad

Bayat²,

Nadi³

et al. 2023

Period. Polytech. Civil Eng.

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“…The impact of the embedded depth on the supporting structure of the foundation pit is particularly significant and is extremely sensitive for influencing factors as displacement and settlement. Hyodo et al [13] performed a three-dimensional analysis of the inadequate length of the soldier piles and obtained the relationship between load and settlement for the inadequate embedded depth of the soldier piles. Cui and Li [14] discussed the effects of the soldier pile insertion ratio and stiffness on the mechanical properties of the diaphragm wall using the method of field monitoring and numerical simulation correlation verification by using the deepest foundation pit project in Hainan Province as an example.…”

Section: Introductionmentioning

confidence: 99%

Determination of Embedded Depth of Soldier Piles in Pile-Anchor Supporting System in Granite Residual Soil Area

et al. 2021

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Reasonable depth of pile embedment is one of the key factors for the success of deep foundation pit projects. This paper has taken a deep foundation pit project in a granite residual soil area in Shenzhen as an example and used physical model tests to study the deformation law of the piles and the surrounding soil during the excavation of the deep foundation pit, revealing the variation law of earth pressure in time and space in the pit and then verified it by numerical simulation. The influence of the embedded depth of the pile on the deformation and earth pressure of the deep foundation pit is then explicitly discussed. The study shows that the embedded depth has a significant effect on the deformation and earth pressure distribution of the foundation pit. The earth pressure in front of the pile tends to approach the passive earth pressure as the embedment depth decreases, while the earth pressure behind the pile is in between the Rankine active earth pressure and the static soil pressure; the settlement value and settlement range of the surrounding soil are doubled. The pile displacement increases as the maximum displacement point rises. The maximum displacement of the pile body was used as the basis for determining the instability of the foundation pit. The optimum embedded depth is obtained when the depth of embedment of the pile is 0.22 H (H is the excavation depth of the foundation pit).

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