Bearing Capacity of Uplift Piles with End Gates

Al-Suhaily, Ahmed Shamel; Abood, Ahmed S.; Fattah, Mohammed Y.

doi:10.1007/978-3-319-97115-5_3

Cited by 11 publications

(7 citation statements)

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“…The sand saturation is dry sand, and sand of different densities was used to study the influence of density on the sand deformation and failure mechanism around a screw plate anchor. These include loose sand (average dry density ρ d = 1:47 g/cm 3 , corresponding to a relative density of D r = 27%), medium sand (ρ d = 1:53 g/cm 3 , D r = 55%), and dense sand (ρ d = 1:61 g/cm 3 , D r = 75%). The angles of friction corresponding to the loose, medium, and dense sand conditions were 30.3 °, 33.1 °, and 37.1 °, respectively.…”

Section: Starting Materialmentioning

confidence: 99%

“…Extensive research has been conducted to constrain the pullout bearing capacity of plate anchors using a variety of research methods, including theoretical studies [2][3][4][5], numerical simulations [6][7][8][9][10][11][12][13], and model texts [14][15][16], most of which are summarized in Das et al [17] and Niroumand and Kasim [18]. The lateral bearing capacity and lateral tensile mechanism of laterally loaded plate anchors are jointly affected by the anchor and anchor rod, and the anchor-soil interactions are complicated.…”

Section: Introductionmentioning

confidence: 99%

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Deformation Characteristics of Sandy Soil around a Plate Anchor under Lateral Loading

et al. 2022

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The lateral loading of a plate anchor is a complicated process that involves complex anchor-soil interactions. The deformation characteristics of the soil around an anchor have an important effect on its lateral bearing capacity. In this paper, the noncontact digital image correlation (DIC) technique is used to study the distribution and variation of the soil deformation field under a laterally loaded anchor in sandy soil. The results show that the sand density and embedment ratio significantly affect the distribution and influence range of the active and passive zones around the anchor. The active zone behind the rod gradually decreases with increasing sand density until ultimately disappearing, and the passive zone increases. The maximum influence height occurs in the passive zone behind the rod in dense sand, and the influence range of the passive zone in front of the rod expands with an increasing embedment ratio. Shear bands form during the lateral loading process, which are accompanied by dilatancy in the shear process. The motion path of the rotation center in loose and medium sand is initially rigid translational and then becomes rigid rotational, while the opposite trend occurs in compact dense sand. The results provide important guidance for the development of predictive models for anchor lateral loading and design.

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Section: Starting Materialmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Deformation Characteristics of Sandy Soil around a Plate Anchor under Lateral Loading

et al. 2022

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“…Recently, theoretical and experimental investigations have been conducted on a single, leading to comprehensive research results [6,7]. However, little research has been done on NT-CEP pile groups by engineering practices [8][9][10][11][12]. In this study, the bearing capacity of the NT-CEP pile group and the failure state of the soil around the pile were studied theoretically.…”

Section: Introductionmentioning

confidence: 99%

Influence of Plate Position on Uplift Failure State and Bearing Capacity of NT-CEP Pile Groups

Qian,

Chen,

Sun

et al. 2024

Advances in Civil Engineering

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The previous research results of the research group demonstrated that the plate position is the main factor affecting the uplift bearing capacity of the new type of concrete expanded plate pile (NT-CEP pile) group and the failure state of the soil around the pile. In this study, the visual half-section pile small-scale model of undisturbed soil tension test and ANSYS Finite Element Software comparative analysis two-pile small-scale test model and two-, four-, six-, and nine-pile models, which included the corner, side, and middle piles, were developed. The effect of the plate position on the displacement, stress, and bearing mechanism of the NT-CEP pile group under vertical tension was determined, which further improved the design concept of the NT-CEP pile group and provided strong theoretical support for its widespread application.

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“…Tis study takes CEP double pile as the research object, the pile spacing as a single variable, and ANSYS fnite element software is used to establish six groups of semisectional double pile models with diferent pile spacings and one group of semisectional single pile models with the same specifcations [10]. Te displacement and stress change law of the CEP double pile and soil body under the action of vertical pressure is obtained through collated analysis, and the damage state and bearing capacity [12][13][14] change trend of the soil body around the pile of CEP double pile are derived. Teir similarities and diferences are also determined by comparing them with the monopile model [15].…”

Section: Introductionmentioning

confidence: 99%

Simulation Analysis of the Effect of Pile Spacing on the Compressive Load-Bearing Performance of CEP Double Piles

Qian

et al. 2023

Advances in Civil Engineering

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Under the action of vertical pressure, the variation of pile spacing affects the bearing performance of concrete expanded-plate (CEP) double pile and the damaged state of soil around the pile. In this study, finite element simulation analysis is performed by ANSYS software, and six sets of semisectional double pile models with different pile spacings and one set of semisectional monopile models with the same specifications are established after applying the vertical pressure to the model pile. The mapping method is used for the pile-soil model meshing, the model adopts the contact type of rigid and flexible bodies, and the simulation analysis adopts the way of applying surface load and loading step-by-step. The displacement distribution, load-displacement curve, stress cloud, and shear stress curve are collated to obtain the displacement and stress change law of pile-soil under different pile spacings and then determine the effect of the changes in pile spacing on the CEP double pile. Meanwhile, the CEP double pile model is compared with the monopile model to determine their similarities and differences. Finally, a reasonable range of pile spacing for CEP double piles is provided. It further improves the research theory of CEP group pile compressive load-bearing capacity and provides the theoretical basis for its design and application in practical engineering.

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Bearing Capacity of Uplift Piles with End Gates

Cited by 11 publications

References 0 publications

Deformation Characteristics of Sandy Soil around a Plate Anchor under Lateral Loading

Deformation Characteristics of Sandy Soil around a Plate Anchor under Lateral Loading

Influence of Plate Position on Uplift Failure State and Bearing Capacity of NT-CEP Pile Groups

Simulation Analysis of the Effect of Pile Spacing on the Compressive Load-Bearing Performance of CEP Double Piles

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