The performance of the dynamically installed plate anchor in sand and silt

Han, Congcong; Tong, Yuming; Li, Jun

doi:10.1016/j.oceaneng.2022.113274

Cited by 3 publications

(4 citation statements)

References 24 publications

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“…For CEL method, the soil is modeled as an Eulerian material and the mesh distortion can be effectively avoided by allowing the soil to flow through the fixed eulerian mesh. The reliability of CEL method in the analysis of large deformation problem has been verified in a mass of researches on different types of geotechnical problems, such as pile penetration (Tho et al, 2012;Zhou et al, 2019;Zhao et al, 2023), plate anchor penetration (Hossain et al, 2013;Su et al, 2016;Han et al, 2023), pipeline penetration (Shi et al, 2011;Dutta et al, 2015;Jia et al, 2020) and spudcan penetration (Zheng et al, 2013;Hu et al, 2014;Khoa et al, 2025).…”

Section: Overviewmentioning

confidence: 96%

Study on Pile-End Resistance of Static Pile with Different Cone Apex Angle in Clay

Zhang,

Huang,

Shen

et al. 2024

Preprint

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Static pile ended with cone apex angle is widely used in practical engineering. However, the corresponding penetration resistance is still impossible to be predicted accurately. To address this, the penetration process of static pile is simulated by using the coupled Eulerian-Lagrangian (CEL) method in this study. During the penetration process of static pile in clay, the effect of cone apex angle and soil rigidity index on pile-end resistance and the distribution of the plastic zone of the soil around the pile-end are analyzed. The corresponding results indicate that the pile-end resistance is positively correlated with the size of cone apex angle and soil rigidity index, and the pile-end resistance rises with the increase of penetration depth until reaching a certain depth. Besides, the expansion process of the plastic zone near the pile-end is characterized by the expansion of spherical cavity. Since the position of expansion cavity center is different from the traditional theory, the corresponding radius in the traditional theory of cavity expansion is modified according to the corresponding numerical results. Finally, a semi-empirical method, in which the effect of cone apex angle and the soil rigidity index are considered, is proposed to predict the ultimate pile-end resistance of static pile.

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Section: Overviewmentioning

confidence: 96%

Study on Pile-End Resistance of Static Pile with Different Cone Apex Angle in Clay

Zhang,

Huang,

Shen

et al. 2024

Preprint

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“…Based on OpenFOAM, static and dynamic model analysis methods were introduced to establish a 3D water flow impact model and a 3D numerical model, respectively, to simulate the underwater free-fall process of the anchors (figure 1). Referring to Zhang et al (2023) [15], the length, width, and height of the computational domain were set to 30D, 30D, and 9L, where D and L are the diameter and length of the torpedo anchor, respectively. When the liquid volume fraction alpha.water in the color bar is 1 and 0, it represents water and air, respectively, and alpha.water between 1 and 0 represents the gas-liquid interface.…”

Section: Model Setupmentioning

confidence: 99%

“…, where M and M0 are the moments acting on the anchor gravity center and anchor tip, respectively. A mesh convergence test and model validation of a torpedo anchor falling in water were completed in [4]. Considering the accuracy of the calculation results and the efficiency of computation, the background mesh size was set as D/5 (for the fish anchor, it is Ds/5, where Ds is the length of the short axis of the largest elliptical cross-sections, Ds = 1.2 m) to discretize the computational domain, and the meshes near the surface of the torpedo anchor and the fish anchor were three-level refined (i.e., the mesh size was D/40 and Ds/40, respectively).…”

Section: Model Setupmentioning

confidence: 99%

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Hydrodynamic and bearing behaviors of two typical deepwater dynamically installed anchors: torpedo anchor and fish anchor

Zhang,

Fu,

Zhang

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Dynamically installed anchors, such as torpedo and fish anchors, are innovative and cost-effective anchorage foundations. In this study, the advantages and disadvantages of these two types of dynamically installed anchors are discussed by comparing the hydrodynamic and bearing characteristics of torpedo and fish anchors commonly used in practical engineering. First, based on OpenFOAM, 3D numerical models were established to investigate the directional stability and simulate the underwater free-fall process of anchors using static and dynamic model analysis methods. Using the validated model, the hydrodynamic performances (i.e., inclination angle, installation offset distance, penetration velocity, and drag coefficient) of torpedo and fish anchors were explored and compared. Based on these findings, the installation height of each anchor was recommended. Finally, the bearing performances of the torpedo and fish anchors were investigated using ABAQUS, and the selection principles of these two types of dynamically installed anchors were presented based on their hydrodynamic and bearing behaviors.

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Effects of strain rate and softening on the cone-tip resistance of CPT in soft clay

Huang,

Yang,

Zhang

et al. 2024

Marine Georesources & Geotechnology

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The performance of the dynamically installed plate anchor in sand and silt

Cited by 3 publications

References 24 publications

Study on Pile-End Resistance of Static Pile with Different Cone Apex Angle in Clay

Study on Pile-End Resistance of Static Pile with Different Cone Apex Angle in Clay

Hydrodynamic and bearing behaviors of two typical deepwater dynamically installed anchors: torpedo anchor and fish anchor

Effects of strain rate and softening on the cone-tip resistance of CPT in soft clay

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