Theoretical Analysis of the Influence of a Sectional Form of a Flexible NT-CEP Pile Disc on the Anti-tilting Loading Performance

Qian, Yongmei; Yang, Yang; Hong, Guang; Tian, Wei; Song, Yuchen

doi:10.1007/s12205-022-2234-3

Cited by 2 publications

(1 citation statement)

References 17 publications

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“…The establishment process of the CEP double-pile finite element model is basically the same as that of the CEP single-pile finite element model [23,24], except that the soil model is changed from a cylinder to a cube compared to a single pile. The soil model is built from bottom to top, with the length, width, and height of 12,000, 10,000, and 8000 mm, respectively.…”

Section: Establishment Of Finite Element Modelmentioning

confidence: 99%

Theoretical Analysis of the Influence of Bearing Plate Position on the Bearing Performance of Soil around the CEP Antipull Force Double Pile

Qian,

Sun,

et al. 2023

Buildings

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With the development of large-scale projects such as high-rise buildings, deep-sea platforms, bridges, etc., these construction facilities are affected by many factors such as environment and geological conditions, which put forward higher requirements for pile-bearing capacity. Compared with the straight-hole grouted piles, the CEP (concrete expanded-plate) piles have an increased bearing plate, which has stronger resistance to pullout under the action of axial tension. The location of the bearing plate is the main factor affecting the bearing capacity of a CEP pile. This study simulates and analyzes CEP double piles on ANSYS software (Ansys R19.0 versions) under ideal conditions, designs five types of model piles with different bearing plate positions, and divides them into six groups for simulation. Finally, a complete model of the two-pile system is established. It is obtained that when the bearing plate is in the same position, the longer the pile length above the bearing plate, the greater the ultimate bearing capacity of the CEP double piles; when the bearing plates of a double pile are at different positions, the antipull-force-bearing capacity of the double pile mainly depends on the pile with a smaller pile length above the bearing plate, and determines the calculation mode of a CEP double-pile antipull-force-bearing capacity at different bearing plate positions, so as to provide a theoretical basis for the design and application of CEP pile foundations in large building structures in the future.

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Section: Establishment Of Finite Element Modelmentioning

confidence: 99%