Effect of Cracking on the Response of Pile Test under Horizontal Loading

Comodromos, Emilios M.; Papadopoulou, Mello C.; Rentzeperis, Ioannis K.

doi:10.1061/(asce)gt.1943-5606.0000069

Cited by 36 publications

(15 citation statements)

References 8 publications

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“…Table 2 shows the values of the soil parameters (c is the unit weight of the soil) derived from the available results of the tests performed by Comodromos et al [19,20]. These values differ from those presented in the original papers by Comodromos et al [19,20] essentially for the value of G assigned to the upper two layers. In addition, it is assumed that v 0 = 0.3 (for the cohesionless soils) and v u = 0.495 (for the purely cohesive soils).…”

Section: Analysis Of Field Load Testsmentioning

confidence: 92%

“…13), the strains are calculated in the present study at this depth. As discussed by Comodromos et al [20], the high increase in the tensile strain at large displacements should be ascribed to the occurrence of concrete cracking in the pile cross-section considered. Lastly, Fig.…”

Section: Analysis Of Field Load Testsmentioning

confidence: 96%

“…The experimental results from these tests are compared with those obtained numerically with the objective of validating the material parameters required by the constitutive models and assessing the reliability of the numerical approach adopted. The tests described in Comodromos et al [19,20] are suitable for this purpose. These tests were performed to optimise the design of the pile foundation planned for the construction of an important bridge located near the city of Thessaloniki in northern Greek.…”

Section: Analysis Of Field Load Testsmentioning

confidence: 99%

“…11 were measured by the fibre-optic sensors SA-2 (tensile side) and SB-2 (compression side). Considering that these strains were associated by Comodromos et al [20] at a depth of approximately 3 m from the ground surface (see their Fig. 13), the strains are calculated in the present study at this depth.…”

Section: Analysis Of Field Load Testsmentioning

confidence: 99%

“…The base of the mesh is fully fixed and the lateral boundaries are constrained by vertical rollers. An initial stress state under isotropic conditions is [19,20]. imposed in the soil domain.…”

Section: Analysis Of Field Load Testsmentioning

confidence: 99%

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Behaviour of flexible piles subjected to inclined loads

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Section: Analysis Of Field Load Testsmentioning

confidence: 92%

Section: Analysis Of Field Load Testsmentioning

confidence: 96%

Section: Analysis Of Field Load Testsmentioning

confidence: 99%

Section: Analysis Of Field Load Testsmentioning

confidence: 99%

Section: Analysis Of Field Load Testsmentioning

confidence: 99%

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Behaviour of flexible piles subjected to inclined loads

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Multiobjective optimization‐based design of stabilizing piles in earth slopes

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Wang

et al. 2019

Num Anal Meth Geomechanics

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Summary Though the technology of using stabilizing piles to prevent landsliding is not new, the design of such piles with a meaningful optimization framework has been rarely reported. In this paper, a multiobjective optimization‐based framework for design of stabilizing piles is presented, in which both reinforcement effectiveness and cost efficiency could be explicitly considered. The design parameters considered in the proposed design framework are the pile parameters, including pile diameter, spacing, length, and position, and the design objectives considered are the reinforcement effectiveness and cost efficiency. The design of stabilizing piles is then implemented as a multiobjective optimization problem. In that the desire to maximize the reinforcement effectiveness and that to maximize the cost efficiency are two conflicting objectives, the output of this multiobjective optimization will be a Pareto front that depicts a trade‐off between these two design objectives. With the obtained Pareto front, an informed decision regarding the design of stabilizing piles is reached. The effectiveness and significance of the proposed multiobjective optimization‐based design framework for stabilizing piles are demonstrated through two illustrative examples: one is the design of stabilizing piles in a one‐layer earth slope and the other the design of stabilizing piles in a two‐layer earth slope. Further, parametric analyses are conducted to investigate the influences of the pile design parameters on the stability of reinforced slopes.

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A calculation method for the embedded depth of stabilizing piles in reinforced slopes

Yan

Xiao

2020

Num Anal Meth Geomechanics

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Summary Embedded stabilizing piles are a significant optimization measure for traditional piles used to reinforce slopes or landslides. The determination of the embedded depth of the pile top is essential for engineering design. On the basis of the potential overtop‐sliding failure mechanism for a piled slope, the corresponding overall slip surface is assumed to consist of the upper part from the original slip surface of the landslide, and the lower part occurs in the local slide mass upslope of the piles. The imbalanced thrust force method is used to determine the thrust force of the upper slide mass, and a variational calculus method within the framework of limit equilibrium for the lower slide mass is provided to calculate its limit resistance. According to the equilibrium relationship between the thrust force and the limit resistance under a design factor of safety of the piled slope, a closed‐form solution to the piled‐slope stability is specifically derived. It can quantitatively exhibit the influences of some important factors, including the embedded depth on the factor of safety and the corresponding slip surface of the slope. The analysis results of some practical examples show that the factor of safety decreases nonlinearly as the embedded depth increases. The proposed method can be applied in practical engineering.

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Effect of Cracking on the Response of Pile Test under Horizontal Loading

Cited by 36 publications

References 8 publications

Behaviour of flexible piles subjected to inclined loads

Behaviour of flexible piles subjected to inclined loads

Multiobjective optimization‐based design of stabilizing piles in earth slopes

A calculation method for the embedded depth of stabilizing piles in reinforced slopes

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