Lateral Bearing Performance of a Defective Pile-Supported Wharf with Batter Piles

Zou, Yanfei; Sun, Xiuquan; Yang, Z. X.; Fu, Dengfeng

doi:10.1061/(asce)ww.1943-5460.0000597

Cited by 6 publications

(3 citation statements)

References 33 publications

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“…where I 1 is the first stress tensor invariant, and I 2 is the second stress tensor invariant. a and k are constants related to the cohesion and the internal friction angle of the geotechnical material, which can be expressed as Equations ( 4) and (5).…”

Section: Numerical Models For Piled Wharfmentioning

confidence: 99%

“…Piled wharf structures have been widely used in port projects for their simplified structure, light wave reflection, stable berthing conditions, and many other advantages. The seismic performance and stability of a wharf structure are significantly affected by a variety of factors, such as the wharf structure and the surrounding soil under seismic action [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Parameter Sensitivity Analysis of the Seismic Response of a Piled Wharf Structure

et al. 2023

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To investigate the seismic response characteristics of piled wharf structures, a numerical model of the soil-structure interaction system is established. Extensive fiducial error and grey correlation analyses are also conducted to obtain the grey correlation degree sequence of the internal force of piled wharf structure and deformation, as well as the acceleration of surrounding soils. The results show that the peak acceleration at the typical point of the soil is more sensitive to the variations in friction angle and ground motion intensity, while the lateral extreme displacement is the most sensitive to the variations in the elastic modulus of the soil. The grey correlation sequences of the peak acceleration and lateral extreme displacement at the feature points of the soil around the pile greatly vary, indicating that the key factors of the different sequences control the target parameters corresponding to them. The sensitivity of the internal force of the pile foundation of the pier structure to the ground motion intensity and friction angle is more sensitive than the elastic modulus and cohesion. This presented parameter sensitivity analysis procedure for the seismic response of piled wharf structures can provide a reference for the seismic design of piled wharf structures, as well as for disaster prevention prediction.

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Section: Numerical Models For Piled Wharfmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Parameter Sensitivity Analysis of the Seismic Response of a Piled Wharf Structure

et al. 2023

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“…Poulos et al [18] systematically analyzed the influences of geological defects and pile defects on the bearing performance of pile foundation according to accidents caused by pile defects in engineering. Yan et al [19] used a centrifugal model to study the lateral bearing performance of a wharf supported by defective pile on a slope and used numerical simulation to analyze the failure mode, horizontal behavior, bending displacement and bending moment of defective pile. Nadeem et al [20] regarded the bending of pile as a quality defect.…”

Section: Introductionmentioning

confidence: 99%

Behavior Investigation of Necking Pile with Caps Assisted with Transparent Soil Technology

et al. 2022

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Pile easily develops necking defects during construction, which can limit the exertion of shaft resistance, resulting in reducing ultimate bearing capacity and creating potential safety hazards to projects. Based on transparent soil technology, this paper took the necking located in the middle part of pile shafts as an example and carried out vertical loading experiments on one intact pile and nine necking piles with caps. Then, the influences of necking length and diameter on the vertical bearing capacity were studied. The speckle field of the soil around piles was processed using the MatPIV program to investigate soil displacement. Through comparison and analysis with the intact pile, the reasons for the reduction in bearing capacity were obtained. The results show that the bearing capacity of the piles is seriously damaged by the necking. When the necking diameter is 4 mm and the necking length is 20 mm, the loss of vertical bearing capacity was 26.6%. The vertical bearing capacity decreases with the increase in necking length or the decrease in necking diameter. Pile necking makes a significant contribution to the displacement of soil around the cap. Inclined downward displacement of soil occurs near necking, which reduces the relative displacement between pile and soil and leads to the loss of pile resistance. For the necking with a large size, the soil displacement at the necking and around the pile cap is connected, which causes the displacement range of the soil under the pile cap to increase, resulting in a weakening of the exertion of shaft resistance. Subsequently, the vertical bearing capacity of piles is reduced.

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Centrifuge tests on lateral bearing behaviors of double steel sheet pile structures on marine soft grounds

Zou

Zhang

Xiao

et al. 2023

Applied Ocean Research

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Lateral Bearing Performance of a Defective Pile-Supported Wharf with Batter Piles

Cited by 6 publications

References 33 publications

Parameter Sensitivity Analysis of the Seismic Response of a Piled Wharf Structure

Parameter Sensitivity Analysis of the Seismic Response of a Piled Wharf Structure

Behavior Investigation of Necking Pile with Caps Assisted with Transparent Soil Technology

Centrifuge tests on lateral bearing behaviors of double steel sheet pile structures on marine soft grounds

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