Applicability of the generalized scaling law to a pile-inclined ground system subject to liquefaction-induced lateral spreading

Ueda, Kyohei; Sawada, Kaito; Wada, Toma; Tobita, Tetsuo; Iai, Susumu

doi:10.1016/j.sandf.2019.05.005

Cited by 19 publications

(2 citation statements)

References 17 publications

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“…However, Gerolymos et al (2008) and Capatti et al (2020) found both the beneficial and detrimental effects of inclined piles subjected to liquefaction-induced lateral displacement but these are not detailed or mechanistically justified. In addition to the physical model tests on SPSQ systems, a number of experimental model tests have also been performed on the influence of liquefaction-induced lateral displacement on the soil-pile system in the past two decades (Abdoun et al, 2002;Boulanger et al, 2003;Brandenberg et al, 2005;Madabhushi, 2008, 2012;Haeri et al, 2012;Ebeido et al, 2018Ebeido et al, , 2019Ueda et al, 2019;Zhang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Response of soil–pile–superstructure–quay wall system to lateral displacement under horizontal and vertical earthquake excitations

Chen

Cai

et al. 2022

Bull Earthquake Eng

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The excess pore water pressure (EPWP) generated under the combined vertical and horizontal earthquake excitations is generally greater than that under the unidirectional excitation, which may further affect the dynamic response of soil-pile-superstructure-quay wall (SPSQ) system. This study conducted a coupled effective-stress analysis for the response of SPSQ system to liquefaction-induced lateral displacement under horizontal and vertical earthquake excitations. To accurately describe the lateral displacement behind the quay wall, the liquefaction behavior of soils was described by a modified generalized plasticity model with parameters properly determined from laboratory tests. The numerical model of the SPSQ system was validated against the previously reported centrifuge model tests. The results show that the earthquake excitation with abundant low-frequency component causes greater residual lateral displacements of footing (ux,RF) and quay wall (ux,RQ ) than that with abundant high-frequency component. The ux,RF and ux,RQ tend to increase as the peak vertical acceleration increases for both vertical and inclined piles. Increasing the fixity of the quay wall significantly reduces the influence of vertical ground motion on the ux,RF and ux,RQ. The polarity reversal of the vertical ground motion also has a significant effect on the ux,RF and ux,RQ and should be considered in the analyses. In addition, the lateral displacement of liquefied ground causes an amount of rotation of the cap of the inclined pile, probably leading to the potential shear failure at the head of piles.

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Section: Introductionmentioning

confidence: 99%

Response of soil–pile–superstructure–quay wall system to lateral displacement under horizontal and vertical earthquake excitations

Chen

Cai

et al. 2022

Bull Earthquake Eng

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“…In the centrifugal model test of Rotta et al (Rotta Loria et al, 2015), ten strain gauges were attached to each of the three energy piles in order to obtain the energy of thermomechanical loads that the piles were subjected to in saturated sand. Ueda et al (2019) researched a pile model which they embedded in an inclined ground and subjected to liquefactioninduced lateral spreading using four different centrifugal accelerations from 13 to 50 g, and six pore water pressure transducers, six accelerometers, twelve strain gauges, four laser-displace sensors, and one thermocouple were obtained. The research of Wang et al (2019) and Yang et al (2019) were about the performance and load-bearing characteristics of the single friction wheel foundation of offshore wind turbines under lateral moment loads and the vertical performance in the sand, and only one LVDT was used in their tests.…”

Section: Introductionmentioning

confidence: 99%

Research on Application of Multi-Channel Selector in Centrifugal Model Test of Anchoring Slope by Frame Beam

et al. 2021

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An anchoring frame beam is a very common form of support for reinforced slopes, especially in alpine regions. Centrifugal tests have proved to be an intuitive and effective means of investigating the mechanism of action of frame beams. However, the data acquisition system of the geotechnical centrifuge in service has the problem of a small number of acquisition channels. A multi-channel selector based on the existing acquisition system was proposed, designed, processed, and manufactured, and it was debugged, tested, and applied in a no-load centrifugal test, static pressure model test, and centrifugal model test. The results show that the acquisition mode of the multi-channel selector connected with a maximum of 288 sensors has been changed from “one-to-one” to “one-to-many”. Its influence on various sensor signals is negligible. The multi-channel selector can work normally, which communicates and feeds back with the remote controller in the 1–120 g no-load centrifugal test. In the static load model test, 162 sensor signals were well collected through it. And only 51 channels were used to effectively obtain the signals of 187 sensors in a 70 g centrifugal model test of an anchoring slope with a frame beam. The multi-channel selector can be successfully applied in different use environments, saving time and reducing the cost of obtaining a single set of data.

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Similitude Characteristics Between Small-Scale Model and Full-Scale Piles Under Dynamic Excitations

Choudhary

Biswas

Manna

2023

Lecture Notes in Civil Engineering

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Applicability of the generalized scaling law to a pile-inclined ground system subject to liquefaction-induced lateral spreading

Cited by 19 publications

References 17 publications

Response of soil–pile–superstructure–quay wall system to lateral displacement under horizontal and vertical earthquake excitations

Response of soil–pile–superstructure–quay wall system to lateral displacement under horizontal and vertical earthquake excitations

Research on Application of Multi-Channel Selector in Centrifugal Model Test of Anchoring Slope by Frame Beam

Similitude Characteristics Between Small-Scale Model and Full-Scale Piles Under Dynamic Excitations

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