Dynamic behaviour of model pile in saturated sloping ground during shaking table tests

Chen, C.H.; Ueng, Tzuu‐Huei

doi:10.1201/9780429438646-16

Cited by 2 publications

(2 citation statements)

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“…The wet sedimentation method can prevent the trapping of air, and it was verified as effective to provide a satisfactorily saturated sandy ground specimen with a dimension of 1.88 m × 1.88 m × 1.40 m by Pwave velocity measurement. 23 Besides, our experiences indicate that the initial 𝐷 𝑟 of the specimen ranged from 10% to 20%, showing a limited variability, 12,24,27 and it was about 12% in this study. Based on the descriptions above, the lower part of ground specimen can be considered liquefiable, but it was looser than the general in-situ condition.…”

Section: Preparation Of the Ground Specimenmentioning

confidence: 50%

Full‐scale shaking table tests on soil liquefaction‐induced uplift of buried pipelines for buildings

Tsai

Jheng

2023

Earthq Engng Struct Dyn

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The uplift effect induced by soil liquefaction on buried pipelines that are critical to the serviceability of buildings, including potable water, natural gas, and sewage pipelines, was experimentally investigated. A full‐scale physical model of pipelines buried in liquefiable ground comprising distribution mains and service lines that connect distribution mains and buildings was built. Shaking table tests were conducted on this model with actual earthquake records utilized as the input motions. The performance of gravel as pipe ditch backfill for mitigating the liquefaction‐induced uplift was also evaluated. During the tests, accelerometers and piezometers were installed in free‐field (FF) soil and around the pipelines to reveal the pipeline–soil interaction and the soil liquefaction development. Wire potentiometers were also utilized to monitor any uplift or subsidence of the pipelines. Results indicate that the distribution mains for natural gas and sewage experienced an uplift during liquefaction of ground specimen. The excess porewater pressure buildup level around the uplifted pipelines was generally lower than that in FF soil and was even lower on top of the pipeline circumference, which may be attributed to the pipeline–soil interaction. Furthermore, the practicability of an existing simplified model for anti‐uplift stability assessment and its corresponding uplift force estimation were examined based on aforementioned observations. The findings indicate that the uplift effect for large‐diameter pipelines may be underestimated by simply using this simplified model. This research can be used as a reference for the seismic design of buried pipelines, which is beneficial for disaster prevention and mitigation.

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Section: Preparation Of the Ground Specimenmentioning

confidence: 50%

Full‐scale shaking table tests on soil liquefaction‐induced uplift of buried pipelines for buildings

Tsai

Jheng

2023

Earthq Engng Struct Dyn

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show abstract

“…A number of papers investigate the performance of piles under seismic loading. The experiments consider single piles (Yao et al 2018, Ebeido et al 2018, Chen et al 2018, Pérez-Herreros et al 2018 or small pile groups (Imamura 2018, Egawa et al 2018. One paper (Garala & Madabhushi 2018) considered a comparison between a single pile and a small pile group (containing three piles).…”

Section: Piles Under Seismic Actionmentioning

confidence: 99%

Physical modelling applied to infrastructure development

Goodey¹

2018

Physical Modelling in Geotechnics

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Dynamic behaviour of model pile in saturated sloping ground during shaking table tests

Cited by 2 publications

References 1 publication

Full‐scale shaking table tests on soil liquefaction‐induced uplift of buried pipelines for buildings

Full‐scale shaking table tests on soil liquefaction‐induced uplift of buried pipelines for buildings

Physical modelling applied to infrastructure development

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