Static Capacity of Closed-Ended Pipe Pile Driven in Gravelly Sand

Ganju, Eshan; Han, Fei; Prezzi, Mônica; Salgado, Rodrigo

doi:10.1061/(asce)gt.1943-5606.0002215

Cited by 16 publications

(6 citation statements)

References 38 publications

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“…The foundations of the bridge’s two end bents and the seven interior piers are closed-ended pipe piles and open-ended pipe piles, respectively. Pier 7 (an interior pier) of the bridge was selected for the live load test because a static load test on instrumented test piles ( 7 – 11 ) had been performed in 2016 close to this pier, providing valuable reference for the understanding of the foundation response to the live load in the present study. In addition, most of the in situ tests (standard penetration tests and cone penetration tests) had been performed close to Pier 7, and the test results can be found in ( 8 , 9 , 11 – 13 ).…”

Section: Instrumentationmentioning

confidence: 99%

Monitoring of the Response of the Sagamore Parkway Bridge and its Foundations During a Live Load Test

Han

Marashi

Prezzi

et al. 2020

Transportation Research Record: Journal of the Transportation R

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In this paper, we report the results of a live load test performed on the Sagamore Parkway bridge over the Wabash River, Indiana. The seven-span concrete bridge was constructed from 2016 to 2018 to replace the old, east-bound bridge. The main goals of the live load test were: (i) to study the transfer of the live loads from the bridge pier to the foundation elements and the distribution of live loads among the individual piles supporting the bridge pier; and (ii) to verify the assumptions (e.g., regarding the pile cap resistance) made in bridge foundation design. For these purposes, one of the interior piers (Pier 7) of the bridge and the fifteen pipe piles supporting it were instrumented with vibrating-wire strain gauges. With the bridge temporarily closed to traffic, the live load test was performed by parking twelve loaded triaxle trucks at specific locations on the bridge deck near Pier 7 in March 2019. The truck loads were applied in seven stages, simulating the driving of several trucks over the bridge pier. The settlement of the pier was measured using a digital level during the live load test. The data from the strain gauge readings were processed to produce the history of load distribution within the cross section of the pier and among the piles in the pile group during the seven stages of the live load test. The soil in contact with the pile cap carried about half of the total live load.

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Section: Instrumentationmentioning

confidence: 99%

Monitoring of the Response of the Sagamore Parkway Bridge and its Foundations During a Live Load Test

Han

Marashi

Prezzi

et al. 2020

Transportation Research Record: Journal of the Transportation R

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“…Accurate determination of the steel-soil interface friction angle is critical for reliable geotechnical design (Ganju et al forthcoming;Han et al 2017Han et al , 2019a. Ideally, this angle would be directly measured by large-shear-displacement interface shear tests using steel plates with rusting profiles similar to those of the production piles and soil samples collected from the target depth.…”

Section: Determination Of Interface Friction Anglementioning

confidence: 99%

Closure to “Effects of Interface Roughness, Particle Geometry, and Gradation on the Sand–Steel Interface Friction Angle” by Fei Han, Eshan Ganju, Rodrigo Salgado, and Monica Prezzi

Han

Ganju

Prezzi

et al. 2019

J. Geotech. Geoenviron. Eng.

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“…Paik [12] and Saleem [13] suggested that the method of pipe pile installation is the key point affecting the bearing capacity. Some scholars have conducted SLTs on pipe piles to obtain the UBC of pipe piles, comparing the results with those from the existing calculation theory, and modifying the relevant formulas [14][15][16]. Soil plugs on the interior of pipe piles produce additional friction, which improves the UBC to a certain extent and has also been studied by many scholars [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Static Load Test and Numerical Analysis of Influencing Factors of the Ultimate Bearing Capacity of PHC Pipe Piles in Multilayer Soil

Zhang

Xu³

et al. 2021

Sustainability

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Prestressed high-strength concrete (PHC) pipe piles have been widely used in engineering fields in recent years; however, the influencing factors of their ultimate bearing capacity (UBC) in multilayer soil need to be further studied. In this paper, a static load test (SLT) and numerical analysis are performed to obtain the load transfer and key UBC factors of pipe piles. The results show that the UBC of the test pile is mainly provided by the pile shaft resistance (PSR), but the pile tip resistance (PTR) cannot be ignored. Many factors can change the UBC of pipe piles, but their effects are different. The UBC of the pipe pile is linearly related to the friction coefficient and the outer-to-inner diameter ratio. Changes in the pile length make the UBC increase sharply. Low temperatures can produce freezing stress at the pile–soil interface. The effect of changing the Young modulus of pile tip soil is relatively small.

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Static Capacity of Closed-Ended Pipe Pile Driven in Gravelly Sand

Cited by 16 publications

References 38 publications

Monitoring of the Response of the Sagamore Parkway Bridge and its Foundations During a Live Load Test

Monitoring of the Response of the Sagamore Parkway Bridge and its Foundations During a Live Load Test

Closure to “Effects of Interface Roughness, Particle Geometry, and Gradation on the Sand–Steel Interface Friction Angle” by Fei Han, Eshan Ganju, Rodrigo Salgado, and Monica Prezzi

Static Load Test and Numerical Analysis of Influencing Factors of the Ultimate Bearing Capacity of PHC Pipe Piles in Multilayer Soil

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