Results 11 to 20 of about 2,884 (214)

Drivability of Large Diameter Steel Cylinders During Hammer-Group Vibratory Installation for the Hong Kong–Zhuhai–Macao Bridge

open access: yesEngineering, 2023
The Hong Kong–Zhuhai–Macao Bridge (HZMB) involved the installation of 120 mega-cylinders with a diameter of 22 m, weights up to 513 t, and penetration depths up to 33 m using an eight-vibratory hammer group.
W.J. Lu   +5 more
doaj   +1 more source

Exposure of benthic invertebrates to sediment vibration: From laboratory experiments to outdoor simulated pile-driving [PDF]

open access: yes, 2017
Activities directly interacting with the seabed, such as pile-driving, can produce vibrations that have the potential to impact benthic invertebrates within their vicinity.
Breithaupt, Thomas   +11 more
core   +3 more sources

Underwater Noise Emission Due to Offshore Pile Installation: A Review

open access: yesEnergies, 2020
The growing demand for renewable energy supply stimulates a drastic increase in the deployment rate of offshore wind energy. Offshore wind power generators are usually supported by large foundation piles that are driven into the seabed with hydraulic ...
Apostolos Tsouvalas
doaj   +1 more source

Numerical evaluation of the pipe-pile buckling during vibratory driving in sand [PDF]

open access: yes, 2019
The buckling of steel pipe piles during vibratory driving is numerically studied using the Multi-Material Arbitrary Lagrangian-Eulerian (MMALE) method. This method handles the large soil deformations that occur during pile driving and other geotechnical ...
Aubram, Daniel   +3 more
core   +1 more source

Measurement of ground motion near piles during driving [PDF]

open access: yes, 2014
Two types of vibration damage caused by driving piles have been reported in the literature: direct structural damage and damage due to settlement.
Athanasopoulos-Zekkos, Adda   +4 more
core   +2 more sources

Numerical evaluation of the soil behavior during impact driving of pipe-piles [PDF]

open access: yes, 2019
During the impact driving of pipe-piles, the soil is influenced in different ways including the void ratio, stress distribution, and plugging formation.
Aubram, Daniel   +3 more
core   +1 more source

Amplitude and frequency control of a vibratory pile driver [PDF]

open access: yes, 2000
—This paper describes the digital control of a vibratory pile driver in which the vibration is generated via two tandem pairs of electrically driven, geared, contra-rotating eccentrics.
Bingham, Chris   +4 more
core   +1 more source

Prospects for Further Rock Cutting Mechanisms Development [PDF]

open access: yes, 2015
In this research power rock cutting mechanisms are considered. Impact and vibratory impact mechanisms are presented, their design characteristics are given.
Novoseltseva, Maria Viktorovna   +1 more
core   +1 more source

Comment on “Temporal and spatial variation in harbor seal (Phoca vitulina L.) roar calls from southern Scandinavia” [J. Acoust. Soc. Am. 141, 1824-1834 (2017)] [PDF]

open access: yes, 2018
In their recent article, Sabinsky and colleagues investigated heterogeneity in harbor seals' vocalizations. The authors found seasonal and geographical variation in acoustic parameters, warning readers that recording conditions might account for some of ...
Ravignani, A.
core   +2 more sources

Energy flux analysis for quantification of vibratory pile driving efficiency

open access: yesJournal of Sound and Vibration, 2022
In this paper, the energy flux in a pile modeled as an elastic shell, is studied theoretically and experimentally. Based on this analysis, a new procedure is proposed to quantify the pile installation efficiency. This procedure is of importance for vibratory installation of the foundations of offshore wind turbines and it is believed to be the first ...
Sergio S. Gómez   +2 more
openaire   +3 more sources

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