Underwater Pile Driving Hammer with Active Impact Body
نویسندگان
چکیده
منابع مشابه
Measurement and Modelling of Underwater Noise from Pile Driving
Many coastal and offshore construction activities require the driving of piles into the seabed, either using impact or vibratory pile drivers. Impact pile driving produces an intense impulsive underwater noise that has been associated with fish deaths at very short range, whereas vibratory pile driving produces a lower level continuous noise. Because of the high sound levels involved, noise fro...
متن کاملValidation of dBSea, Underwater Noise Prediction Software. Pile Driving Focus
This report aims to characterise the prediction error of the different noise modelling algorithms used by the underwater noise prediction software “dBSea”. Two shallow water pile driving scenarios are presented, and the software’s prediction is matched against the measured real world data. The results of the comparison show that while you can get good results with a simple model based on spheri...
متن کاملModeling of vibratory pile driving
Vibratory installation of piles and casings can be extremely economical and therefore the contractors’ preferred method of pile driving. Compared to impact pile driving it also has the advantage of reduced noise pollution. Unfortunately, this installation method is still fraught with uncertainties. The foremost question is driveability and equally important is the question of bearing capacity o...
متن کاملAnalytical model for the sound pressure waveform radiated underwater when an offshore steel pipe pile is driven with an impact hammer
An analytical model has been developed for the pressure waveform radiated underwater when an offshore steel pipe pile is struck by a hammer. The model is based on the coupled equations of motion for axial and radial vibration of a thin shell and yields frequency-dependent phase velocity and attenuation of these vibrations. A harmonic solution is obtained for the radiated sound pressure, using J...
متن کاملInvestigation of Peak Particle Velocity Variations during Impact Pile Driving Process
Impact pile driving is a multi-component problem which is associated to multi-directional ground vibrations. At first, vibration is transferred from the hammer to the pile and then to the common interface of pile and soil. This is then transferred to the environment and has great impact on the adjacent structures, causing disturbance to residents and also damage to the buildings. It is of high ...
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ژورنال
عنوان ژورنال: Mechanical Engineering Research
سال: 2012
ISSN: 1927-0615,1927-0607
DOI: 10.5539/mer.v2n1p81