Dynamic Compaction Vibration Monitoring in a Saturated Site

Dynamic Compaction is a well established ground improvement technique in which a heavy pounder is dropped from a significant height to improve the soil’s mechanical properties. The pounder impact creates waves that compact the soil; however these waves may also be a nuisance to and damage neighbouri...

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Main Authors: Hamidi, Babak, Nikraz, Hamid, Varaksin, S.
Other Authors: Mohamed A Shahin
Format: Conference Paper
Published: Australian Geomechanics Society 2011
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/5178
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author Hamidi, Babak
Nikraz, Hamid
Varaksin, S.
author2 Mohamed A Shahin
author_facet Mohamed A Shahin
Hamidi, Babak
Nikraz, Hamid
Varaksin, S.
author_sort Hamidi, Babak
building Curtin Institutional Repository
collection Online Access
description Dynamic Compaction is a well established ground improvement technique in which a heavy pounder is dropped from a significant height to improve the soil’s mechanical properties. The pounder impact creates waves that compact the soil; however these waves may also be a nuisance to and damage neighbouring structures and facilities. Peak particle velocity (PPV) has been identified as the most suitable parameter for assessing vibration associated risks. Previous researchers have proposed a number different equations for predicting PPV. Dynamic Compaction has recently been used for soil improvement in Oman’s Blue City Project. Particle velocities and vibration frequencies in three directions have been monitored at several distances during the different phases of ground treatment. In all phases PPV has been recorded to be in the radial direction. It has been observed that although it appears that vibration frequency is not influenced by the deep compaction phase, does increase with the progression of work and application of later phases of Dynamic Compaction. This increase is more pronounced at farther distances, but becomes negligible when impact point is closer than a critical distance.
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spelling curtin-20.500.11937-51782023-01-18T08:46:46Z Dynamic Compaction Vibration Monitoring in a Saturated Site Hamidi, Babak Nikraz, Hamid Varaksin, S. Mohamed A Shahin Hamid R Nikraz vibration monitoring dynamic compaction peak particle velocity PPV Dynamic Compaction is a well established ground improvement technique in which a heavy pounder is dropped from a significant height to improve the soil’s mechanical properties. The pounder impact creates waves that compact the soil; however these waves may also be a nuisance to and damage neighbouring structures and facilities. Peak particle velocity (PPV) has been identified as the most suitable parameter for assessing vibration associated risks. Previous researchers have proposed a number different equations for predicting PPV. Dynamic Compaction has recently been used for soil improvement in Oman’s Blue City Project. Particle velocities and vibration frequencies in three directions have been monitored at several distances during the different phases of ground treatment. In all phases PPV has been recorded to be in the radial direction. It has been observed that although it appears that vibration frequency is not influenced by the deep compaction phase, does increase with the progression of work and application of later phases of Dynamic Compaction. This increase is more pronounced at farther distances, but becomes negligible when impact point is closer than a critical distance. 2011 Conference Paper http://hdl.handle.net/20.500.11937/5178 Australian Geomechanics Society fulltext
spellingShingle vibration monitoring
dynamic compaction
peak particle velocity
PPV
Hamidi, Babak
Nikraz, Hamid
Varaksin, S.
Dynamic Compaction Vibration Monitoring in a Saturated Site
title Dynamic Compaction Vibration Monitoring in a Saturated Site
title_full Dynamic Compaction Vibration Monitoring in a Saturated Site
title_fullStr Dynamic Compaction Vibration Monitoring in a Saturated Site
title_full_unstemmed Dynamic Compaction Vibration Monitoring in a Saturated Site
title_short Dynamic Compaction Vibration Monitoring in a Saturated Site
title_sort dynamic compaction vibration monitoring in a saturated site
topic vibration monitoring
dynamic compaction
peak particle velocity
PPV
url http://hdl.handle.net/20.500.11937/5178