A numerical study of the effect of moisture content on induced ground vibration during dynamic compaction

Javad Ghorbani, Majidreza Nazem, John Carter, David Airey

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

Abstract

This paper presents a numerical study of the effect of soil moisture content on induced vibration during the application of
dynamic compaction. Dynamic Compaction (DC) is known as one of the most cost-effective ground improvement techniques because it can provide rapid improvement of the geotechnical properties of soils, and because it does not usually need any off-site disposal of excess materials. However, DC may not be economically advantageous due to the induced vibrations undesirably affecting other structures near the compaction zone. The inability to accurately predict the magnitude and properties of the generated waves in the design phase of dynamic compaction can mean restricted application of dynamic compaction or may result in unnecessary reduction of its efficiency. As a response to the demand for a more reliable predictive method, in this paper a numerical framework is chosen based on the theory of mixtures,
which considers the simultaneous existence of the air, water and solid phases of the soil. This provides an analysis of the dynamic compaction of soils at different moisture contents. It is shown that while the peak particle velocity (PPV) generally follows an inverse relationship with moisture content it can be affected by characteristic parameters of the soil.
Original languageEnglish
Title of host publicationProceedings from 3rd International Conference on Performance Based Design in Earthquake Geotechnical Engineering (Vancouver 2017)
PublisherInternational Society for Soil Mechanics and Geotechnical Engineering (ISSMGE)
Number of pages7
Publication statusPublished - 2017
EventInternational Conference on Performance-based Design in Earthquake Geotechnical Engineering 2017 - Vancouver, Canada
Duration: 16 Jul 201719 Jul 2017
Conference number: 3rd
https://www.issmge.org/news/pbd-iii-vancouver-2017

Conference

ConferenceInternational Conference on Performance-based Design in Earthquake Geotechnical Engineering 2017
Abbreviated titlePBD-III
CountryCanada
CityVancouver
Period16/07/1719/07/17
Internet address

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