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Type: Conference paper
Title: Physical modeling of rolling dynamic compaction
Author: Chung, O.
Scott, B.
Jaksa, M.
Kuo, Y.
Airey, D.
Citation: Proceedings of the 19th International Conference on Soil Mechanics and Geotechnical Engineering, 2017 / vol.2017-September, pp.905-908
Publisher: Korean Geotechnical Society
Issue Date: 2017
ISBN: 978-89-952197-5-1
Conference Name: 19th Internationl Conference on Soil Mechanics and Geotechnical Engineering (19th ICSMGE) (17 Sep 2017 - 22 Sep 2017 : Seoul, Korea)
Abstract: Rolling dynamic compaction (RDC) is the generic term used for soil densification involving traversing the ground with a 3-, 4- or 5-sided module. Originally developed in South Africa in the late 1940s, RDC is particularly attractive as it is able to compact the ground more effectively, i.e. to greater depths than its static and vibrating roller counterparts, and more efficiently because of its greater speed - 12 km/h compared with 4 km/h using conventional circular drum rollers. Due to the combination of kinetic and potential energies, and the large mass of the module, RDC has demonstrated compacting effort to more than 3 m in some soils, which is far deeper than conventional static or vibratory rolling, which is generally limited to depths of less than 0.5 m. In order to understand better the efficacy of RDC in a range of soil types and ground and field conditions, a sophisticated 1:13 scale testing facility has been established. The paper presents an overview of RDC, its applications in civil and mining engineering, the testing facility and experimental program, and the research outcomes to date. = Compactage roulant dynamique (RDC) est le terme generique utilise pour la densification du sol impliquant traversant le sol avec un module 3, 4 ou 5 faces. Developpe initialement en Afrique du Sud a la fin des annees 1940, RDC est particulierement attrayante car elle est capable de compacter le sol plus efficacement, c'est a dire aux profondeurs plus grandes que ses homologues statiques et rouleaux vibrants, et plus efficacement en raison de sa plus grande vitesse - 12 kmh par rapport a 4 kmh en utilisant des rouleaux cylindriques circulaires conventionnels. En raison de la combinaison des energies cinetiques et potentielles, et la grande masse du module, RDC a demontre l'effort de compactage a plus de 3 m dans certains sols, ce qui est beaucoup plus profonde que laminage statique ou vibratoire classique, qui est generalement limitee a des profondeurs moins de 0,5 m. Afin de mieux comprendre l'efficacite de la RDC dans une gamme de types de conditions du sol et du terrain, une installation sophistiquee de test a l'echelle 1:13 a ete etablie. Le document presente un apercu du RDC, de ses applications en genie civil et de l'exploitation miniere, l'installation d'essai et du programme experimental et des resultats de la recherche a ce jour.
Keywords: Impact roller; dynamic compaction; ground improvement; 1-g physical model
Description: French title: Mod√©lisation physique du compactage roulant dynamique Abstract in English and French
RMID: 0030077311
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Appears in Collections:Civil and Environmental Engineering publications

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