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  4. SPH model of water jet erosion in granular soils with a boundary layer of liquefied soil
 
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SPH model of water jet erosion in granular soils with a boundary layer of liquefied soil

Publikationstyp
Conference Paper
Date Issued
2014-06
Sprache
English
Author(s)
Bozhana, Stefanova  
Grabe, Jürgen  
Institut
Geotechnik und Baubetrieb B-5  
TORE-URI
http://hdl.handle.net/11420/7293
Volume
2
Start Page
999
End Page
1004
Citation
International Symposium on Geomechanics from Micro to Macro, ISSMGE (2): 999-1004 (2014-06)
Contribution to Conference
International Symposium on Geomechanics from Micro to Macro, ISSMGE 2014  
Publisher DOI
10.1201/b17395-179
Scopus ID
2-s2.0-84907319892
The interaction between fluids and soil is important to a wide range of geotechnical problems. Especially when considering high velocity impacts, such as jet grouting, the interaction between both phases is quite complex, due to the dynamic and turbulent processes occurring. This paper describes a series of experiments concerning high velocity injection into soil, which were conducted in 2005. The experiments are used as a base for the numerical modeling of the process, for which the smoothed particle hydrodynamics (SPH) was applied. SPH is a meshfree method, which was originally employed in the late 1970's for astrophysical calculations. Nowadays, it is being used in a vast range of research domains including fluid and solid mechanics, hydrodynamics and also coastal and geotechnical engineering. SPH uses particles to describe materials in Lagrangian point of view. It is able to deal with large deformations and dynamic processes. Our goal is to provide an innovative application of SPH for the simulation of the interaction between water and soil in the framework of multiphase models. The analysis is supposed to give information on the penetrations process of a high velocity water jet into the soil as well as the penetration depth and the mechanism of soil liquefaction during jet grouting. © 2015 Taylor & Francis Group.
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