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Title:Post-liquefaction volume change in micaceous sandy of Old Gediz River Delta
Authors:Basari, Ender (Author)
Ozden, Gurkan (Author)
Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Authorship owner)
Files:.pdf Acta_geotechnica_Slovenica_2013_Basari,_Ozden_Post-liquefaction_volume_change_in_micaceous_sandy_of_Old_Gediz_River_Delta.pdf (434,60 KB)
 
URL http://fgserver3.fg.um.si/journal-ags/2013-1/article-3.asp
 
Language:English
Work type:Scientific work (r2)
Typology:1.01 - Original Scientific Article
Organization:FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
Abstract:Post-liquefaction settlement characteristics of micaceous sands are not well investigated topic. Currently available charts relating post-liquefaction volumetric strain to relative density were developed for clean sand. Estimation of post-liquefaction settlement of micaceous sands, therefore, may stay on the unsafe side, since there is evidence indicating that mica grains could increase volume change tendency. Influence of mica content on post-liquefaction volumetric strain of sand-mica mixtures is studied in this article. Soil samples were prepared at various relative densities. Influence of fine content that could be present in the field was also investigated on tamped natural field samples recovered from boreholes drilled in a highly populated alluvial site known as the Old Gediz River Delta of Izmir. It was found that increasing mica content at a certain relative density resulted in higher volumetric strains as compared with the data on clean sands. It is deduced that influence of mica grains on sand behavior depends on initial void ratio of sand. Effects of mica grains decrease with increasing of relative density. Simple empirical relationships were derived relating mica content and relative density to volumetric strain. It was also noticed that fine content accelerated and increased post-liquefaction volumetric strains.
Keywords:sand, mica, non-plastic fines, post-liquefaction volume change
Year of publishing:2013
Number of pages:str. 33-40
Numbering:št. 1, Letn. 10
ISSN:1854-0171
UDC:624.131.5(560.212)
ISSN on article:1854-0171
COBISS_ID:277747712 Link is opened in a new window
NUK URN:URN:SI:UM:DK:F2HFH0QH
Copyright:Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru
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Record is a part of a journal

Title:Acta geotechnica Slovenica
Shortened title:Acta geotech. Slov.
Publisher:Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru
ISSN:1854-0171
COBISS.SI-ID:215987712 New window

Secondary language

Language:Slovenian
Title:Sprememba volumna sljudastih peščenih tal iz stare delte reke Gediz po likvifakciji
Abstract:Posedanje sljudastega peska po likvifakciji ni dovolj raziskano. Trenutno so na voljo preglednice o volumskem raztezku čistega peska po likvifakciji v odvisnosti od relativne gostote. Ocena posedanja sljudastih tal po likvifakciji je zato negotova, ker obstajajo dokazi, da lahko sljudasta zrna povečajo tendenco po spremembi volumna. Članek preučuje vpliv vsebnosti sljude na volumski raztezek zmesi peska in sljude. Pripravili smo vzorce zemljin različne relativne gostote. Preučili so tudi vpliv vsebnosti prahu, ki je lahko prisoten na terenu, v zbitih naravnih vzorcih, pridobljenih na terenu iz vrtin v gosto naseljenem področju stare delte reke Gediz v Izmirju. Ugotovili so, da ima povečanje vsebnosti sljude pri določeni relativni gostoti posledično višji volumski raztezek v primerjavi s čistim peskom. Zaključek je pokazal, da je vpliv sljudastih zrn na obnašanje peska odvisen od začetnega količnika por v pesku. Vpliv zrn sljude se zmanjšuje s povečanjem relativne gostote. Empirično so izpeljali enostavne odnose med vsebnostjo sljude in relativno gostoto ter volumskim raztezkom. Opazili so tudi, da je vsebnost prahu pospešila in povečala volumski raztezek po likvifakciji.
Keywords:geomehanika, utekočinjenje, pesek, volumski raztezek, Gediz, Izmir, pesek, sljuda, ne-plastični prašni delci, sprememba volumna po likvifakciji


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  1. Acta geotechnica Slovenica

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