Effect of the initial structure on the behaviour of Chlef sand

Noureddine Della (Author), Ahmed Arab (Author), Mostefa Belkhatir (Author), Hanifi Missoum (Author), Claude Bacconnet (Author), Daniel Boissier (Author)

Abstract

It has been known for many years that initial structure, plays an important part in the results of laboratory testing of natural of silty sands. For this purpose, a series of monotonic undrained triaxial compression tests were carried out on samples composed of Chlef sand with 0.5% non-plastic silt content using two depositional methods (dry funnel pluviation and wet deposition) at different initial relative density (RD= 29%, 50% and 80%). All specimens were subjected to isotropic consolidation of 50 kPa, 100 kPa and 200 kPa. It was found that the initial structure of the soil influences considerably the undrained shear response in terms of maximal deviatoric stress, peak strength and excess pore water pressure.

Keywords

liquefaction;sand;dry funnel pluviation;wet deposition;density;deviatoric stress;pore pressure;

Data

Language:	English
Year of publishing:	2010
Typology:	1.01 - Original Scientific Article
Organization:	UM FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
UDC:	551:624.13
COBISS:	257455616
ISSN:	1854-0171
Parent publication:	Acta geotechnica Slovenica
Views:	549
Downloads:	61
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary title:	Vpliv začetne strukture na lastnosti peska Chlef
Secondary abstract:	Že vrsto let je znano, da začetna struktura igra pomembno vlogo pri rezultatih laboratorijskega preskušanja naravnih meljnih peskov. V ta namen se je izvedla vrsta nedreniranih triosnih tlačni preskusov na vzorcih, sestavljenih iz peska Chlef z 0,5% vsebnostjo neplastičnega melja z uporabo dveh sedimentacijskih metod in pri različnih začetnih relativnih gostotah (Dr = 29%, 50% in 80%). Vsi vzorci so bili izotropno konsolidirani pri 50 kPa, 100 kPa in 200 kPa. Ugotovljeno je bilo, da ima začetna struktura tal bistveni vpliv na nedrenirani strižni odziv izražen z maksimalno deviatorično napetostjo, vrhnjo trdnostjo in prirastkom pritiska porne vode.
Secondary keywords:	geološki materiali;peski;plastičnost;strižne lastnosti;gostota;porni tlak;napetost;
URN:	URN:SI:UM:
Type (COBISS):	Scientific work
Pages:	str. 4-15
Volume:	ǂVol. ǂ7
Issue:	ǂno. ǂ2
Chronology:	2010
ID:	10940519