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Liquefaction Of Silts: The Adapazari Criteria

Thumbnail
Author
Bol, Ertan
Önalp, Akın
Arel, Ersin
Sert, Sedat
Özocak, Aşkın
Type
Article
Date
2010-08
Language
en_US
Metadata
Show full item record
Abstract
Ground failures in the form of liquefaction, loss of bearing capacity and soil softening have been observed during the 1999 Marmara (Turkey) earthquake. Research to understand the failure phenomena has been carried out since the earthquakes. This paper attempts to provide explanations to the liquefaction failure of silts in seismic conditions. Findings from a large amount of data collected in the city of Adapazari on the physical and mechanical properties of soils is presented. A geomorphological map of the city has shown that there are surprising horizontal and vertical variations of the facies due to the activity of rivers in the past. Cases of liquefaction appear to have concentrated in former backswamp areas where silts and sandy silts were deposited by crevasse splays. Properties of the soils in zones of liquefaction and non-liquefaction have been determined down to a reasonable depth by measuring the average size, clay content and liquidity index as well as cone penetration resistances with porewater pressures to discover that there is significant discrepancy among those profiles susceptible to liquefaction and non-liquefying deposits. A set of "Adapazari Criteria" is proposed which is intended to improve over the "Chinese Criteria" and is simple enough to be universally applicable. This classification is similar to the existing criteria but emphasizes more on the clay content in addition to measuring the liquid limit and the liquidity index as well as the average size.
Subject
Turkey
Adapazari
Earthquake
Ground failure
Liquefaction
Fine-grained soils
Clay content
Liquidity index
Average size
Sand content
Türkiye
Adapazarı
Deprem
zemin hatası
Sıvılaşma
İnce taneli topraklar
kil içeriği
likidite indeksi
Ortalama boyut
kum içeriği
URI
http://hdl.handle.net/11413/1299
Collections
  • Makaleler / Articles [122]
  • Scopus Publications [724]
  • WoS Publications [1016]

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İstanbul Kültür University

Hakkında |Politika | Kütüphane | İletişim | Send Feedback | Admin

Istanbul Kültür University, Ataköy Campus E5 Karayolu Üzeri Bakırköy 34158, İstanbul / TURKEY
Copyright © İstanbul Kültür University

Creative Commons Lisansı
IKU Institutional Repository, Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

Designed by  UNIREPOS