NDLI: Geotechnical Characteristics of Volcanic Soils Taken from Recent Eruptions

Content Provider	Springer Nature Link
Author	Orense, Rolando P. Zapanta, Andrew Hata, Akiri Towhata, Ikuo
Copyright Year	2006
Abstract	Recent volcanic eruptions at Mt. Unzen (Japan) in 1990 and Mt. Pinatubo (Philippines) in 1991 produced voluminous amounts of ash and sediments which inundated widespread areas. In later rehabilitation and reconstruction, it is practical and economical to use these freshly deposited sediments as materials for foundations and embankments. However, the geotechnical properties of young volcanic products have not been fully investigated. Accordingly, we investigated the geotechnical characteristics of volcanic soils associated with three recent eruptions, namely, the Unzen and Izu-Oshima eruptions of 1990 and 1986, respectively, in Japan and the Pinatubo eruption of 1991 in the Philippines. We specifically investigated index properties, permeability and compaction characteristics, and strength and deformation behavior in drained conditions. Additionally, we examined the dynamic properties and liquefaction characteristics of samples taken from Mt. Pinatubo. The results showed that the geotechnical characteristics of the deposits generally varied with the sampling sites. Depending on the location, either upstream or downstream from a volcano, the preferential sizing due to alluvial deposition affects engineering properties of the deposits. For example, volcanic sediments upstream from Mt. Pinatubo have high compressibility and low cyclic strength, whereas those taken downstream show dilative tendencies and high liquefaction strength.
Starting Page	129
Ending Page	161
Page Count	33
File Format	PDF
ISSN	09603182
Journal	Geotechnical and Geological Engineering
Volume Number	24
Issue Number	1
e-ISSN	15731529
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2006-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	deformation geotechnical characteristics strength torsional shear volcanic Hydrogeology Geotechnical Engineering Civil Engineering Terrestrial Pollution Waste Management/Waste Technology
Content Type	Text
Resource Type	Article
Subject	Soil Science Geology Architecture Geotechnical Engineering and Engineering Geology

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