Chapter
Apr 26, 2012
Experimental Study on Subsurface Erosion of Peats
Authors: Ming Xiao [email protected], Jose Gomez, Benjamin Adams, Nathan Shwiyhat, and Exequiel SincoAuthor Affiliations
Publication: GeoFlorida 2010: Advances in Analysis, Modeling & Design
Abstract
Subsurface erosion threatens the stability of levees and earth dams. A less understood aspect of subsurface erosion is the erosion potential of peat. In the Sacramento-San Joaquin Delta in California, some levees were built on peat deposits. This paper reports the preliminary laboratory study of subsurface erosion of peat. Two types of peats are tested. Hole erosion tests are conducted using a triaxial apparatus. The triaxial cell is modified to allow the eroded peat particles to exit the cell into a pressurized sedimentation tank. The peat specimens are saturated and consolidated under four different effective stresses. Then hydraulic gradient is incrementally applied to the specimen to find the critical hydraulic gradient. Based on the preliminary research, it is concluded that (1) when peat is consolidated under embankment load, even with small effective stress of 34 kN/m2, internal erosion is less likely to occur, (2) due to the high compressibility of peat, consolidation under increased embankment loads tends to close (or heal) initially formed piping channels.
Get full access to this chapter
View all available purchase options and get full access to this chapter.
Information & Authors
Information
Published In
Copyright
© 2010 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
Permissions
Request permissions for this article.
Authors
Affiliations
M.ASCE
Assistant Professor, Department of Civil and Geomatics Engineering, M/S EE94. California State University, Fresno, California 93740. USA.E-mail: [email protected]
Jose Gomez
S.M.ASCE
Graduate, students, Department of Civil and Geomatics Engineering, California State University, Fresno.
Benjamin Adams
S.M.ASCE
Graduate, students, Department of Civil and Geomatics Engineering, California State University, Fresno.
Nathan Shwiyhat
S.M.ASCE
Graduate, students, Department of Civil and Geomatics Engineering, California State University, Fresno.
Exequiel Sinco
S.M.ASCE
Undergraduate, students, Department of Civil and Geomatics Engineering, California State University, Fresno.
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.
View Options
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.