THE INFLUENCE OF CLAY CORE COMPOSITION ON THE PERMANENT DISPLACEMENT OF EMBANKMENT DAMS
Composite clay is a mixture of clay, as the main body and aggregates which are floating within the clayey matrix. Undrained behavior of composite clays in its natural or compacted state e.g., core material of embankment dams has a great importance for the geotechnical engineers. On the other hand, experience has shown that significant pore pressure could build-up during cyclic loading in composite clays. In this paper, the results of dynamic analyses performed on Karkheh embankment dam in Iran, incorporating different core materials, are presented. Appropriate models for the core materials are utilized, based on the laboratory test results. The Newmark method is used to evaluate the permanent displacement. It is shown that seismic pore pressure build-up in composite clays can significantly increase the Newmark permanent displacement.
Composite Clay Aggregates Pore pressure build-up Karkheh dam Newmark method
S.R.TAFTI A.SHAFIEE M.M.RAJABI
International Institute of Earthquake Engineering and Seismology,Tehran,Iran Assistant Prof.and Director of Geotechnical Engineering Research Center,Geotechnical Engineering Res Department of Civil Engineering,Shiraz University,Shiraz,Iran
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）