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Stability Analysis Of Ultra-high Embankment Slope Under Earthquake Action

Posted on:2011-09-03Degree:MasterType:Thesis
Country:ChinaCandidate:J P YangFull Text:PDF
GTID:2132360305980413Subject:Road and Railway Engineering
Abstract/Summary:PDF Full Text Request
Seismic stability of slope is one of hot Problems in geotechnical seismic engineering and earthquake engineering field.That complexity of the composition of Geological and constitutive relationship and speciality of earthquake ground motion With strong randomicity make slope seismic stability diffieult.Based on the Previous study on the stability of slopes under earthquake action,the use of large-scale geotechnical software, GEO-SLOPE, for different high embankment slope, stability analysis under seismic study using a different calculation method, enter the different types of seismic waves and seismic intensity, combined with changes in the parameters embankment to find out High Fill Embankment slope stability factor was studied.This according to " the designed struetures can resist against minor earthquake without any damage, resist against moderate earthquake with repairable structural damage and resist against strong earthquake without collapse",calculation and analysis used Pseudo-static method, static finite element method and dynamic finite element method for carrying out the role of a high degree of slope under earthquake under the stability analysis, research papers a total of six high degree of slope calculations. the dynamic response analysis enter the United States El centro seismic, Taft seismic and by standard response spectrum fitting of three kinds of synthetic seismic waveforms respectively,.The results showed that: Embankment fill parameters related to changes varies in the degree of influence on the stability factor. Through the analysis of this paper, draw a number of some important conclusions, the ultra-high embankment slope under earthquake action, The stability with the parameters changeing give a basic understanding.The results achieved ultra-high embankment slope stability of the grasp of the overall situation for the ultra-high embankment slope to provide reference for further analysis, but also for high-intensity earthquake zone of the ultra-high embankment slope design referenceWe can grasp the whole situation of ultra-high embankment slope stability, It provides ultra-high embankment on the further analysis of reference, but also provides a high-intensity earthquake zone of high embankment slope design frame of reference.
Keywords/Search Tags:Ultra-High Embankment Slope, Earthquake Action, Dynamic Finite Element Method, Pseudo-Static Method, Stability Analysis, Factor of Safety
PDF Full Text Request
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