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008 181127s2018 ua dh f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aPh.D
099 _aCai01.13.05.Ph.D.2018.No.R
100 0 _aNoha Ahmed Rabie
245 1 0 _aReliability of slope stability analysis using limit equilibrium and finite element /
_cNoha Ahmed Rabie ; Supervised Ashraf K. Hussien , Sherif A. Akl
246 1 5 _aمدى الثقه فى مسأله إتزان الميول باستخدام طريقه الاتزان و طريقة العناصر المحدده
260 _aCairo :
_bNoha Ahmed Rabie ,
_c2018
300 _a184 P. :
_bcharts , facsimiles ;
_c30cm
502 _aThesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Civil Engineering
520 _aReliability of safety factor in slope stability problems is a major issue in geotechnical engineering. The research goal is to study the reliability of the factor of safety of a slope stability calculated by LE and FE methods. Simple slope rested on granular soil and cohesive soil with different soil states was studied. A comparison between limit equilibrium using SLIDE software and finite element using PLAXIS 2D was done. Among LE methods, Bishop simplified, Janbu simplified and Morgenstern-Price methods were utilized. Also, three constitutive models for FE analyses were applied. Statistical analysis was performed to predict the coefficient of variation of shear strength parameters. The research indicates that FS alone is misleading and reliability analysis provides a logical framework. Bishop and Morgenstern limit equilibrium methods were almost the same results while using Janbu method gave quite different than the other two methods. Different levels of complexity in soil models produce almost the same values of FS and reliability index. While using simple constitutive model results in a smaller value of PF% than sophisticated one for granular soil. FS calculated using FE method is less than using LE approach results. Accordingly, LE produces results in higher reliability index than (FE). Finally, LE approach is preferable for granular soil
530 _aIssued also as CD
653 4 _aReliability
653 4 _aSlope stability
653 4 _aUncertainty
700 0 _aAshraf Kamal Hussien ,
_eSupervisor
700 0 _aSherif Adel Akl ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aShimaa
_eCataloger
942 _2ddc
_cTH
999 _c68769
_d68769