000 02008cam a2200337 a 4500
003 EG-GiCUC
005 20250223031639.0
008 170115s2016 ua dh f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.13.05.M.Sc.2016.Mo.A
100 0 _aMoataz Hesham Ali Soliman
245 1 0 _aArching action around existing tunnels subjected to surface loads /
_cMoataz Hesham Ali Soliman ; Supervised Mohamed Ibrahim Amer , Sherif Adel Akl
246 1 5 _aأفعال التقوس حول الأنفاق القائمة المعرضة لأحمال سطحية
260 _aCairo :
_bMoataz Hesham Ali Soliman ,
_c2016
300 _a122 P. :
_bcharts , facsimiles ;
_c30cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering
520 _aThe main goal of this research is to study the effect of stress redistributions around tunnels. The thesis emphasizes on analyzing the increase in the lining straining actions due to surface loads directly above it. The study is carried out using two-dimensional finite element analyses with plane strain conditions. The finite element program PLAXIS V8.2 is used in the simulations as well as CANDE 2007. Different factors affecting the arching action are considered: method of installation, soil-lining relative stiffness and cover to width/diameter ratio. Moreover, the effect of using different elastoplastic constitutive models on predicting the arching action is considered using two models: Mohr-Coulomb and Drucker-Prager
530 _aIssued also as CD
653 4 _aArching,, tunnels, , internal forces
653 4 _aStress redistributions
653 4 _aSurface loads
700 0 _aMohamed Ibrahim Amer ,
_eSupervisor
700 0 _aSherif Adel Akl ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aSoheir
_eCataloger
942 _2ddc
_cTH
999 _c59438
_d59438