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Stone columns and pvds modeling techniques with emphasis on load transfer and consolidation behavior / Ahmed Mohamed Omar Mohamed ; Supervised Mohamed Abdallah Elkholy , Shehab Sherif Wissa

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Ahmed Mohamed Omar Mohamed , 2021Description: 118 P. : charts , facsimiles ; 30cmOther title:
  • طرق نمذجة الأعمدة الحجرية والمصارف الرأسية سابقة التجهيز مع التركيز على انتقال الاحمال وسلوك التدعيم [Added title page title]
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  • Issued also as CD
Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering Summary: This research aims to study soil improvement techniques in soft soil, mainly by using stiffer elements like stone columns or drained elements like sand drains and prefabricated vertical drains (PVDs). At first, modeling techniques were discussed by using Plaxis 3-D and compared with Plaxis 2-D in order to investigate the most probable modeling technique.Then a case study was represented of an embankment constructed upon soft clay stratum in Finland to study the behavior of soft layers under unimproved and improved PVD sections. After modeling verification, which numerical results matched field observations, verified models were used as a parametric study to model stone columns, and sand drains with different diameters in order to compare the rate of consolidation, final settlement, and the relation between axial stiffness ratio with load transfer to split up between stiffer and drainage elements. Finally, design charts have been made to connect the axial stiffness ratio with global safety and settlement improvement factors
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.05.M.Sc.2021.Ah.S (Browse shelf(Opens below)) Not for loan 01010110084848000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.05.M.Sc.2021.Ah.S (Browse shelf(Opens below)) 84848.CD Not for loan 01020110084848000

Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering

This research aims to study soil improvement techniques in soft soil, mainly by using stiffer elements like stone columns or drained elements like sand drains and prefabricated vertical drains (PVDs). At first, modeling techniques were discussed by using Plaxis 3-D and compared with Plaxis 2-D in order to investigate the most probable modeling technique.Then a case study was represented of an embankment constructed upon soft clay stratum in Finland to study the behavior of soft layers under unimproved and improved PVD sections. After modeling verification, which numerical results matched field observations, verified models were used as a parametric study to model stone columns, and sand drains with different diameters in order to compare the rate of consolidation, final settlement, and the relation between axial stiffness ratio with load transfer to split up between stiffer and drainage elements. Finally, design charts have been made to connect the axial stiffness ratio with global safety and settlement improvement factors

Issued also as CD

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