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035 _a.b12160969
099 9 _aAIT Thesis no.GE-12-18
100 0 _aNguyen Duc Dung
245 1 0 _aSettlement analysis and stability control diagram for an embankment constructed on Me Kong Delta soft ground improved by PVD
260 _aPathum Thani, Thailand :
_bAsian Institute of Technology,
_c2013
300 _a57 leaves :
_bill. +
_e1 online resource
490 1 _aThesis ;
_vno. GE-12-18
500 _aA thesis study submitted in partial fulfillment of the requirements for the degree of Master Engineering in Geotechnical and Earth Resources Engineering, School of Engineering and Technology
520 _aEmbankments construct on soft ground cause settlement and/or sliding failure due to the loading, change in ground water head, etc. In order to avoid problem caused by instability of soft soil, the very important work is to determine the factor of safety of embankment during construction. It is very useful for practical engineering to have a stability control diagram during the staged construction of an embankment as Matsuo and Kawamura have proposed in 1977. As can be seen from the monitoring data at Cai Mep International Terminal (CMIT) project and some other projects using PVD on thick soft ground, the value of qj/qf (qi is the loading at time i and qf is the loading at failure of an embankment) according to the measured values of settlement (S) and lateral displacement (h) obtained from Matsuo and Kawamura (1977){u2019}s graph reaching or even exceeding the unity but no any problem with embankment stability. Therefore, it is necessary to verify the Matsuo and Kawamura (1977){u2019}s graph for practical use in stability control during construction of staged embankments preloading on thick soft ground improved with PVD. This study is aimed to verify the applicability of using Matsuo and Kawamura (1977){u2019}s graph for practical use in stability control during construction of embankment preloading on thick soft ground improved by PVD. In this thesis, stability analysis works are done by using SLOPE/W software and PLAXIS software. The deformation and factor of safety values of soft ground improved by PVD under embankment preloading by staged construction were determined. Results of analysis including deformation curves and factor of safety values were loaded on the graph of Matsuo and Kawamura (1977). Based on the distribution of factor of safety values on this graph, the criterion failure curves of Matsuo and Kawamura (1977){u2019}s graph have been revised, and a new stability control diagram for staged construction of embankments on thick soft ground improved by PVD at a site in South of Vietnam is proposed.
502 _aThesis (M. Eng.) - Asian Institute of Technology, 2013
650 0 _aEmbankments
_zMe Kong Delta (Thailand)
650 0 _aClay soils
_zMe Kong Delta (Thailand)
651 4 _aMe Kong Delta (Thailand)
700 1 _aPham, Huy Giao,
_eChairperson
700 0 _aNoppadol Phien-Wej,
_eExamination Committee
700 0 _aTian Ho Seah,
_eExamination Committee
700 1 _aPham Van Long,
_eExamination committee
710 2 _aPower Engineering Consulting join stock Company 4,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. GE-12-18
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B03046
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_tAbstract--AIT Thesis no.GE-12-18
_vn
945 _lmnait
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