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035 _a.b11533614
099 9 _aAIT Thesis no. GE-95-13
100 0 _aWasu Likitwanagarn
245 1 0 _aReanalysis of preloading with prefabricated vertical drains for the Bangkok-Chonburi Highway Project and the Outer Bangkok Ring Road Project
260 _aBangkok :
_bAsian Institute of Technology,
_c1996
300 _a162 leaves
490 1 _aThesis ;
_vno. GE-95-13
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering
502 _aThesis (M. Eng.) - Asian Institute of Technology, 1996
520 _aIn the Thailand Department of Highways (DOH) Projects of the, Second Bangkok Chonburi Highway and Outer Bangkok Ring Road Projects, the preloading with prefabricated vertical drain (PVD) were used to improve the subsoil layer. The instrumentation were installed to measure the behaviour of foundation soil under the highway embankment loading in the field. The observed settlement data were considered to provide us with reliable and direct information which are representative of the soil mass in the subsoil. In this study, soil parameters were determined by back-calculation. ASAOKA method was used to back-calculate the soil parameters from the monitoring data. The back-figured horizontal coefficient of consolidation (C11) was used to predict the amount and rate of settlements. Good agreement were obtained in case of ASAOKA method. One-dimensional and SKEMPTON & BJERRUM method were slightly higher in both highway embankment except section 2A/1 of SBCH which is rather high. The back-calculated C11 value of SBCH range from 8.6 to 87 m 2 /yr and 11 to 40 m 2 /yr for OBRR. The alternative construction sequence were predict by using the back-figured soil parameters in combination with SHANSEP method. The preloading time was reduced to about 2 to 4 months using the alternative construction sequence compared to the original proposed one
610 1 0 _aSecond Bangkok-Chonburi Highway Project
610 2 0 _aOuter Bangkok Ring Road Project
650 0 _aVertical drains
700 1 _aBergado, Dennes T.,
_eChairperson
700 0 _aNoppadol Phien-Wej,
_eExamination Committee
700 1 _aSugimoto, M.,
_eExamination Committee
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. GE-95-13
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B15104
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