000			03455cam|a2200421 i 4500
005			20260818090430.0
008			261198s1989 th r 0000|00eng d
035			_a.b10195300
099		9	_aAIT Thesis no. GT-89-13
100	1		_aShieh, Shien-jeng
245	1	0	_aDetermination of soil parameters for design of buried flexible pipes in Bangkok clay
260			_aBangkok : _bAsian Institute of Technology, _c1989
300			_a92 p.
490	1		_aThesis ; _vno. GT-89-13
500			_aA thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Engineering and Technology
502			_aThesis (M.Eng.) - Asian Institute of Technology, 1989
520			_aA test section was conducted on a section of an actual buried pipe laying project in Bangkok subsoil . This flexible pipe was installed in a trench excavated with the help of braced sheet pile . The deflection of the pipe and the ground movements were closely monitored to evaluate the effect of overburden and surcharge loads and ground movements on the response of the pipe. It was found that a large ground surface settlement , 2.08%- 4 . 33% of trench depth , developed at the end of the completion of backfilling and sheet pile pulling. The maximum lateral ground movement toward the trench was approximately the same of the maximum settlement. The settlement further increased by 27% to 4396 at the end of the following three weeks while the lateral displacement remained almost unchanged . This large ground movement has great effect on pipe deflection and thus the back calculated value of soil reaction modulus (E') of the backfill from the Iowa formula. The E ' value is in the range of 303 - 976 ksc when backfill to 1.2 m above pipe. The effect of sheet pile pulling on the reduction of E' also observed , its value ranges from 105-214 ksc. At the end of construction, E' is 112 - 462 ksc, which is higher than that suggested by U.S.B.R. guideline. Furthermore, it also show that even voids left after sheet pile pulling did not reduce the E' value drastically as expected probably due to the compensating effect of large inward lateral ground movement .
650		0	_aPipe lines
650		0	_aClay _xThailand _xBangkok
700	0		_aNoppadol Phien-Wej, _eChairperson
700	1		_aHonjo, Yusuke, _eExamination Committee
700	1		_aBergado, Dennes T., _eExamination Committee
710	2		_aRet- Ser Engineering Agency Taipei , Taiwan , R.O.C., _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. GT-89-13
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B18082
907			_a.b10195300 _bmnait _cs
902			_a240329
998			_b2 _c951012 _dm _ea _fs _g0
945			_lmnait
945			_lmnait
945			_lmnarc
942			_c20
942			_c40
909			_aBarcode : 30050003016291 _bCREATED : 1995-10-13 _cRECORD # : i1023407x _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
909			_aBarcode : 30050003016309 _bCREATED : 1995-10-13 _cRECORD # : i10234081 _dLPATRON : 1014538 _eLCHKIN : 2016-12-13 _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 3 _jTOT RENEW : 0
909			_aBarcode : 30050120309678 _bCREATED : 2016-05-24 _cRECORD # : i12989757 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
999			_c28057 _d28057