000			03465nam|a2200421 i 4500
005			20260817162414.0
008			030299s1986 th 0000|0 eng d
035			_a.b10081707
099		9	_aAIT Thesis no. GT-85-20
100	1		_aIslam, Md. Shafiqul
245	1	0	_aAnalysis of permanent displacement of ground induced by liquefaction during earthquakes
260			_aBangkok : _bAsian Institute of Technology, _c1986
300			_a116 p.
490	1		_aThesis ; _vno. GT-85-20
500			_aA research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology
502			_aThesis (M. Eng.) - Asian Institute of Technology, 1986
520			_aThe permanent displacement of ground due to liquefaction during earthquakes poses problems to lifeline systems such as water, gas and electricity supplies, sewerage lines, roads and bridges. Many important constructions, particularly port facilities are build on horizontal backfill grounds of retaining structures. Large permanent displacements of this type of ground can occur due to the forward movement of the retaining structures during earthquakes. In this study, the seismic displacement behaviour of sheet-pile bulkheads, which are widely used as waterfront retaining structures, is examined in detail. A parametric study, i.e. the effects of factor of safety used in the static design, angle of friction of the backfill soil, water table etc. on the the seismic resistance of the bulkheads, is reported. The most important factor appears to be the factor of safety used in the static design. A general computer program is developed using the principle proposed by Newmark to estimate the permanent displacement of earth and earth retaining structures, once the dynamic resistance to movement is known. A simplified procedure to predict the permanent displacement of the liquefied backfill ground induced by the forward movement of the retaining structure is presented. The proposed method gives reasonable estimation of permanent displacements, uses simple numerical procedure and is very economical for analysis of large areas as compared to existing analysis.
650		0	_aSeismological research
700	1		_aTowhata, Ikuo, _eChairperson
700	1		_aBergado, Dennes T., _eExamination Committee
700	1		_aWhitney, Joseph B. R., _eExamination Committee
700	0		_aPrinya Nutalaya, _eExamiantination Committee
710	2		_aThe Royal Netherlands Government, _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. GT-85-20
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B19562
907			_a.b10081707 _bmnait _cs
902			_a240410
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909			_aBarcode : 30050120652721 _bCREATED : 1995-10-13 _cRECORD # : i10083716 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
909			_aBarcode : 30050003013678 _bCREATED : 1995-10-13 _cRECORD # : i10083728 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
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