000			03698nas a2200409 a 4500
005			20260818112714.0
008			230725s2023 th uu m rtt 0| a1eng d
035			_a.b12409157
099		9	_aAIT Thesis no.GE-22-03
100	0		_aJakrapun Khamboonruang
245	1	0	_aEvaluation of debris flow occurrence at Khlong Narai waterfall, Chanthaburi, Thailand
260			_aPathum Thani, Thailand : _bAsian Institute of Technology, _c2023
300			_a107 leaves : _bill.
490	1		_aThesis ; _vno. GE-22-03
500			_aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Geotechnical and Earth Resources Engineering
502			_aThesis (M. Eng.) - Asian Institute of Technology, 2023
520			_aIn landslide and debris flow research, many practices have been developed and applied to evaluate their characteristics and mechanisms for a better assessment. Geotechnical investigation is one of the valuable approaches that could contribute to a better understanding of debris flow behavior. Khlong Narai Debris Flow is a hazard that occurred in April 2017. This study area is located in Chanthaburi, Thailand. It is a granitic-related debris flow that was considered susceptible to landslides and debris flow according to various research. The field investigation and laboratory testing of the study area resulted in high-plasticity soil with low hydraulic conductivity. The application of slope stability analysis, empirical equations, and numerical simulation is involved in this study to estimate the thickness, volume, and behavior of debris flow. The thickness of possible failure derived from DEMs, and empirical equation based on slope gradient and elevation ranged between 0.25-20.76m., which resulted in an average failure volume of about 30,000 m3. The slope stability analysis could simulate the failure scar according to the boundary condition and parameters provided to the model. The results revealed that was not only precipitation causing the debris flow in this area, but there was a combination of another possible source of water from water pipe leakage (scope of the study). The characteristics and behavior of Khlong Narai Debris Flow were simulated using a 2D-runout model named RAMMS. The calibration gave appropriate Voellmy fluid-friction parameters for Dry-Coulomb friction ({uF06D}) and Viscous-turbulent friction (q) are 0.4 and 200 respectively with a yield stress value of about 100kPa. This sensitivity analysis allowed us to estimate the velocity of the flow at about 16.62m/s.
650		0	_aDebris avalanches _zThailand _zChanthaburi
650		0	_aLandslide hazard analysis _zThailand _zChanthaburi
700	1		_aChao, Kuo Chieh, _eChairperson
700	0		_aAvirut Puttiwongrak, _eExamination committee
700	0		_aKrit Saowiang, _eExamination committee
710	2		_aRoyal Thai Government, _eScholarship Donor
710	2		_aAsian Institute of Technology Scholarships, _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. GE-22-03
856	4	0	_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B19488
907			_a.b12409157 _bmnait _cm
902			_a250421
998			_b0 _c230725 _dm _ea _fm _g0
945			_lmnarc
945			_lmnarc
942			_c40
942			_c61
909			_aBarcode : 30050121040405 _bCREATED : 2023-07-21 _cRECORD # : i13456854 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
909			_aBarcode : - _bCREATED : 2023-07-21 _cRECORD # : i13456866 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
999			_c40904 _d40904