COLLAPSED SEDIMENT MOTION SIMULATION SYSTEM AND COLLAPSED SEDIMENT MOTION SIMULATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a collapsed sediment motion simulation system capable of easily determining tan φs and tan φm and allowing an LSFLOW to be executed.;SOLUTION: A collapsed sediment motion simulation system comprises: a display 3; a display processing part 8; a ground surface DEM preparation part 10; a slide face depth setting part 20; a base surface DEM preparation part 30; a stable analytic model preparation part 40; a stable analysis part 50; a φc calculation part 60 (also referred to as a slide face static friction coefficient calculation part); a φs-φm relationship definition part 70; a φs=φm value selection/determination part 80; an LSFLOW execution part 90; a simulation imaging part 100; and the like. In the simulation system, a dangerous slope AKi before collapse in an area Ai to be examined is specified and a cause of collapse (rain, earthquake intensity, ground water, or the like) is given, thereby obtaining a collapse simulation image according to a valley land form.;COPYRIGHT: (C)2015,JPO&INPIT