J-GLOBAL ID:200904087332730468  Research Project code:0150002458 Update date:Mar. 16, 2001

Development of rational risk evaluation method for break down of rocks bed and slopes

Study period:1998 - 2002
Organization (1):
Investigating Researcher (3):
Research overview:
This study is to develop a method that can appropriately evaluate and predict hazard (generation ratio of disasters and predicted scale of disasters) and risks (predicted damages) possessed by roads closely constructed to rocks bed and slopes that were broken down, and to construct a hazard-risk evaluation system for the two-dimensional evaluation of slopes of the road using GIS technique. We examined a) a simple method to predict hazard such as a slope break-down on the basis of past disasters and rainfall history, b) a method to compute a bread-down risk including direct loss and economic loss, and executed a case study between specific model spots in relation to those methods. As a result, it could be understood that frequency of generation of slope disasters could be simply evaluated and predicted by using a statistic process method between the spots where the past disaster history had been well arranged, and social loss accompanied by the break-down could be computed by setting several conditions regarding actual conditions of traffic between the target spots.
Research program: Ordinary Research
Ministry with control over the research :
Ministry of Land, Infrastructure, Transport and Tourism
Organization with control over the research:
Public Works Research Institute

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