QIU Cheng, WANG Chun-xiang, ESAKI Tetsuro, et al. Slope unit based probabilistic analysis of slope stability along highway routes in Japan[J]. 2005, 26(11).
QIU Cheng, WANG Chun-xiang, ESAKI Tetsuro, et al. Slope unit based probabilistic analysis of slope stability along highway routes in Japan[J]. 2005, 26(11).DOI:
that occurred on steep slopes along highway routes
always cause traffic stagnation
even endanger property and human life. For doing maintenance work effectively and avoiding disaster,it is essential to assess stability of road slopes. In this study
the large research area is firstly divided into slope units
which are used as the objectives of the three-dimensional deterministic model. Then a random searching method is used to locate the critical slip surface of each slope unit. The critical slip surface with the minimum safety factor is calculated by a GIS-based 3D slope stability model. The failure probability of each slope unit is calculated and landslide hazard degree of the studied area is zoned quantitatively. The methodology is illustrated by a probabilistic slope analysis of the 49th national road in Gouto area of Japan.