The excavation stability of large rock mixture slope in FAST location is important to the project.This paper studies the possible two damage models that are deep layer sliding in the slope and the rock block failure in the surface layer,by choosing typical section.The results show that the stability factor of the most dangerous slip surface is about 2.8.So the large rock mixture slope will not slide inside.The rock block in the surface layer of the upper part of the slope is easier to destabilizing because ...
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