Prediction of Slope Failure on Rock Cutting Slope

摘要

This study was carried out to make the score table for prediction of slope failure on cutting slope through investigating effect factors on slope failure at 150 slopes in the whole country. As a result, The effective factors of slope failure are showed in order as follows; technical level of slope control works, fill condition of discontinuity surface, slope form, direction of discontinuity surface to slope direction, record of slope failure, slope degree, height of slope, and weathering degree of bedrock. The result suggested that the cutting slope will be cut under 16m slope height and maintained under 62 degree of slope as much as possible in order to reduce slope failure. The score table for prediction of slope failure was made by the Quantification theoiy(I), which is well corresponded with dangerous degree of slope failure (R~2=0.48), and the verification ratio of the score table shows 62.5%. The score table for prediction of slope failure was evaluated to stable prediction method and will be useful for ojudgement of slope stability.