水库塌岸不仅使岸边的建筑物和大量的农田遭受毁坏,而且塌落下来的土石体淤积于水库,减少有效库容。因此,必须对水库塌岸作出预测以便迁出塌岸范围内的已有建筑设施,避免在塌岸带内再修新建筑工程。本文主要从地质分析方面、力学计算方面论述了汾河二库库岸岩质边坡的稳定性,对黄土边坡的塌岸宽度进行了预测 Reservoir bank collapse not only makes the shore of the buildings and a large number of farmland destroyed, but the slump of silt deposits in the reservoir, reducing the effective storage capacity. Therefore, it is necessary to predict the bank collapse of reservoirs so as to remove the existing building facilities in the bank collapse area and avoid any further construction work in the bank collapse zone. This paper mainly discusses the stability of rock slope in Fenhe Reservoir bank from geological analysis and mechanics calculation and predicts the bank collapse width of loess slope