Laboratory Experiments on Breaching Characteristics of Natural Dams on Sloping Beds

Figure 4

Images of dam and flow at different times, showing overtopping erosion is the dominant factor for dam failure. (a) Stage I for dam failure process, 0-t1 period. (b) Stage II for dam failure process, t1-t2 period. (c) Stage III for dam failure process, t2-t3 period. (d) The longitudinal profiles of the dam in Stage II. It shows a whole backward erosion process.

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