Through a series of flume experiments in the laboratory

the configuration of intercepted sediments by comb Dam

the length and slope of intercepted sediments are studied.The experimental results show that（1） The configuration of intercepted sediments by comb dam in total-blocking condition is similar to close-typed dam

and the height of intercepted sediments is almost equal to the height of comb dam near the foreside of dam body.At the tail of intercepted sediments

there is a steep slope.Under part-blocking circumstance

the configuration is similar to that of opening

and there is a flat slope.The gradient of above two typed slopes is less than the internal friction angle of sediment;（2）The length of intercepted sediment is related to the slit width

and the length of intercepted sediments gradually decreases with the increase of slit width.Moreover

the slit density and debris flow concentration also affect the length of intercepted sediments.（3）Under the same experimental circumstances

the slope of intercepted sediments is similar to that of close-typed dam.With the same slit width

slit density affect the slope of intercepted sediments

flume gradient and scale of debris flow.