Arid area ; China ; Collapse structures ; Experimentation ; Gully erosion ; Model ; Rill wash ; Scouring ; Soil erosion ; Valley ; Yunnan
, and a field soil profile was modelled in a test tank with an open side. The results revealed that the occurrence of the collapse of overhanging layers could be attributed to the development of a scour hole in the open side; the greater the flow rate, the lower
to the flow rate, implicating that the collapse is more dependent on rainfall (runoff) time rather than rainfall (runoff) intensity in the studied region. The cantilever model was modified to predict the stability of the overhanging soil body. It provided