ANALYSIS ON THE DEBRIS FLOW SURGES

ＡＮＡＬＹＳＩＳＯＮＴＨＥＤＥＢＲＩＳＦＬＯＷＳＵＲＧＥＳ￥ＷａｎｇＧｕａｎｇｑｉａｎ（Ｐｒｏｆｅｓｓｏｒ，Ｄｅｐｔ．ｏｆＨｙｄｒａｕｌｉｃＥｎｇｉｎｅｅｒｉｎｇ，ＴｓｉｎｇｈｕａＵｎｉｖｅｒｓｉｔｙ）Ａｂｓｔｒａｃｔ：Ｂａｓｅｄｏｎｔｈｅｆｕｎｄａ...

ANALYSIS ON THE DEBRIS FLOW SURGES

Based on the fundamental equations for debris now surges, the surface wave profile of debris flow surges with the unchanged crest velocity has been analyzed, and it is compared with the wave proFile for 4 gusts of debris flow surges measured in Jiangya Gully of China.For the debris flow surges with the changing crest velocity in the process of the movement, the simulated cxpcrhocnts have been conducted on the flume, furthermore the corresponding computation has been carried out by using the characteristic line method. The measured results include the depth of the debris flow at the fixed point, wave crest position of debris now with talc and the fmal aggradation proFile of debris now surges. on the other hand, the calculated results are constituted of the movement processes and wave profiles of debris flow surges from the beginning to the fmal. It has been indicated by the comparison that the calculated results are in good agreement with the experimental data.