STUDY ON MECHANISM FOR CHADIAN EMBANKMENT COLLAPSE AT YIDU REACH OF CHANGJIANG RIVER AND ITS CONTROL MEASURES

Embankment collapse is a heavy hazard for Changjiang River during flood season. The Chadian embankment collapse occurred at Yidu Reach of Changjiang River during the flood period 1998. The environmental geological conditions of the Yidu Reach are analyzed in the paper. The formation mechanism and stability of the embankment collapse are studied systematically. The control measures for the Chadian embankment collapse at Yidu Reach are presented.