Experimental Investigation and Design of Artificial Structures Controlling Dam-Break Floods

In order to verify the control effect of different artificial structures in dealing with barrier dam-break floods,flume model tests were conducted in lab on tetrahedral entity structure(TES),tetrahedral entity structure group(TESG),tetrahedral frame structure(TFS) and tetrahedral frame structure group(TFSG).The research results show that throwing artificial structures has an important effect on the control of barrier dam-break floods,and compared with no throwing artificial structures,throwing artificial structures can effectively reduce the peak break-out floods by 26.6% to 61.7%.Different artificial structures have different control effects,and optimal structures are in sequence TFSG,TESG,TFS and TES.In addition,increasing unit weight of artificial structures can improve the control effect.