Study on flood damage cause and new waterway regulating structures in mountain river

Flood damage of regulating structures is a general phenomenon and it is difficult to be resolved. Block of the dam face is moved by fluid, erosion of foundation and bank around the dam is the main causes for the damage. For reducing the degree of damage, the methods of design and build techniques of traditional rock-fill dam,new structure are summarized and discussed. The new structures such as geotextile bag, mold-concrete have many advantages and good application prospect.