Progress in the cause and repair technology of channel seepage

Many irrigation channels in our country have been old, because of the construction materials and technology, etc. Now,there have been a serious seepage problem, The paper analyzes and summarizes the types of channel seepage control, and analyzes the causes of channel seepage from 4 aspects, such as the geological reasons, the hidden trouble in the construction stage, the biological damage and the human destruction. Finally, the corresponding channel seepage repair technology is put forward.