Device for preventing overtopping damage of medium and small earth and rockfill dams and transformation method

• Main Authors: JIANG LIJUN, MIAO CHENWEI, LIU YUELONG, ZHANG ZHIXIN, GU XIAOBING, LU YANQIANG, SHAO YONG, LIU LEI, CHEN LEI, TENG FENGLING, LIU QUFENG, NIU YUE, XIE HAIHONG, WANG LICHENG, QIANG JUAN, CHEN CHENG, LUAN TIANZHE, MA FANGMENG
• Format: Patent
• Language: Chinese; English
• Published: 28.10.2022
• Subjects: FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING

The invention discloses a device for preventing overtopping damage of medium and small earth and rockfill dams and a transformation method.The device for preventing overtopping damage of the medium and small earth and rockfill dams comprises a groove formed in the top of a dam body, sheet-pile walls oppositely arranged on the two sides of the groove and a filling layer which is laid in the groove and is of a multi-layer structure. The sheet-pile wall and the filling layer are obliquely arranged from the groove in the top of the dam body along the side, away from the water level, of the dam body. The groove, the sheet-pile wall and the filling layer jointly form the flood discharge channel for preventing flood overtopping, and the sheet-pile wall is wrapped by the surface layer of the filling layer to form the overall side wall and the bottom plate of the flood discharge channel. The sheet-pile wall formed by the precast piles and the precast slabs has the advantages of being rapid to disassemble and assemble